From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-qv1-f71.google.com (mail-qv1-f71.google.com [209.85.219.71]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1001E410D16 for ; Thu, 28 May 2026 15:14:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.219.71 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779981300; cv=none; b=dnl6jAFoEAdplSEQrLTJhJkuThgz7mC1oUMEE1jKQg6ZS3kAUXhkPv6pSX4C2smdl7iGsW+/b8tWfRdmUKhMHi9B4pwOVhY4Bc7mmbhlF8U+3JF7lTtbEJiXtGInmzir/eoUN1vxfSAjG6PFqps1xtpUEB8zlKaFR85Acpo5+rw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779981300; c=relaxed/simple; bh=YlLT7XDbbPBd8fKGJAP4eBmFWjXmPgDMhfbSSCDIgN8=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To:Cc: Content-Type; b=Y5CpKF664EZrgm5DSE/umatlBR+Vq9ho9h5or7qPpEz7gTUu/pBv/ISZ4sfEAt8Y8etOQY7RxnEz8uGEb37SdYYcsmN8Y2Sz/mSmxgP/LZpZiERYVXFcDaw+JvUN8dxYJqN+DpM3yxPyEd/FgBZpAb5qwkmb2CTNqkZOR6Xgyes= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.219.71 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-qv1-f71.google.com with SMTP id 6a1803df08f44-8b49260e3d5so59954336d6.2 for ; Thu, 28 May 2026 08:14:59 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1779981299; x=1780586099; h=content-transfer-encoding:cc:to:from:subject:message-id:in-reply-to :date:mime-version:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=o5RDpZ3sRQ3t3WQklKEdYrsJ7BV8kodjhEai7ifmUfU=; b=q1t4TNjEG4G9RwyGemNVupprhuQM4v4DjuzE9JKZMrnBSRMEpq/AicQvYBrtgbj9Aw s1IbWNY+CrfEhtcDKK5f7Yb85CDIHgCEWFTZQepAXxomWg6Vzmf2c7Mu88M6OLF8CD7S TRZKW9vLmqqPK1ziHk9LMOhPscKzXwc2kVFm8ejG6nIfskuWs7SDOoSVYa+0ZwoifyEu EiM+zaOE3GT16T344ZWp9ja8EH7qICYjxT3EbsDRK1LhM+Mj67GHBdC5qgglwhxNWqQU ugvJJmIg3j0mcAquRXHXQ57Vb/c+m8gzFVzq1M/OWUnmEVU8xOePBGJUapgtp8391TJb IJRQ== X-Forwarded-Encrypted: i=1; AFNElJ+gpZs2vYfBB1IW4EmmyqmA5QGjGMrp3F7SHD8dFCgoVE3TQgHbCpaDRaBNP5ugyho2ctdoMPI=@lists.linux.dev X-Gm-Message-State: AOJu0Yx0OkEmz1Qd6eQOzvrswhTif4P0dkQwM9fecNv0di1eyxZKkjtv TILptj23DpSSpRzWgKnqD2jEobBVEFf+EFujIXQU0PFgPjvDWw67SWAvfUvzYsAsZQVenSU2CWR Xo1XjFHjXBUNJYQjQY/nHAmggmJ5FLRyDjkHCfchvxVEqKpixpCh22ACg6wU= Precedence: bulk X-Mailing-List: syzbot@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:1896:b0:69d:e3e7:332b with SMTP id 006d021491bc7-69de3e736f1mr3417127eaf.35.1779979659243; Thu, 28 May 2026 07:47:39 -0700 (PDT) Date: Thu, 28 May 2026 07:47:39 -0700 In-Reply-To: <6a18558a.99a1ea37.128423.06ab.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a18558b.586c836d.2e3ab2.06d8.GAE@google.com> Subject: Re: Re: [moderation/CI] Re: netlink: fix skb refcount leak when dump start fails From: syzbot To: syzbot@syzkaller.appspotmail.com Cc: pimyn@google.com, syzbot@lists.linux.dev, syzkaller-upstream-moderation@googlegroups.com Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> #syz upstream >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Failed to process the command. Cont= act syzkaller@googlegroups.com. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> On Thu, May 28, 2026 at 4:39=E2=80= =AFPM syzbot ci >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> syzbot ci has tested the followin= g series >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> [v1] netlink: fix skb refcount le= ak when dump start fails >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> https://lore.kernel.org/all/20260= 528073614.1169858-1-vulab@iscas.ac.cn >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> * [PATCH] netlink: fix skb refcou= nt leak when dump start fails >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> and found the following issues: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> * KASAN: slab-use-after-free Read= in nl80211_prepare_wdev_dump >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> * KASAN: slab-use-after-free Read= in xfrm_dump_sa_done >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> * KASAN: slab-use-after-free Writ= e in sk_skb_reason_drop >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Full report is available here: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> https://ci.syzbot.org/series/8ed6= f41d-0d02-4f1f-a7be-cc639c2b4cfd >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> *** >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> KASAN: slab-use-after-free Read i= n nl80211_prepare_wdev_dump >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> tree: net >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> URL: https://kernel.googles= ource.com/pub/scm/linux/kernel/git/netdev/net.git >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> base: 18014147d3ee7831dce53f= e65d7fc8d428b02552 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> arch: amd64 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> compiler: Debian clang version 2= 1.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD = 21.1.8 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> config: https://ci.syzbot.org/= builds/90c5185d-0dad-4c34-a563-4253ebb12eb2/config >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> syz repro: https://ci.syzbot.org/= findings/0ad9835c-f631-4240-a3ad-2610bca3de33/syz_repro >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> BUG: KASAN: slab-use-after-free i= n __nlmsg_parse include/net/netlink.h:784 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> BUG: KASAN: slab-use-after-free i= n nlmsg_parse_deprecated include/net/netlink.h:830 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> BUG: KASAN: slab-use-after-free i= n nl80211_prepare_wdev_dump+0x634/0x680 net/wireless/nl80211.c:1245 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Read of size 4 at addr ffff88816e= 172d80 by task syz.0.17/5814 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CPU: 1 UID: 0 PID: 5814 Comm: syz= .0.17 Not tainted syzkaller #0 PREEMPT(full) >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Hardware name: QEMU Standard PC (= Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Call Trace: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> dump_stack_lvl+0xe8/0x150 lib/du= mp_stack.c:120 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> print_address_description+0x55/0= x1e0 mm/kasan/report.c:378 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> print_report+0x58/0x70 mm/kasan/= report.c:482 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_report+0x117/0x150 mm/kasa= n/report.c:595 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __nlmsg_parse include/net/netlin= k.h:784 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> nlmsg_parse_deprecated include/n= et/netlink.h:830 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> nl80211_prepare_wdev_dump+0x634/= 0x680 net/wireless/nl80211.c:1245 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> nl80211_dump_station+0x186/0xdb0= net/wireless/nl80211.c:8216 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> genl_dumpit+0x10b/0x1b0 net/netl= ink/genetlink.c:1026 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> netlink_dump+0x702/0xe10 net/net= link/af_netlink.c:2325 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> netlink_recvmsg+0x690/0xa50 net/= netlink/af_netlink.c:1976 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> sock_recvmsg_nosec net/socket.c:= 1137 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> sock_recvmsg+0x172/0x1b0 net/soc= ket.c:1159 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __sys_recvfrom+0x240/0x3c0 net/s= ocket.c:2315 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __do_sys_recvfrom net/socket.c:2= 330 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __se_sys_recvfrom net/socket.c:2= 326 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __x64_sys_recvfrom+0xde/0x100 ne= t/socket.c:2326 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_x64 arch/x86/entry/sy= scall_64.c:63 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_64+0x15f/0xf80 arch/x= 86/entry/syscall_64.c:94 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> entry_SYSCALL_64_after_hwframe+0= x77/0x7f >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> RIP: 0033:0x7fd64155d68e >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Code: 08 0f 85 a5 a8 ff ff 49 89 = fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 = 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 0= 0 00 48 83 ec 08 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> RSP: 002b:00007fd6424b5e88 EFLAGS= : 00000246 ORIG_RAX: 000000000000002d >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> RAX: ffffffffffffffda RBX: 00007f= d6424b76c0 RCX: 00007fd64155d68e >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> RDX: 0000000000001000 RSI: 00007f= d6424b6000 RDI: 0000000000000003 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> RBP: 0000000000000000 R08: 000000= 0000000000 R09: 0000000000000000 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> R10: 0000000000000000 R11: 000000= 0000000246 R12: 0000000000000003 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> R13: 00007fd6424b5f58 R14: 00007f= d6424b6000 R15: 0000000000000000 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Allocated by task 5813: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_save_stack mm/kasan/common= .c:57 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_save_track+0x3e/0x80 mm/ka= san/common.c:78 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> unpoison_slab_object mm/kasan/co= mmon.c:340 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __kasan_slab_alloc+0x6c/0x80 mm/= kasan/common.c:366 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_slab_alloc include/linux/k= asan.h:253 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> slab_post_alloc_hook mm/slub.c:4= 569 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> slab_alloc_node mm/slub.c:4898 [= inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kmem_cache_alloc_node_noprof+0x3= 84/0x690 mm/slub.c:4950 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kmalloc_reserve net/core/skbuff.