From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oa1-f72.google.com (mail-oa1-f72.google.com [209.85.160.72]) (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 7B167409609 for ; Thu, 28 May 2026 15:12:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.160.72 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779981178; cv=none; b=BrkFk7qpw0WEaESXMsJ/uPjID0CS3RAei3TuIC6POO3En2lVepOT0742+cNxWQJKFAFOsrFx8RMm5mZMx2wbj+Li2JmZtbN+3mpJvX8X2Vxt1YYXMevVUErVVo1Vj/aAXENh6BES4Vv7ZiE0rJG6dnSTClh2VMFIfAFEQNJ+5ys= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779981178; c=relaxed/simple; bh=hTg4IpMSOtZCXw7uW7OOZAeGUwXWE2/dIYlLx/BWaow=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To:Cc: Content-Type; b=sCvKV+9Fjoo8TybQNdKtaeChkQttD4sCUS8f1W14KsiWKiDYinhRUX20EwpdPSWEA8ZAFrQQXabcgu1YpR07uBqVNIQYTDt+tI7OlCc/I/Q02Ul0410vhLZjXRIRLSVEs/VABL0K1MxmdQq/b+e2giN444rBeHHyOLZaAexgLC8= 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=209.85.160.72 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-oa1-f72.google.com with SMTP id 586e51a60fabf-43b73cd2c76so3768234fac.2 for ; Thu, 28 May 2026 08:12:58 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1779981176; x=1780585976; 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=7QjhHdoTS4J/hHOadizMfFe3UlmLRBs0k+8D9BRwr/k=; b=UjdmA3N/utKz+rtCP10dFaatjkiGwzMZUUeUo9g/YAI5Z+sBfkGWm4K1l/NXq2b/EX 7J4hhA1w8ehqTPLksKOeQFKKP2v1lWrvYSyl6HGIl2p7BUjeM8VoX2OB+eCaUoY4GLkQ RLLY5p1xG29HeFwQ4c+Nyr9JOiCttLVD623kVlUncyxxFnXu+aQH0y0kS1cqj20GSUkU pWvBZ2QueWHQfMG6kGrHlMqqEN5PXB9xYCbKWFFtywoINyUkY4pxk2uOiQTlVb1R9dER O6yPnCzdtn6MQGT+lHyidOffM7cpSl/r5yw7qeZHW0GciIOJn/6gX6zoihvZvjdgZvfZ QKaQ== X-Forwarded-Encrypted: i=1; AFNElJ81/84tt4m1zzVC9u1BuCW9m/zm8xgJBHKIK+RPIEpdYRVS0utbTPyILlJp7H+T7WEh21z8qwo=@lists.linux.dev X-Gm-Message-State: AOJu0YzfpVOvFgr3vj4DsMopL09nFR2uK5fUrtlnpCInG3M8EDHD4LD3 mcyEWaGtsMepQda8WdTxWKJWhtKsjMb3zZBusG7BC1LBY2ELmh83cvGXIguchpVeBaw+tJNr/fS Ssy3kwfoZeZ4mFhKMzhKvkG8Clcd4yjul5TOyaxSoZJcBbDacTK0E3xbkPbs= Precedence: bulk X-Mailing-List: syzbot@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:605:b0:69d:eccd:e5a7 with SMTP id 006d021491bc7-69deccde82emr3053803eaf.1.1779979645097; Thu, 28 May 2026 07:47:25 -0700 (PDT) Date: Thu, 28 May 2026 07:47:25 -0700 In-Reply-To: <6a18557c.222db38e.c0a93.0382.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a18557d.b6d9d2ce.2aaec5.03cf.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. Contact= syzkaller@googlegroups.com. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> On Thu, May 28, 2026 at 4:39=E2=80=AF= PM syzbot ci >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> syzbot ci has tested the following s= eries >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> [v1] netlink: fix skb refcount leak = when dump start fails >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> https://lore.kernel.org/all/20260528= 073614.1169858-1-vulab@iscas.ac.cn >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> * [PATCH] netlink: fix skb refcount = 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 Write i= n sk_skb_reason_drop >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Full report is available here: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> https://ci.syzbot.org/series/8ed6f41= d-0d02-4f1f-a7be-cc639c2b4cfd >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> *** >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> KASAN: slab-use-after-free Read in n= l80211_prepare_wdev_dump >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> tree: net >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> URL: https://kernel.googlesour= ce.com/pub/scm/linux/kernel/git/netdev/net.git >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> base: 18014147d3ee7831dce53fe65= d7fc8d428b02552 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> arch: amd64 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> compiler: Debian clang version 21.1= .8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.= 1.8 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> config: https://ci.syzbot.org/bui= lds/90c5185d-0dad-4c34-a563-4253ebb12eb2/config >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> syz repro: https://ci.syzbot.org/fin= dings/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 in _= _nlmsg_parse include/net/netlink.h:784 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> BUG: KASAN: slab-use-after-free in n= lmsg_parse_deprecated include/net/netlink.h:830 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> BUG: KASAN: slab-use-after-free in n= l80211_prepare_wdev_dump+0x634/0x680 net/wireless/nl80211.c:1245 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Read of size 4 at addr ffff88816e172= d80 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/dump_= stack.c:120 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> print_address_description+0x55/0x1e= 0 mm/kasan/report.c:378 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> print_report+0x58/0x70 mm/kasan/rep= ort.c:482 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_report+0x117/0x150 mm/kasan/r= eport.c:595 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __nlmsg_parse include/net/netlink.h= :784 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> nlmsg_parse_deprecated include/net/= netlink.h:830 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> nl80211_prepare_wdev_dump+0x634/0x6= 80 net/wireless/nl80211.c:1245 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> nl80211_dump_station+0x186/0xdb0 ne= t/wireless/nl80211.c:8216 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> genl_dumpit+0x10b/0x1b0 net/netlink= /genetlink.c:1026 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> netlink_dump+0x702/0xe10 net/netlin= k/af_netlink.c:2325 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> netlink_recvmsg+0x690/0xa50 net/net= link/af_netlink.c:1976 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> sock_recvmsg_nosec net/socket.c:113= 7 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> sock_recvmsg+0x172/0x1b0 net/socket= .c:1159 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __sys_recvfrom+0x240/0x3c0 net/sock= et.c:2315 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __do_sys_recvfrom net/socket.c:2330= [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __se_sys_recvfrom net/socket.c:2326= [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __x64_sys_recvfrom+0xde/0x100 net/s= ocket.c:2326 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_x64 arch/x86/entry/sysca= ll_64.c:63 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_64+0x15f/0xf80 arch/x86/= entry/syscall_64.c:94 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> entry_SYSCALL_64_after_hwframe+0x77= /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 00 0= 0 48 83 ec 08 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> RSP: 002b:00007fd6424b5e88 EFLAGS: 0= 0000246 ORIG_RAX: 000000000000002d >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> RAX: ffffffffffffffda RBX: 00007fd64= 24b76c0 RCX: 00007fd64155d68e >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> RDX: 0000000000001000 RSI: 00007fd64= 24b6000 RDI: 0000000000000003 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> RBP: 0000000000000000 R08: 000000000= 0000000 R09: 0000000000000000 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> R10: 0000000000000000 R11: 000000000= 0000246 R12: 0000000000000003 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> R13: 00007fd6424b5f58 R14: 00007fd64= 24b6000 R15: 0000000000000000 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Allocated by task 5813: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_save_stack mm/kasan/common.c:= 57 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_save_track+0x3e/0x80 mm/kasan= /common.c:78 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> unpoison_slab_object mm/kasan/commo= n.c:340 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __kasan_slab_alloc+0x6c/0x80 mm/kas= an/common.c:366 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_slab_alloc include/linux/kasa= n.h:253 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> slab_post_alloc_hook mm/slub.c:4569= [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> slab_alloc_node mm/slub.c:4898 [inl= ine] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kmem_cache_alloc_node_noprof+0x384/= 0x690 mm/slub.c:4950 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kmalloc_reserve net/core/skbuff.c:6= 13 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __alloc_skb+0x27d/0x7d0 net/core/sk= buff.c:713 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> netlink_sendmsg+0x5d4/0xb40 net/net= link/af_netlink.c:1869 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> sock_sendmsg_nosec net/socket.c:787= [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __sock_sendmsg net/socket.c:802 [in= line] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ____sys_sendmsg+0x972/0x9f0 net/soc= ket.c:2698 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ___sys_sendmsg+0x2a5/0x360 net/sock= et.c:2752 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __sys_sendmsg net/socket.c:2784 [in= line] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __do_sys_sendmsg net/socket.c:2789 = [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __se_sys_sendmsg net/socket.c:2787 = [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __x64_sys_sendmsg+0x1bd/0x2a0 net/s= ocket.c:2787 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_x64 arch/x86/entry/sysca= ll_64.c:63 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_64+0x15f/0xf80 arch/x86/= entry/syscall_64.c:94 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> entry_SYSCALL_64_after_hwframe+0x77= /0x7f >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Freed by task 5813: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_save_stack mm/kasan/common.c:= 57 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_save_track+0x3e/0x80 mm/kasan= /common.c:78 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_save_free_info+0x46/0x50 mm/k= asan/generic.c:584 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> poison_slab_object mm/kasan/common.