= c:613 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __alloc_skb+0x27d/0x7d0 net/core= /skbuff.c:713 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> netlink_sendmsg+0x5d4/0xb40 net/= netlink/af_netlink.c:1869 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> sock_sendmsg_nosec net/socket.c:= 787 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __sock_sendmsg net/socket.c:802 = [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ____sys_sendmsg+0x972/0x9f0 net/= socket.c:2698 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ___sys_sendmsg+0x2a5/0x360 net/s= ocket.c:2752 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __sys_sendmsg net/socket.c:2784 = [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __do_sys_sendmsg net/socket.c:27= 89 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __se_sys_sendmsg net/socket.c:27= 87 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __x64_sys_sendmsg+0x1bd/0x2a0 ne= t/socket.c:2787 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_x64 arch/x86/entry/sy= scall_64.c:63 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_64+0x15f/0xf80 arch/x= 86/entry/syscall_64.c:94 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> entry_SYSCALL_64_after_hwframe+0= x77/0x7f >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Freed by task 5813: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_save_stack mm/kasan/common= .c:57 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_save_track+0x3e/0x80 mm/ka= san/common.c:78 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_save_free_info+0x46/0x50 m= m/kasan/generic.c:584 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> poison_slab_object mm/kasan/comm= on.c:253 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __kasan_slab_free+0x5c/0x80 mm/k= asan/common.c:285 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_slab_free include/linux/ka= san.h:235 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> slab_free_hook mm/slub.c:2689 [i= nline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> slab_free mm/slub.c:6250 [inline= ] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kfree+0x1c5/0x640 mm/slub.c:6565 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> skb_kfree_head net/core/skbuff.c= :1075 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> skb_free_head net/core/skbuff.c:= 1087 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> skb_release_data+0x828/0xa60 net= /core/skbuff.c:1114 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> skb_release_all net/core/skbuff.= c:1189 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __kfree_skb+0x5d/0x210 net/core/= skbuff.c:1203 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> netlink_unicast_kernel net/netli= nk/af_netlink.c:1319 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> netlink_unicast+0x764/0x8e0 net/= netlink/af_netlink.c:1344 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> netlink_sendmsg+0x813/0xb40 net/= netlink/af_netlink.c:1894 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> sock_sendmsg_nosec net/socket.c:= 787 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __sock_sendmsg net/socket.c:802 = [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ____sys_sendmsg+0x972/0x9f0 net/= socket.c:2698 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ___sys_sendmsg+0x2a5/0x360 net/s= ocket.c:2752 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __sys_sendmsg net/socket.c:2784 = [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __do_sys_sendmsg net/socket.c:27= 89 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __se_sys_sendmsg net/socket.c:27= 87 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __x64_sys_sendmsg+0x1bd/0x2a0 ne= t/socket.c:2787 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_x64 arch/x86/entry/sy= scall_64.c:63 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_64+0x15f/0xf80 arch/x= 86/entry/syscall_64.c:94 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> entry_SYSCALL_64_after_hwframe+0= x77/0x7f >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> The buggy address belongs to the = object at ffff88816e172d80 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> which belongs to the cache skbuf= f_small_head of size 704 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> The buggy address is located 0 by= tes inside of >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> freed 704-byte region [ffff88816= e172d80, ffff88816e173040) >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> The buggy address belongs to the = physical page: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> page: refcount:0 mapcount:0 mappi= ng:0000000000000000 index:0x0 pfn:0x16e170 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> head: order:2 mapcount:0 entire_m= apcount:0 nr_pages_mapped:0 pincount:0 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> flags: 0x57ff00000000040(head|nod= e=3D1|zone=3D2|lastcpupid=3D0x7ff) >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> page_type: f5(slab) >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> raw: 057ff00000000040 ffff8881604= 15140 dead000000000100 dead000000000122 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> raw: 0000000000000000 00000008001= 20012 00000000f5000000 0000000000000000 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> head: 057ff00000000040 ffff888160= 415140 dead000000000100 dead000000000122 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> head: 0000000000000000 0000000800= 120012 00000000f5000000 0000000000000000 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> head: 057ff00000000002 ffffffffff= ffff01 00000000ffffffff 00000000ffffffff >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> head: ffffffffffffffff 0000000000= 000000 00000000ffffffff 0000000000000004 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> page dumped because: kasan: bad a= ccess detected >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> page_owner tracks the page as all= ocated >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> page last allocated via order 2, = migratetype Unmovable, gfp_mask 0xd2820(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORET= RY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5530, tgid 5530 (sshd), ts 47735478218= , free_ts 34702748767 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> set_page_owner include/linux/pag= e_owner.h:32 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> post_alloc_hook+0x22d/0x280 mm/p= age_alloc.c:1858 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> prep_new_page mm/page_alloc.c:18= 66 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> get_page_from_freelist+0x24ba/0x= 2540 mm/page_alloc.c:3946 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __alloc_frozen_pages_noprof+0x18= d/0x380 mm/page_alloc.c:5226 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> alloc_slab_page mm/slub.c:3278 [= inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> allocate_slab+0x77/0x660 mm/slub= .c:3467 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> new_slab mm/slub.c:3525 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> refill_objects+0x339/0x3d0 mm/sl= ub.c:7271 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> refill_sheaf mm/slub.c:2816 [inl= ine] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __pcs_replace_empty_main+0x321/0= x720 mm/slub.c:4651 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> alloc_from_pcs mm/slub.c:4749 [i= nline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> slab_alloc_node mm/slub.c:4883 [= inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kmem_cache_alloc_node_noprof+0x4= 41/0x690 mm/slub.c:4950 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kmalloc_reserve net/core/skbuff.