= c:253 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __kasan_slab_free+0x5c/0x80 mm/kasa= n/common.c:285 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_slab_free include/linux/kasan= .h:235 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> slab_free_hook mm/slub.c:2689 [inli= ne] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> slab_free mm/slub.c:6250 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kfree+0x1c5/0x640 mm/slub.c:6565 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> skb_kfree_head net/core/skbuff.c:10= 75 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> skb_free_head net/core/skbuff.c:108= 7 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> skb_release_data+0x828/0xa60 net/co= re/skbuff.c:1114 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> skb_release_all net/core/skbuff.c:1= 189 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __kfree_skb+0x5d/0x210 net/core/skb= uff.c:1203 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> netlink_unicast_kernel net/netlink/= af_netlink.c:1319 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> netlink_unicast+0x764/0x8e0 net/net= link/af_netlink.c:1344 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> netlink_sendmsg+0x813/0xb40 net/net= link/af_netlink.c:1894 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> sock_sendmsg_nosec net/socket.c:787= [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __sock_sendmsg net/socket.c:802 [in= line] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ____sys_sendmsg+0x972/0x9f0 net/soc= ket.c:2698 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ___sys_sendmsg+0x2a5/0x360 net/sock= et.c:2752 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __sys_sendmsg net/socket.c:2784 [in= line] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __do_sys_sendmsg net/socket.c:2789 = [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __se_sys_sendmsg net/socket.c:2787 = [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __x64_sys_sendmsg+0x1bd/0x2a0 net/s= ocket.c:2787 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_x64 arch/x86/entry/sysca= ll_64.c:63 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_64+0x15f/0xf80 arch/x86/= entry/syscall_64.c:94 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> entry_SYSCALL_64_after_hwframe+0x77= /0x7f >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> The buggy address belongs to the obj= ect at ffff88816e172d80 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> which belongs to the cache skbuff_s= mall_head of size 704 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> The buggy address is located 0 bytes= inside of >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> freed 704-byte region [ffff88816e17= 2d80, ffff88816e173040) >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> The buggy address belongs to the phy= sical page: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> page: refcount:0 mapcount:0 mapping:= 0000000000000000 index:0x0 pfn:0x16e170 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> head: order:2 mapcount:0 entire_mapc= ount:0 nr_pages_mapped:0 pincount:0 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> flags: 0x57ff00000000040(head|node= =3D1|zone=3D2|lastcpupid=3D0x7ff) >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> page_type: f5(slab) >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> raw: 057ff00000000040 ffff8881604151= 40 dead000000000100 dead000000000122 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> raw: 0000000000000000 00000008001200= 12 00000000f5000000 0000000000000000 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> head: 057ff00000000040 ffff888160415= 140 dead000000000100 dead000000000122 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> head: 0000000000000000 0000000800120= 012 00000000f5000000 0000000000000000 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> head: 057ff00000000002 fffffffffffff= f01 00000000ffffffff 00000000ffffffff >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> head: ffffffffffffffff 0000000000000= 000 00000000ffffffff 0000000000000004 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> page dumped because: kasan: bad acce= ss detected >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> page_owner tracks the page as alloca= ted >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> page last allocated via order 2, mig= ratetype Unmovable, gfp_mask 0xd2820(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|= __GFP_COMP|__GFP_NOMEMALLOC), pid 5530, tgid 5530 (sshd), ts 47735478218, f= ree_ts 34702748767 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> set_page_owner include/linux/page_o= wner.h:32 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> post_alloc_hook+0x22d/0x280 mm/page= _alloc.c:1858 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> prep_new_page mm/page_alloc.c:1866 = [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> get_page_from_freelist+0x24ba/0x254= 0 mm/page_alloc.c:3946 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __alloc_frozen_pages_noprof+0x18d/0= x380 mm/page_alloc.c:5226 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> alloc_slab_page mm/slub.c:3278 [inl= ine] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> allocate_slab+0x77/0x660 mm/slub.c:= 3467 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> new_slab mm/slub.c:3525 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> refill_objects+0x339/0x3d0 mm/slub.= c:7271 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> refill_sheaf mm/slub.c:2816 [inline= ] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __pcs_replace_empty_main+0x321/0x72= 0 mm/slub.c:4651 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> alloc_from_pcs mm/slub.c:4749 [inli= ne] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> slab_alloc_node mm/slub.c:4883 [inl= ine] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kmem_cache_alloc_node_noprof+0x441/= 0x690 mm/slub.c:4950 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kmalloc_reserve net/core/skbuff.c:6= 13 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __alloc_skb+0x27d/0x7d0 net/core/sk= buff.c:713 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> alloc_skb include/linux/skbuff.h:13= 83 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __tcp_send_ack+0xae/0x4f0 net/ipv4/= tcp_output.c:4473 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> tcp_cleanup_rbuf net/ipv4/tcp.c:161= 2 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> tcp_recvmsg_locked+0x2dfa/0x3720 ne= t/ipv4/tcp.c:2916 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> tcp_recvmsg+0x205/0x7e0 net/ipv4/tc= p.c:2945 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> sock_recvmsg_nosec net/socket.c:113= 7 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> sock_recvmsg+0x155/0x1b0 net/socket= .c:1159 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> sock_read_iter+0x251/0x320 net/sock= et.c:1229 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> new_sync_read fs/read_write.c:493 [= inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> vfs_read+0x582/0xa70 fs/read_write.= c:574 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ksys_read+0x150/0x270 fs/read_write= .c:717 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_x64 arch/x86/entry/sysca= ll_64.c:63 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_64+0x15f/0xf80 arch/x86/= entry/syscall_64.c:94 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> page last free pid 5059 tgid 5059 st= ack trace: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> reset_page_owner include/linux/page= _owner.h:25 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __free_pages_prepare mm/page_alloc.= c:1402 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __free_frozen_pages+0xbc7/0xd30 mm/= page_alloc.c:2943 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __slab_free+0x274/0x2c0 mm/slub.c:5= 612 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> qlink_free mm/kasan/quarantine.c:16= 3 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> qlist_free_all+0x99/0x100 mm/kasan/= quarantine.c:179 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_quarantine_reduce+0x148/0x160= mm/kasan/quarantine.c:286 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __kasan_slab_alloc+0x22/0x80 mm/kas= an/common.c:350 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_slab_alloc include/linux/kasa= n.h:253 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> slab_post_alloc_hook mm/slub.c:4569= [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> slab_alloc_node mm/slub.c:4898 [inl= ine] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __do_kmalloc_node mm/slub.c:5294 [i= nline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __kvmalloc_node_noprof+0x4d7/0x8a0 = mm/slub.c:6832 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> seq_buf_alloc fs/seq_file.c:39 [inl= ine] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> seq_read_iter+0x202/0xe10 fs/seq_fi= le.c:211 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> new_sync_read fs/read_write.c:493 [= inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> vfs_read+0x582/0xa70 fs/read_write.= c:574 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ksys_read+0x150/0x270 fs/read_write= .c:717 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_x64 arch/x86/entry/sysca= ll_64.c:63 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_64+0x15f/0xf80 arch/x86/= entry/syscall_64.c:94 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> entry_SYSCALL_64_after_hwframe+0x77= /0x7f >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Memory state around the buggy addres= s: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 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 in x= frm_dump_sa_done >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> tree: net >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> URL: https://kernel.googlesour= ce.com/pub/scm/linux/kernel/git/netdev/net.git >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> base: 18014147d3ee7831dce53fe65= d7fc8d428b02552 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> arch: amd64 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> compiler: Debian clang version 21.1= .8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.