= c:613 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __alloc_skb+0x27d/0x7d0 net/core= /skbuff.c:713 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> alloc_skb include/linux/skbuff.h= :1383 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __tcp_send_ack+0xae/0x4f0 net/ip= v4/tcp_output.c:4473 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> tcp_cleanup_rbuf net/ipv4/tcp.c:= 1612 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> tcp_recvmsg_locked+0x2dfa/0x3720= net/ipv4/tcp.c:2916 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> tcp_recvmsg+0x205/0x7e0 net/ipv4= /tcp.c:2945 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> sock_recvmsg_nosec net/socket.c:= 1137 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> sock_recvmsg+0x155/0x1b0 net/soc= ket.c:1159 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> sock_read_iter+0x251/0x320 net/s= ocket.c:1229 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> new_sync_read fs/read_write.c:49= 3 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> vfs_read+0x582/0xa70 fs/read_wri= te.c:574 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ksys_read+0x150/0x270 fs/read_wr= ite.c:717 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_x64 arch/x86/entry/sy= scall_64.c:63 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_64+0x15f/0xf80 arch/x= 86/entry/syscall_64.c:94 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> page last free pid 5059 tgid 5059= stack trace: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> reset_page_owner include/linux/p= age_owner.h:25 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __free_pages_prepare mm/page_all= oc.c:1402 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __free_frozen_pages+0xbc7/0xd30 = mm/page_alloc.c:2943 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __slab_free+0x274/0x2c0 mm/slub.= c:5612 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> qlink_free mm/kasan/quarantine.c= :163 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> qlist_free_all+0x99/0x100 mm/kas= an/quarantine.c:179 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_quarantine_reduce+0x148/0x= 160 mm/kasan/quarantine.c:286 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __kasan_slab_alloc+0x22/0x80 mm/= kasan/common.c:350 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_slab_alloc include/linux/k= asan.h:253 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> slab_post_alloc_hook mm/slub.c:4= 569 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> slab_alloc_node mm/slub.c:4898 [= inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __do_kmalloc_node mm/slub.c:5294= [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __kvmalloc_node_noprof+0x4d7/0x8= a0 mm/slub.c:6832 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> seq_buf_alloc fs/seq_file.c:39 [= inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> seq_read_iter+0x202/0xe10 fs/seq= _file.c:211 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> new_sync_read fs/read_write.c:49= 3 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> vfs_read+0x582/0xa70 fs/read_wri= te.c:574 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ksys_read+0x150/0x270 fs/read_wr= ite.c:717 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_x64 arch/x86/entry/sy= scall_64.c:63 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_64+0x15f/0xf80 arch/x= 86/entry/syscall_64.c:94 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> entry_SYSCALL_64_after_hwframe+0= x77/0x7f >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Memory state around the buggy add= ress: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ffff88816e172c80: fb fb fb fb fb= fb fb fb fc fc fc fc fc fc fc fc >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ffff88816e172d00: fc fc fc fc fc= fc fc fc fc fc fc fc fc fc fc fc >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >ffff88816e172d80: fa fb fb fb fb= fb fb fb fb fb fb fb fb fb fb fb >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ^ >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ffff88816e172e00: fb fb fb fb fb= fb fb fb fb fb fb fb fb fb fb fb >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ffff88816e172e80: fb fb fb fb fb= fb fb fb fb fb fb fb fb fb fb fb >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> *** >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> KASAN: slab-use-after-free Read i= n xfrm_dump_sa_done >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> tree: net >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> URL: https://kernel.googles= ource.com/pub/scm/linux/kernel/git/netdev/net.git >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> base: 18014147d3ee7831dce53f= e65d7fc8d428b02552 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> arch: amd64 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> compiler: Debian clang version 2= 1.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD = 21.1.8 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> config: https://ci.syzbot.org/= builds/90c5185d-0dad-4c34-a563-4253ebb12eb2/config >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> syz repro: https://ci.syzbot.org/= findings/53579ff8-1479-4e0c-ae08-2f1ea756ee1b/syz_repro >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> BUG: KASAN: slab-use-after-free i= n xfrm_dump_sa_done+0x54/0xd0 net/xfrm/xfrm_user.c:1491 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Read of size 8 at addr ffff888167= 305398 by task syz.0.17/5812 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CPU: 1 UID: 0 PID: 5812 Comm: syz= .0.17 Not tainted syzkaller #0 PREEMPT(full) >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Hardware name: QEMU Standard PC (= Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Call Trace: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> dump_stack_lvl+0xe8/0x150 lib/du= mp_stack.c:120 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> print_address_description+0x55/0= x1e0 mm/kasan/report.c:378 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> print_report+0x58/0x70 mm/kasan/= report.c:482 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_report+0x117/0x150 mm/kasa= n/report.c:595 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> xfrm_dump_sa_done+0x54/0xd0 net/= xfrm/xfrm_user.c:1491 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> netlink_release+0x12c8/0x1ad0 ne= t/netlink/af_netlink.c:768 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __sock_release net/socket.c:722 = [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> sock_close+0xc3/0x240 net/socket= .c:1514 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __fput+0x44f/0xa60 fs/file_table= .c:510 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> task_work_run+0x1d9/0x270 kernel= /task_work.c:233 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> resume_user_mode_work include/li= nux/resume_user_mode.h:50 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __exit_to_user_mode_loop kernel/= entry/common.c:67 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> exit_to_user_mode_loop+0xf3/0x4d= 0 kernel/entry/common.c:98 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __exit_to_user_mode_prepare incl= ude/linux/irq-entry-common.h:207 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> syscall_exit_to_user_mode_prepar= e include/linux/irq-entry-common.h:230 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> syscall_exit_to_user_mode includ= e/linux/entry-common.h:318 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_64+0x33e/0xf80 arch/x= 86/entry/syscall_64.c:100 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> entry_SYSCALL_64_after_hwframe+0= x77/0x7f >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> RIP: 0033:0x7fe50bf9ce59 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Code: ff c3 66 2e 0f 1f 84 00 00 = 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 = c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f= 7 d8 64 89 01 48 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> RSP: 002b:00007fff8a02cc38 EFLAGS= : 00000246 ORIG_RAX: 00000000000001b4 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> RAX: 0000000000000000 RBX: 00007f= e50c217da0 RCX: 00007fe50bf9ce59 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> RDX: 0000000000000000 RSI: 000000= 000000001e RDI: 0000000000000003 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> RBP: 00007fe50c217da0 R08: 00007f= e50c216038 R09: 0000000000000000 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> R10: 000000000003fdd4 R11: 000000= 0000000246 R12: 0000000000010018 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> R13: 00007fe50c215fac R14: 00007f= e50c215fa8 R15: 00007fe50c215fa0 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Allocated by task 5813: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_save_stack mm/kasan/common= .c:57 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_save_track+0x3e/0x80 mm/ka= san/common.c:78 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> unpoison_slab_object mm/kasan/co= mmon.c:340 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __kasan_slab_alloc+0x6c/0x80 mm/= kasan/common.c:366 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_slab_alloc include/linux/k= asan.h:253 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> slab_post_alloc_hook mm/slub.c:4= 569 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> slab_alloc_node