= 1.8 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> config: https://ci.syzbot.org/bui= lds/90c5185d-0dad-4c34-a563-4253ebb12eb2/config >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> syz repro: https://ci.syzbot.org/fin= dings/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 in x= frm_dump_sa_done+0x54/0xd0 net/xfrm/xfrm_user.c:1491 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Read of size 8 at addr ffff888167305= 398 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/dump_= stack.c:120 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> print_address_description+0x55/0x1e= 0 mm/kasan/report.c:378 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> print_report+0x58/0x70 mm/kasan/rep= ort.c:482 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_report+0x117/0x150 mm/kasan/r= eport.c:595 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> xfrm_dump_sa_done+0x54/0xd0 net/xfr= m/xfrm_user.c:1491 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> netlink_release+0x12c8/0x1ad0 net/n= etlink/af_netlink.c:768 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __sock_release net/socket.c:722 [in= line] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> sock_close+0xc3/0x240 net/socket.c:= 1514 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __fput+0x44f/0xa60 fs/file_table.c:= 510 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> task_work_run+0x1d9/0x270 kernel/ta= sk_work.c:233 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> resume_user_mode_work include/linux= /resume_user_mode.h:50 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __exit_to_user_mode_loop kernel/ent= ry/common.c:67 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> exit_to_user_mode_loop+0xf3/0x4d0 k= ernel/entry/common.c:98 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __exit_to_user_mode_prepare include= /linux/irq-entry-common.h:207 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> syscall_exit_to_user_mode_prepare i= nclude/linux/irq-entry-common.h:230 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> syscall_exit_to_user_mode include/l= inux/entry-common.h:318 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_64+0x33e/0xf80 arch/x86/= entry/syscall_64.c:100 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> entry_SYSCALL_64_after_hwframe+0x77= /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 f7 d= 8 64 89 01 48 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> RSP: 002b:00007fff8a02cc38 EFLAGS: 0= 0000246 ORIG_RAX: 00000000000001b4 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> RAX: 0000000000000000 RBX: 00007fe50= c217da0 RCX: 00007fe50bf9ce59 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> RDX: 0000000000000000 RSI: 000000000= 000001e RDI: 0000000000000003 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> RBP: 00007fe50c217da0 R08: 00007fe50= c216038 R09: 0000000000000000 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> R10: 000000000003fdd4 R11: 000000000= 0000246 R12: 0000000000010018 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> R13: 00007fe50c215fac R14: 00007fe50= c215fa8 R15: 00007fe50c215fa0 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Allocated by task 5813: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_save_stack mm/kasan/common.c:= 57 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_save_track+0x3e/0x80 mm/kasan= /common.c:78 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> unpoison_slab_object mm/kasan/commo= n.c:340 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __kasan_slab_alloc+0x6c/0x80 mm/kas= an/common.c:366 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_slab_alloc include/linux/kasa= n.h:253 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> slab_post_alloc_hook mm/slub.c:4569= [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> slab_alloc_node mm/slub.c:4898 [inl= ine] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kmem_cache_alloc_node_noprof+0x384/= 0x690 mm/slub.c:4950 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __alloc_skb+0x1d0/0x7d0 net/core/sk= buff.c:702 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> netlink_sendmsg+0x5d4/0xb40 net/net= link/af_netlink.c:1869 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> sock_sendmsg_nosec net/socket.c:787= [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __sock_sendmsg net/socket.c:802 [in= line] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ____sys_sendmsg+0x972/0x9f0 net/soc= ket.c:2698 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ___sys_sendmsg+0x2a5/0x360 net/sock= et.c:2752 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __sys_sendmsg net/socket.c:2784 [in= line] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __do_sys_sendmsg net/socket.c:2789 = [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __se_sys_sendmsg net/socket.c:2787 = [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __x64_sys_sendmsg+0x1bd/0x2a0 net/s= ocket.c:2787 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_x64 arch/x86/entry/sysca= ll_64.c:63 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_64+0x15f/0xf80 arch/x86/= entry/syscall_64.c:94 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> entry_SYSCALL_64_after_hwframe+0x77= /0x7f >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Freed by task 5813: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_save_stack mm/kasan/common.c:= 57 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_save_track+0x3e/0x80 mm/kasan= /common.c:78 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_save_free_info+0x46/0x50 mm/k= asan/generic.c:584 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> poison_slab_object mm/kasan/common.= c:253 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __kasan_slab_free+0x5c/0x80 mm/kasa= n/common.c:285 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_slab_free include/linux/kasan= .h:235 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> slab_free_hook mm/slub.c:2689 [inli= ne] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> slab_free mm/slub.c:6250 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kmem_cache_free+0x182/0x650 mm/slub= .c:6377 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> netlink_unicast_kernel net/netlink/= af_netlink.c:1319 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> netlink_unicast+0x764/0x8e0 net/net= link/af_netlink.c:1344 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> netlink_sendmsg+0x813/0xb40 net/net= link/af_netlink.c:1894 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> sock_sendmsg_nosec net/socket.c:787= [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __sock_sendmsg net/socket.c:802 [in= line] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ____sys_sendmsg+0x972/0x9f0 net/soc= ket.c:2698 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ___sys_sendmsg+0x2a5/0x360 net/sock= et.c:2752 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __sys_sendmsg net/socket.c:2784 [in= line] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __do_sys_sendmsg net/socket.c:2789 = [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __se_sys_sendmsg net/socket.c:2787 = [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __x64_sys_sendmsg+0x1bd/0x2a0 net/s= ocket.c:2787 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_x64 arch/x86/entry/sysca= ll_64.c:63 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_64+0x15f/0xf80 arch/x86/= entry/syscall_64.c:94 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> entry_SYSCALL_64_after_hwframe+0x77= /0x7f >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> The buggy address belongs to the obj= ect at ffff888167305380 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> which belongs to the cache skbuff_h= ead_cache of size 240 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> The buggy address is located 24 byte= s inside of >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> freed 240-byte region [ffff88816730= 5380, ffff888167305470) >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> The buggy address belongs to the phy= sical page: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> page: refcount:0 mapcount:0 mapping:= 0000000000000000 index:0x0 pfn:0x167304 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> head: order:1 mapcount:0 entire_mapc= ount:0 nr_pages_mapped:0 pincount:0 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> flags: 0x57ff00000000040(head|node= =3D1|zone=3D2|lastcpupid=3D0x7ff) >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> page_type: f5(slab) >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> raw: 057ff00000000040 ffff888160416d= c0 dead000000000100 dead000000000122 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> raw: 0000000000000000 00000008001500= 15 00000000f5000000 0000000000000000 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> head: 057ff00000000040 ffff888160416= dc0 dead000000000100 dead000000000122 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> head: 0000000000000000 0000000800150= 015 00000000f5000000 0000000000000000 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> head: 057ff00000000001 fffffffffffff= f81 00000000ffffffff 00000000ffffffff >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> head: ffffffffffffffff 0000000000000= 000 00000000ffffffff 0000000000000002 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> page dumped because: kasan: bad acce= ss detected >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> page_owner tracks the page as alloca= ted >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> page last allocated via order 1, mig= ratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_N= ORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5813, tgid 5812 (syz.0.17), ts 648= 59679564, free_ts 63312613640 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> set_page_owner include/linux/page_o= wner.h:32 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> post_alloc_hook+0x22d/0x280 mm/page= _alloc.c:1858 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> prep_new_page mm/page_alloc.c:1866 = [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> get_page_from_freelist+0x24ba/0x254= 0 mm/page_alloc.c:3946 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __alloc_frozen_pages_noprof+0x18d/0= x380 mm/page_alloc.c:5226 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> alloc_slab_page mm/slub.c:3278 [inl= ine] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> allocate_slab+0x77/0x660 mm/slub.c:= 3467 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> new_slab mm/slub.c:3525 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> refill_objects+0x339/0x3d0 mm/slub.= c:7271 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> refill_sheaf mm/slub.c:2816 [inline= ] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __pcs_replace_empty_main+0x321/0x72= 0 mm/slub.c:4651 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> alloc_from_pcs mm/slub.c:4749 [inli= ne] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> slab_alloc_node mm/slub.c:4883 [inl= ine] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kmem_cache_alloc_node_noprof+0x441/= 0x690 mm/slub.c:4950 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __alloc_skb+0x1d0/0x7d0 net/core/sk= buff.c:702 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> netlink_sendmsg+0x5d4/0xb40 net/net= link/af_netlink.c:1869 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> sock_sendmsg_nosec net/socket.c:787= [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __sock_sendmsg net/socket.c:802 [in= line] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ____sys_sendmsg+0x972/0x9f0 net/soc= ket.c:2698 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ___sys_sendmsg+0x2a5/0x360 net/sock= et.c:2752 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __sys_sendmsg net/socket.c:2784 [in= line] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __do_sys_sendmsg net/socket.c:2789 = [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __se_sys_sendmsg net/socket.c:2787 = [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __x64_sys_sendmsg+0x1bd/0x2a0 net/s= ocket.c:2787 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_x64 arch/x86/entry/sysca= ll_64.c:63 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_64+0x15f/0xf80 arch/x86/= entry/syscall_64.c:94 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> entry_SYSCALL_64_after_hwframe+0x77= /0x7f >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> page last free pid 15 tgid 15 stack = trace: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> reset_page_owner include/linux/page= _owner.h:25 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __free_pages_prepare mm/page_alloc.= c:1402 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __free_frozen_pages+0xbc7/0xd30 mm/= page_alloc.c:2943 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> rcu_do_batch kernel/rcu/tree.c:2617= [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> rcu_core+0x7cd/0x1070 kernel/rcu/tr= ee.c:2869 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> handle_softirqs+0x22a/0x840 kernel/= softirq.c:622 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> run_ksoftirqd+0x36/0x60 kernel/soft= irq.c:1076 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> smpboot_thread_fn+0x541/0xa50 kerne= l/smpboot.c:160 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kthread+0x389/0x470 kernel/kthread.= c:436 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ret_from_fork+0x514/0xb70 arch/x86/= kernel/process.c:158 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ret_from_fork_asm+0x1a/0x30 arch/x8= 6/entry/entry_64.S:245 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Memory state around the buggy addres= s: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 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.googlesour= ce.com/pub/scm/linux/kernel/git/netdev/net.git >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> base: 18014147d3ee7831dce53fe65= d7fc8d428b02552 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> arch: amd64 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> compiler: Debian clang version 21.1= .8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.