mm/slub.c:4898 [= inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kmem_cache_alloc_node_noprof+0x3= 84/0x690 mm/slub.c:4950 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __alloc_skb+0x1d0/0x7d0 net/core= /skbuff.c:702 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> netlink_sendmsg+0x5d4/0xb40 net/= netlink/af_netlink.c:1869 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> sock_sendmsg_nosec net/socket.c:= 787 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __sock_sendmsg net/socket.c:802 = [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ____sys_sendmsg+0x972/0x9f0 net/= socket.c:2698 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ___sys_sendmsg+0x2a5/0x360 net/s= ocket.c:2752 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __sys_sendmsg net/socket.c:2784 = [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __do_sys_sendmsg net/socket.c:27= 89 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __se_sys_sendmsg net/socket.c:27= 87 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __x64_sys_sendmsg+0x1bd/0x2a0 ne= t/socket.c:2787 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_x64 arch/x86/entry/sy= scall_64.c:63 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_64+0x15f/0xf80 arch/x= 86/entry/syscall_64.c:94 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> entry_SYSCALL_64_after_hwframe+0= x77/0x7f >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Freed by task 5813: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_save_stack mm/kasan/common= .c:57 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_save_track+0x3e/0x80 mm/ka= san/common.c:78 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_save_free_info+0x46/0x50 m= m/kasan/generic.c:584 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> poison_slab_object mm/kasan/comm= on.c:253 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __kasan_slab_free+0x5c/0x80 mm/k= asan/common.c:285 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_slab_free include/linux/ka= san.h:235 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> slab_free_hook mm/slub.c:2689 [i= nline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> slab_free mm/slub.c:6250 [inline= ] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kmem_cache_free+0x182/0x650 mm/s= lub.c:6377 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> netlink_unicast_kernel net/netli= nk/af_netlink.c:1319 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> netlink_unicast+0x764/0x8e0 net/= netlink/af_netlink.c:1344 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> netlink_sendmsg+0x813/0xb40 net/= netlink/af_netlink.c:1894 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> sock_sendmsg_nosec net/socket.c:= 787 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __sock_sendmsg net/socket.c:802 = [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ____sys_sendmsg+0x972/0x9f0 net/= socket.c:2698 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ___sys_sendmsg+0x2a5/0x360 net/s= ocket.c:2752 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __sys_sendmsg net/socket.c:2784 = [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __do_sys_sendmsg net/socket.c:27= 89 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __se_sys_sendmsg net/socket.c:27= 87 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __x64_sys_sendmsg+0x1bd/0x2a0 ne= t/socket.c:2787 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_x64 arch/x86/entry/sy= scall_64.c:63 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_64+0x15f/0xf80 arch/x= 86/entry/syscall_64.c:94 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> entry_SYSCALL_64_after_hwframe+0= x77/0x7f >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> The buggy address belongs to the = object at ffff888167305380 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> which belongs to the cache skbuf= f_head_cache of size 240 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> The buggy address is located 24 b= ytes inside of >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> freed 240-byte region [ffff88816= 7305380, ffff888167305470) >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> The buggy address belongs to the = physical page: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> page: refcount:0 mapcount:0 mappi= ng:0000000000000000 index:0x0 pfn:0x167304 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> head: order:1 mapcount:0 entire_m= apcount:0 nr_pages_mapped:0 pincount:0 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> flags: 0x57ff00000000040(head|nod= e=3D1|zone=3D2|lastcpupid=3D0x7ff) >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> page_type: f5(slab) >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> raw: 057ff00000000040 ffff8881604= 16dc0 dead000000000100 dead000000000122 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> raw: 0000000000000000 00000008001= 50015 00000000f5000000 0000000000000000 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> head: 057ff00000000040 ffff888160= 416dc0 dead000000000100 dead000000000122 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> head: 0000000000000000 0000000800= 150015 00000000f5000000 0000000000000000 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> head: 057ff00000000001 ffffffffff= ffff81 00000000ffffffff 00000000ffffffff >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> head: ffffffffffffffff 0000000000= 000000 00000000ffffffff 0000000000000002 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> page dumped because: kasan: bad a= ccess detected >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> page_owner tracks the page as all= ocated >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> page last allocated via order 1, = migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GF= P_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5813, tgid 5812 (syz.0.17), ts = 64859679564, free_ts 63312613640 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> set_page_owner include/linux/pag= e_owner.h:32 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> post_alloc_hook+0x22d/0x280 mm/p= age_alloc.c:1858 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> prep_new_page mm/page_alloc.c:18= 66 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> get_page_from_freelist+0x24ba/0x= 2540 mm/page_alloc.c:3946 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __alloc_frozen_pages_noprof+0x18= d/0x380 mm/page_alloc.c:5226 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> alloc_slab_page mm/slub.c:3278 [= inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> allocate_slab+0x77/0x660 mm/slub= .c:3467 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> new_slab mm/slub.c:3525 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> refill_objects+0x339/0x3d0 mm/sl= ub.c:7271 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> refill_sheaf mm/slub.c:2816 [inl= ine] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __pcs_replace_empty_main+0x321/0= x720 mm/slub.c:4651 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> alloc_from_pcs mm/slub.c:4749 [i= nline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> slab_alloc_node mm/slub.c:4883 [= inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kmem_cache_alloc_node_noprof+0x4= 41/0x690 mm/slub.c:4950 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __alloc_skb+0x1d0/0x7d0 net/core= /skbuff.c:702 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> netlink_sendmsg+0x5d4/0xb40 net/= netlink/af_netlink.c:1869 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> sock_sendmsg_nosec net/socket.c:= 787 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __sock_sendmsg net/socket.c:802 = [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ____sys_sendmsg+0x972/0x9f0 net/= socket.c:2698 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ___sys_sendmsg+0x2a5/0x360 net/s= ocket.c:2752 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __sys_sendmsg net/socket.c:2784 = [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __do_sys_sendmsg net/socket.c:27= 89 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __se_sys_sendmsg net/socket.c:27= 87 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __x64_sys_sendmsg+0x1bd/0x2a0 ne= t/socket.c:2787 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_x64 arch/x86/entry/sy= scall_64.c:63 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_64+0x15f/0xf80 arch/x= 86/entry/syscall_64.c:94 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> entry_SYSCALL_64_after_hwframe+0= x77/0x7f >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> page last free pid 15 tgid 15 sta= ck trace: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> reset_page_owner include/linux/p= age_owner.h:25 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __free_pages_prepare mm/page_all= oc.c:1402 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __free_frozen_pages+0xbc7/0xd30 = mm/page_alloc.c:2943 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> rcu_do_batch kernel/rcu/tree.c:2= 617 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> rcu_core+0x7cd/0x1070 kernel/rcu= /tree.c:2869 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> handle_softirqs+0x22a/0x840 kern= el/softirq.c:622 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> run_ksoftirqd+0x36/0x60 kernel/s= oftirq.c:1076 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> smpboot_thread_fn+0x541/0xa50 ke= rnel/smpboot.c:160 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kthread+0x389/0x470 kernel/kthre= ad.c:436 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ret_from_fork+0x514/0xb70 arch/x= 86/kernel/process.c:158 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ret_from_fork_asm+0x1a/0x30 arch= /x86/entry/entry_64.S:245 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Memory state around the buggy add= ress: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ffff888167305280: fb fb fb fb fb= fb fb fb fb fb fb fb fb fb fc fc >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ffff888167305300: fc fc fc fc fc= fc fc fc fc fc fc fc fc fc fc fc >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >ffff888167305380: fa fb fb fb fb= fb fb fb fb fb fb fb fb fb fb fb >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ^ >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ffff888167305400: fb fb fb fb fb= fb fb fb fb fb fb fb fb fb fc fc >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ffff888167305480: fc fc fc fc fc= fc fc fc fc fc fc fc fc fc fc fc >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> *** >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> KASAN: slab-use-after-free Write = in sk_skb_reason_drop >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> tree: net >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> URL: https://kernel.googles= ource.com/pub/scm/linux/kernel/git/netdev/net.git >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> base: 18014147d3ee7831dce53f= e65d7fc8d428b02552 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> arch: amd64 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> compiler: Debian clang version 2= 1.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD = 21.1.8 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> config: https://ci.syzbot.org/= builds/90c5185d-0dad-4c34-a563-4253ebb12eb2/config >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> syz repro: https://ci.syzbot.org/= findings/c87569e1-d26e-4670-a17b-9f2f64a5af67/syz_repro >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> BUG: KASAN: slab-use-after-free i= n instrument_atomic_read_write include/linux/instrumented.h:112 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> BUG: KASAN: slab-use-after-free i= n atomic_fetch_sub_release include/linux/atomic/atomic-instrumented.h:400 [= inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> BUG: KASAN: slab-use-after-free i= n __refcount_sub_and_test include/linux/refcount.h:389 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> BUG: KASAN: slab-use-after-free i= n __refcount_dec_and_test include/linux/refcount.h:432 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> BUG: KASAN: slab-use-after-free i= n refcount_dec_and_test include/linux/refcount.h:450 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> BUG: KASAN: slab-use-after-free i= n skb_unref include/linux/skbuff.h:1292 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> BUG: KASAN: slab-use-after-free i= n __sk_skb_reason_drop net/core/skbuff.c:1212 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> BUG: KASAN: slab-use-after-free i= n sk_skb_reason_drop+0x37/0x110 net/core/skbuff.c:1240 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Write of size 4 at addr ffff88811= 78efee4 by task syz.1.18/5873 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CPU: 0 UID: 0 PID: 5873 Comm: syz= .1.18 Not tainted syzkaller #0 PREEMPT(full) >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Hardware name: QEMU Standard PC (= Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Call Trace: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> dump_stack_lvl+0xe8/0x150 lib/du= mp_stack.c:120 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> print_address_description+0x55/0= x1e0 mm/kasan/report.c:378 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> print_report+0x58/0x70 mm/kasan/= report.c:482 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_report+0x117/0x150 mm/kasa= n/report.c:595 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> check_region_inline mm/kasan/gen= eric.c:-1 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_check_range+0x264/0x2c0 mm= /kasan/generic.c:200 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> instrument_atomic_read_write inc= lude/linux/instrumented.h:112 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> atomic_fetch_sub_release include= /linux/atomic/atomic-instrumented.h:400 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __refcount_sub_and_test include/= linux/refcount.h:389 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __refcount_dec_and_test include/= linux/refcount.h:432 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> refcount_dec_and_test include/li= nux/refcount.h:450 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> skb_unref include/linux/skbuff.h= :1292 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __sk_skb_reason_drop net/core/sk= buff.c:1212 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> sk_skb_reason_drop+0x37/0x110 ne= t/core/skbuff.c:1240 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kfree_skb_reason include/linux/s= kbuff.h:1322 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kfree_skb include/linux/skbuff.h= :1331 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> netlink_release+0x133a/0x1ad0 ne= t/netlink/af_netlink.c:770 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __sock_release net/socket.c:722 = [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> sock_close+0xc3/0x240 net/socket= .c:1514 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __fput+0x44f/0xa60 fs/file_table= .c:510 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> task_work_run+0x1d9/0x270 kernel= /task_work.c:233 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> resume_user_mode_work include/li= nux/resume_user_mode.h:50 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __exit_to_user_mode_loop kernel/= entry/common.c:67 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> exit_to_user_mode_loop+0xf3/0x4d= 0 kernel/entry/common.c:98 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __exit_to_user_mode_prepare incl= ude/linux/irq-entry-common.h:207 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> syscall_exit_to_user_mode_prepar= e include/linux/irq-entry-common.h:230 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> syscall_exit_to_user_mode includ= e/linux/entry-common.h:318 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_64+0x33e/0xf80 arch/x= 86/entry/syscall_64.c:100 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> entry_SYSCALL_64_after_hwframe+0= x77/0x7f >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> RIP: 0033:0x7fd4d139ce59 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Code: ff c3 66 2e 0f 1f 84 00 00 = 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 = c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f= 7 d8 64 89 01 48 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> RSP: 002b:00007fff722ecbf8 EFLAGS= : 00000246 ORIG_RAX: 00000000000001b4 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> RAX: 0000000000000000 RBX: 00007f= ff722ecce0 RCX: 00007fd4d139ce59 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> RDX: 0000000000000000 RSI: 000000= 000000001e RDI: 0000000000000003 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> RBP: 0000000000012825 R08: 000000= 0000000001 R09: 0000000000000000 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> R10: 0000001b32e20000 R11: 000000= 0000000246 R12: 00007fff722ecd20 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> R13: 00007fd4d1615fac R14: 000000= 0000012859 R15: 00007fd4d1615fa0 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Allocated by task 5874: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_save_stack mm/kasan/common= .c:57 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_save_track+0x3e/0x80 mm/ka= san/common.c:78 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> unpoison_slab_object mm/kasan/co= mmon.c:340 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __kasan_mempool_unpoison_object+= 0xa3/0x130 mm/kasan/common.c:564 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_mempool_unpoison_object in= clude/linux/kasan.h:391 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> napi_skb_cache_get+0x3c8/0x780 n= et/core/skbuff.c:306 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __alloc_skb+0x19a/0x7d0 net/core= /skbuff.c:696 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> netlink_sendmsg+0x5d4/0xb40 net/= netlink/af_netlink.c:1869 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> sock_sendmsg_nosec net/socket.c:= 787 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __sock_sendmsg net/socket.c:802 = [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __sys_sendto+0x672/0x710 net/soc= ket.c:2265 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __do_sys_sendto net/socket.c:227= 2 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __se_sys_sendto net/socket.c:226= 8 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __x64_sys_sendto+0xde/0x100 net/= socket.c:2268 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_x64 arch/x86/entry/sy= scall_64.c:63 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_64+0x15f/0xf80 arch/x= 86/entry/syscall_64.c:94 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> entry_SYSCALL_64_after_hwframe+0= x77/0x7f >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Freed by task 5874: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_save_stack mm/kasan/common= .c:57 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_save_track+0x3e/0x80 mm/ka= san/common.c:78 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_save_free_info+0x46/0x50 m= m/kasan/generic.c:584 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> poison_slab_object mm/kasan/comm= on.c:253 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __kasan_slab_free+0x5c/0x80 mm/k= asan/common.c:285 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_slab_free include/linux/ka= san.h:235 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> slab_free_hook mm/slub.c:2689 [i= nline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> slab_free mm/slub.c:6250 [inline= ] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kmem_cache_free+0x182/0x650 mm/s= lub.c:6377 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> netlink_unicast_kernel net/netli= nk/af_netlink.c:1319 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> netlink_unicast+0x764/0x8e0 net/= netlink/af_netlink.c:1344 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> netlink_sendmsg+0x813/0xb40 net/= netlink/af_netlink.c:1894 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> sock_sendmsg_nosec net/socket.c:= 787 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __sock_sendmsg net/socket.c:802 = [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __sys_sendto+0x672/0x710 net/soc= ket.c:2265 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __do_sys_sendto net/socket.c:227= 2 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __se_sys_sendto net/socket.c:226= 8 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __x64_sys_sendto+0xde/0x100 net/= socket.c:2268 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_x64 arch/x86/entry/sy= scall_64.c:63 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_64+0x15f/0xf80 arch/x= 86/entry/syscall_64.c:94 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> entry_SYSCALL_64_after_hwframe+0= x77/0x7f >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> The buggy address belongs to the = object at ffff8881178efe00 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> which belongs to the cache skbuf= f_head_cache of size 240 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> The buggy address is located 228 = bytes inside of >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> freed 240-byte region [ffff88811= 78efe00, ffff8881178efef0) >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> The buggy address belongs to the = physical page: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> page: refcount:0 mapcount:0 mappi= ng:0000000000000000 index:0x0 pfn:0x1178ee >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> head: order:1 mapcount:0 entire_m= apcount:0 nr_pages_mapped:0 pincount:0 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> flags: 0x17ff00000000040(head|nod= e=3D0|zone=3D2|lastcpupid=3D0x7ff) >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> page_type: f5(slab) >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> raw: 017ff00000000040 ffff8881604= 16c80 dead000000000122 0000000000000000 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> raw: 0000000000000000 00000008001= 50015 00000000f5000000 0000000000000000 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> head: 017ff00000000040 ffff888160= 416c80 dead000000000122 0000000000000000 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> head: 0000000000000000 0000000800= 150015 00000000f5000000 0000000000000000 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> head: 017ff00000000001 ffffffffff= ffff81 00000000ffffffff 00000000ffffffff >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> head: ffffffffffffffff 0000000000= 000000 00000000ffffffff 0000000000000002 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> page dumped because: kasan: bad a= ccess detected >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> page_owner tracks the page as all= ocated >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> page last allocated via order 1, = migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GF= P_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5050, tgid 5050 (klogd), ts 758= 87265953, free_ts 75876344896 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> set_page_owner include/linux/pag= e_owner.h:32 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> post_alloc_hook+0x22d/0x280 mm/p= age_alloc.c:1858 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> prep_new_page mm/page_alloc.c:18= 66 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> get_page_from_freelist+0x24ba/0x= 2540 mm/page_alloc.c:3946 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __alloc_frozen_pages_noprof+0x18= d/0x380 mm/page_alloc.c:5226 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> alloc_slab_page mm/slub.c:3278 [= inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> allocate_slab+0x77/0x660 mm/slub= .c:3467 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> new_slab mm/slub.c:3525 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> refill_objects+0x339/0x3d0 mm/sl= ub.c:7271 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> refill_sheaf mm/slub.c:2816 [inl= ine] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __pcs_replace_empty_main+0x321/0= x720 mm/slub.c:4651 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> alloc_from_pcs mm/slub.c:4749 [i= nline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> slab_alloc_node mm/slub.c:4883 [= inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kmem_cache_alloc_node_noprof+0x4= 41/0x690 mm/slub.c:4950 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __alloc_skb+0x1d0/0x7d0 net/core= /skbuff.c:702 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> alloc_skb include/linux/skbuff.h= :1383 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> alloc_skb_with_frags+0xc8/0x760 = net/core/skbuff.c:6743 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> sock_alloc_send_pskb+0x878/0x990= net/core/sock.c:2998 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> unix_dgram_sendmsg+0x460/0x18d0 = net/unix/af_unix.c:2141 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> sock_sendmsg_nosec net/socket.c:= 787 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __sock_sendmsg net/socket.c:802 = [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __sys_sendto+0x672/0x710 net/soc= ket.c:2265 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __do_sys_sendto net/socket.c:227= 2 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __se_sys_sendto net/socket.c:226= 8 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __x64_sys_sendto+0xde/0x100 net/= socket.c:2268 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_x64 arch/x86/entry/sy= scall_64.c:63 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_64+0x15f/0xf80 arch/x= 86/entry/syscall_64.c:94 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> entry_SYSCALL_64_after_hwframe+0= x77/0x7f >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> page last free pid 0 tgid 0 stack= trace: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> reset_page_owner include/linux/p= age_owner.h:25 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __free_pages_prepare mm/page_all= oc.c:1402 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __free_frozen_pages+0xbc7/0xd30 = mm/page_alloc.c:2943 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> rcu_do_batch kernel/rcu/tree.c:2= 617 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> rcu_core+0x7cd/0x1070 kernel/rcu= /tree.c:2869 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> handle_softirqs+0x22a/0x840 kern= el/softirq.c:622 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __do_softirq kernel/softirq.c:65= 6 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> invoke_softirq kernel/softirq.c:= 496 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __irq_exit_rcu+0xca/0x220 kernel= /softirq.c:735 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> irq_exit_rcu+0x9/0x30 kernel/sof= tirq.c:752 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> instr_sysvec_apic_timer_interrup= t arch/x86/kernel/apic/apic.c:1061 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> sysvec_apic_timer_interrupt+0xa6= /0xc0 arch/x86/kernel/apic/apic.c:1061 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> asm_sysvec_apic_timer_interrupt+= 0x1a/0x20 arch/x86/include/asm/idtentry.h:697 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Memory state around the buggy add= ress: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ffff8881178efd80: fc fc fc fc fc= fc fc fc fc fc fc fc fc fc fc fc >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ffff8881178efe00: fa fb fb fb fb= fb fb fb fb fb fb fb fb fb fb fb >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >ffff8881178efe80: fb fb fb fb fb= fb fb fb fb fb fb fb fb fb fc fc >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> = ^ >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ffff8881178eff00: fc fc fc fc fc= fc fc fc fc fc fc fc fc fc fc fc >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ffff8881178eff80: fc fc fc fc fc= fc fc fc fc fc fc fc fc fc fc fc >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> *** >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> If these findings have caused you= to resend the series or submit a >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> separate fix, please add the foll= owing tag to your commit message: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Tested-by: syzbot@syzkaller.app= spotmail.com >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> --- >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> This report is generated by a bot= . It may contain errors. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> syzbot ci engineers can be reache= d at syzkaller@googlegroups.com. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> To test a patch for this bug, ple= ase reply with `#syz test` >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> (should be on a separate line). >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> The patch should be attached to t= he email. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Note: arguments like custom git r= epos and branches are not supported. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> The email will later be sent to: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> [davem@davemloft.net edumazet@goo= gle.com horms@kernel.org kees@kernel.org kuba@kernel.org kuniyu@google.com = linux-kernel@vger.kernel.org netdev@vger.kernel.org pabeni@redhat.com stabl= e@vger.kernel.org vulab@iscas.ac.cn yangfeng@kylinos.cn] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> If the report looks fine to you, = reply with: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> #syz upstream >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> If the report is a false positive= , reply with >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> #syz invalid >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> -- >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> You received this message because= you are subscribed to the Google Groups "syzkaller-upstream-moderation" gr= oup. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> To unsubscribe from this group an= d stop receiving emails from it, send an email to syzkaller-upstream-modera= tion+unsubscribe@googlegroups.com. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> To view this discussion visit htt= ps://groups.google.com/d/msgid/syzkaller-upstream-moderation/6a185386.99a1e= a37.128423.0001.GAE%40google.com. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> --=20 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> You received this message because y= ou are subscribed to the Google Groups "syzkaller-upstream-moderation" grou= p. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> To unsubscribe from this group and = stop receiving emails from it, send an email to syzkaller-upstream-moderati= on+unsubscribe@googlegroups.com. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> To view this discussion visit https= ://groups.google.com/d/msgid/syzkaller-upstream-moderation/6a18555e.e783d62= 7.6395.0001.GAE%40google.com. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> I see the command but can't find the= corresponding bug. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> The email is sent to syzbot+HASH@sy= zkaller.appspotmail.com address >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> but the HASH does not correspond to = any known bug. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Please double check the address. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> --=20 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> You received this message because yo= u are subscribed to the Google Groups "syzkaller-upstream-moderation" group= . >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> To unsubscribe from this group and s= top receiving emails from it, send an email to syzkaller-upstream-moderatio= n+unsubscribe@googlegroups.com. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> To view this discussion visit https:= //groups.google.com/d/msgid/syzkaller-upstream-moderation/6a185560.7f45b5d1= .9d2a9.0004.GAE%40google.com. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> I see the command but can't find the = corresponding bug. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> The email is sent to syzbot+HASH@syz= kaller.appspotmail.com address >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> but the HASH does not correspond to a= ny known bug. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Please double check the address. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> --=20 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> You received this message because you= are subscribed to the Google Groups "syzkaller-upstream-moderation" group. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> To unsubscribe from this group and st= op receiving emails from it, send an email to syzkaller-upstream-moderation= +unsubscribe@googlegroups.com. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> To view this discussion visit https:/= /groups.google.com/d/msgid/syzkaller-upstream-moderation/6a185565.222db38e.= c0a93.0002.GAE%40google.com. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> I see the command but can't find the c= orresponding bug. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> The email is sent to syzbot+HASH@syzk= aller.appspotmail.com address >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> but the HASH does not correspond to an= y known bug. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Please double check the address. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> I see the command but can't find the co= rresponding bug. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> The email is sent to syzbot+HASH@syzka= ller.appspotmail.com address >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> but the HASH does not correspond to any= known bug. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Please double check the address. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> I see the command but can't find the cor= responding bug. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> The email is sent to syzbot+HASH@syzkal= ler.appspotmail.com address >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> but the HASH does not correspond to any = known bug. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Please double check the address. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> I see the command but can't find the corr= esponding bug. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> The email is sent to syzbot+HASH@syzkall= er.appspotmail.com address >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> but the HASH does not correspond to any k= nown bug. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Please double check the address. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> I see the command but can't find the corre= sponding bug. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> The email is sent to syzbot+HASH@syzkalle= r.appspotmail.com address >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> but the HASH does not correspond to any kn= own bug. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Please double check the address. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> I see the command but can't find the corres= ponding bug. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> The email is sent to syzbot+HASH@syzkaller= .appspotmail.com address >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> but the HASH does not correspond to any kno= wn bug. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Please double check the address. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>> I see the command but can't find the corresp= onding bug. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>> The email is sent to syzbot+HASH@syzkaller.= appspotmail.com address >>>>>>>>>>>>>>>>>>>>>>>>>>>>>> but the HASH does not correspond to any know= n bug. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Please double check the address. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>> I see the command but can't find the correspo= nding bug. >>>>>>>>>>>>>>>>>>>>>>>>>>>>> The email is sent to syzbot+HASH@syzkaller.a= ppspotmail.com address >>>>>>>>>>>>>>>>>>>>>>>>>>>>> but the HASH does not correspond to any known= bug. >>>>>>>>>>>>>>>>>>>>>>>>>>>>> Please double check the address. >>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>> I see the command but can't find the correspon= ding bug. >>>>>>>>>>>>>>>>>>>>>>>>>>>> The email is sent to syzbot+HASH@syzkaller.ap= pspotmail.com address >>>>>>>>>>>>>>>>>>>>>>>>>>>> but the HASH does not correspond to any known = bug. >>>>>>>>>>>>>>>>>>>>>>>>>>>> Please double check the address. >>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>> I see the command but can't find the correspond= ing bug. >>>>>>>>>>>>>>>>>>>>>>>>>>> The email is sent to syzbot+HASH@syzkaller.app= spotmail.com address >>>>>>>>>>>>>>>>>>>>>>>>>>> but the HASH does not correspond to any known b= ug. >>>>>>>>>>>>>>>>>>>>>>>>>>> Please double check the address. >>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>> I see the command but can't find the correspondi= ng bug. >>>>>>>>>>>>>>>>>>>>>>>>>> The email is sent to syzbot+HASH@syzkaller.apps= potmail.com address >>>>>>>>>>>>>>>>>>>>>>>>>> but the HASH does not correspond to any known bu= g. >>>>>>>>>>>>>>>>>>>>>>>>>> Please double check the address. >>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>> I see the command but can't find the correspondin= g bug. >>>>>>>>>>>>>>>>>>>>>>>>> The email is sent to syzbot+HASH@syzkaller.appsp= otmail.com address >>>>>>>>>>>>>>>>>>>>>>>>> but the HASH does not correspond to any known bug= . >>>>>>>>>>>>>>>>>>>>>>>>> Please double check the address. >>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>> I see the command but can't find the corresponding= bug. >>>>>>>>>>>>>>>>>>>>>>>> The email is sent to syzbot+HASH@syzkaller.appspo= tmail.com address >>>>>>>>>>>>>>>>>>>>>>>> but the HASH does not correspond to any known bug. >>>>>>>>>>>>>>>>>>>>>>>> Please double check the address. >>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>> I see the command but can't find the corresponding = bug. >>>>>>>>>>>>>>>>>>>>>>> The email is sent to syzbot+HASH@syzkaller.appspot= mail.com address >>>>>>>>>>>>>>>>>>>>>>> but the HASH does not correspond to any known bug. >>>>>>>>>>>>>>>>>>>>>>> Please double check the address. >>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>> I see the command but can't find the corresponding b= ug. >>>>>>>>>>>>>>>>>>>>>> The email is sent to syzbot+HASH@syzkaller.appspotm= ail.com address >>>>>>>>>>>>>>>>>>>>>> but the HASH does not correspond to any known bug. >>>>>>>>>>>>>>>>>>>>>> Please double check the address. >>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>> I see the command but can't find the corresponding bu= g. >>>>>>>>>>>>>>>>>>>>> The email is sent to syzbot+HASH@syzkaller.appspotma= il.com address >>>>>>>>>>>>>>>>>>>>> but the HASH does not correspond to any known bug. >>>>>>>>>>>>>>>>>>>>> Please double check the address. >>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>> I see the command but can't find the corresponding bug= . >>>>>>>>>>>>>>>>>>>> The email is sent to syzbot+HASH@syzkaller.appspotmai= l.com address >>>>>>>>>>>>>>>>>>>> but the HASH does not correspond to any known bug. >>>>>>>>>>>>>>>>>>>> Please double check the address. >>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>> I see the command but can't find the corresponding bug. >>>>>>>>>>>>>>>>>>> The email is sent to syzbot+HASH@syzkaller.appspotmail= .com address >>>>>>>>>>>>>>>>>>> but the HASH does not correspond to any known bug. >>>>>>>>>>>>>>>>>>> Please double check the address. >>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>> I see the command but can't find the corresponding bug. >>>>>>>>>>>>>>>>>> The email is sent to syzbot+HASH@syzkaller.appspotmail.= com address >>>>>>>>>>>>>>>>>> but the HASH does not correspond to any known bug. >>>>>>>>>>>>>>>>>> Please double check the address. >>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> I see the command but can't find the corresponding bug. >>>>>>>>>>>>>>>>> The email is sent to syzbot+HASH@syzkaller.appspotmail.c= om address >>>>>>>>>>>>>>>>> but the HASH does not correspond to any known bug. >>>>>>>>>>>>>>>>> Please double check the address. >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> I see the command but can't find the corresponding bug. >>>>>>>>>>>>>>>> The email is sent to syzbot+HASH@syzkaller.appspotmail.co= m address >>>>>>>>>>>>>>>> but the HASH does not correspond to any known bug. >>>>>>>>>>>>>>>> Please double check the address. >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> I see the command but can't find the corresponding bug. >>>>>>>>>>>>>>> The email is sent to syzbot+HASH@syzkaller.appspotmail.com= address >>>>>>>>>>>>>>> but the HASH does not correspond to any known bug. >>>>>>>>>>>>>>> Please double check the address. >>>>>>>>>>>>>>> >>>>>>>>>>>>>> >>>>>>>>>>>>>> I see the command but can't find the corresponding bug. >>>>>>>>>>>>>> The email is sent to syzbot+HASH@syzkaller.appspotmail.com = address >>>>>>>>>>>>>> but the HASH does not correspond to any known bug. >>>>>>>>>>>>>> Please double check the address. >>>>>>>>>>>>>> >>>>>>>>>>>>> >>>>>>>>>>>>> I see the command but can't find the corresponding bug. >>>>>>>>>>>>> The email is sent to syzbot+HASH@syzkaller.appspotmail.com a= ddress >>>>>>>>>>>>> but the HASH does not correspond to any known bug. >>>>>>>>>>>>> Please double check the address. >>>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> I see the command but can't find the corresponding bug. >>>>>>>>>>>> The email is sent to syzbot+HASH@syzkaller.appspotmail.com ad= dress >>>>>>>>>>>> but the HASH does not correspond to any known bug. >>>>>>>>>>>> Please double check the address. >>>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> I see the command but can't find the corresponding bug. >>>>>>>>>>> The email is sent to syzbot+HASH@syzkaller.appspotmail.com add= ress >>>>>>>>>>> but the HASH does not correspond to any known bug. >>>>>>>>>>> Please double check the address. >>>>>>>>>>> >>>>>>>>>> >>>>>>>>>> I see the command but can't find the corresponding bug. >>>>>>>>>> The email is sent to syzbot+HASH@syzkaller.appspotmail.com addr= ess >>>>>>>>>> but the HASH does not correspond to any known bug. >>>>>>>>>> Please double check the address. >>>>>>>>>> >>>>>>>>> >>>>>>>>> I see the command but can't find the corresponding bug. >>>>>>>>> The email is sent to syzbot+HASH@syzkaller.appspotmail.com addre= ss >>>>>>>>> but the HASH does not correspond to any known bug. >>>>>>>>> Please double check the address. >>>>>>>>> >>>>>>>> >>>>>>>> I see the command but can't find the corresponding bug. >>>>>>>> The email is sent to syzbot+HASH@syzkaller.appspotmail.com addres= s >>>>>>>> but the HASH does not correspond to any known bug. >>>>>>>> Please double check the address. >>>>>>>> >>>>>>> >>>>>>> I see the command but can't find the corresponding bug. >>>>>>> The email is sent to syzbot+HASH@syzkaller.appspotmail.com address >>>>>>> but the HASH does not correspond to any known bug. >>>>>>> Please double check the address. >>>>>>> >>>>>> >>>>>> I see the command but can't find the corresponding bug. >>>>>> The email is sent to syzbot+HASH@syzkaller.appspotmail.com address >>>>>> but the HASH does not correspond to any known bug. >>>>>> Please double check the address. >>>>>> >>>>> >>>>> I see the command but can't find the corresponding bug. >>>>> The email is sent to syzbot+HASH@syzkaller.appspotmail.com address >>>>> but the HASH does not correspond to any known bug. >>>>> Please double check the address. >>>>> >>>> >>>> I see the command but can't find the corresponding bug. >>>> The email is sent to syzbot+HASH@syzkaller.appspotmail.com address >>>> but the HASH does not correspond to any known bug. >>>> Please double check the address. >>>> >>> >>> I see the command but can't find the corresponding bug. >>> The email is sent to syzbot+HASH@syzkaller.appspotmail.com address >>> but the HASH does not correspond to any known bug. >>> Please double check the address. >>> >> >> I see the command but can't find the corresponding bug. >> The email is sent to syzbot+HASH@syzkaller.appspotmail.com address >> but the HASH does not correspond to any known bug. >> Please double check the address. >> > > I see the command but can't find the corresponding bug. > The email is sent to syzbot+HASH@syzkaller.appspotmail.com address > but the HASH does not correspond to any known bug. > Please double check the address. > I see the command but can't find the corresponding bug. The email is sent to syzbot+HASH@syzkaller.appspotmail.com address but the HASH does not correspond to any known bug. Please double check the address.