= 1.8 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> config: https://ci.syzbot.org/bui= lds/90c5185d-0dad-4c34-a563-4253ebb12eb2/config >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> syz repro: https://ci.syzbot.org/fin= dings/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 in i= nstrument_atomic_read_write include/linux/instrumented.h:112 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> BUG: KASAN: slab-use-after-free in a= tomic_fetch_sub_release include/linux/atomic/atomic-instrumented.h:400 [inl= ine] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> BUG: KASAN: slab-use-after-free in _= _refcount_sub_and_test include/linux/refcount.h:389 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> BUG: KASAN: slab-use-after-free in _= _refcount_dec_and_test include/linux/refcount.h:432 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> BUG: KASAN: slab-use-after-free in r= efcount_dec_and_test include/linux/refcount.h:450 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> BUG: KASAN: slab-use-after-free in s= kb_unref include/linux/skbuff.h:1292 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> BUG: KASAN: slab-use-after-free in _= _sk_skb_reason_drop net/core/skbuff.c:1212 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> BUG: KASAN: slab-use-after-free in s= k_skb_reason_drop+0x37/0x110 net/core/skbuff.c:1240 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Write of size 4 at addr ffff8881178e= fee4 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/dump_= stack.c:120 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> print_address_description+0x55/0x1e= 0 mm/kasan/report.c:378 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> print_report+0x58/0x70 mm/kasan/rep= ort.c:482 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_report+0x117/0x150 mm/kasan/r= eport.c:595 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> check_region_inline mm/kasan/generi= c.c:-1 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_check_range+0x264/0x2c0 mm/ka= san/generic.c:200 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> instrument_atomic_read_write includ= e/linux/instrumented.h:112 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> atomic_fetch_sub_release include/li= nux/atomic/atomic-instrumented.h:400 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __refcount_sub_and_test include/lin= ux/refcount.h:389 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __refcount_dec_and_test include/lin= ux/refcount.h:432 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> refcount_dec_and_test include/linux= /refcount.h:450 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> skb_unref include/linux/skbuff.h:12= 92 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __sk_skb_reason_drop net/core/skbuf= f.c:1212 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> sk_skb_reason_drop+0x37/0x110 net/c= ore/skbuff.c:1240 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kfree_skb_reason include/linux/skbu= ff.h:1322 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kfree_skb include/linux/skbuff.h:13= 31 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> netlink_release+0x133a/0x1ad0 net/n= etlink/af_netlink.c:770 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __sock_release net/socket.c:722 [in= line] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> sock_close+0xc3/0x240 net/socket.c:= 1514 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __fput+0x44f/0xa60 fs/file_table.c:= 510 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> task_work_run+0x1d9/0x270 kernel/ta= sk_work.c:233 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> resume_user_mode_work include/linux= /resume_user_mode.h:50 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __exit_to_user_mode_loop kernel/ent= ry/common.c:67 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> exit_to_user_mode_loop+0xf3/0x4d0 k= ernel/entry/common.c:98 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __exit_to_user_mode_prepare include= /linux/irq-entry-common.h:207 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> syscall_exit_to_user_mode_prepare i= nclude/linux/irq-entry-common.h:230 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> syscall_exit_to_user_mode include/l= inux/entry-common.h:318 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_64+0x33e/0xf80 arch/x86/= entry/syscall_64.c:100 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> entry_SYSCALL_64_after_hwframe+0x77= /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 f7 d= 8 64 89 01 48 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> RSP: 002b:00007fff722ecbf8 EFLAGS: 0= 0000246 ORIG_RAX: 00000000000001b4 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> RAX: 0000000000000000 RBX: 00007fff7= 22ecce0 RCX: 00007fd4d139ce59 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> RDX: 0000000000000000 RSI: 000000000= 000001e RDI: 0000000000000003 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> RBP: 0000000000012825 R08: 000000000= 0000001 R09: 0000000000000000 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> R10: 0000001b32e20000 R11: 000000000= 0000246 R12: 00007fff722ecd20 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> R13: 00007fd4d1615fac R14: 000000000= 0012859 R15: 00007fd4d1615fa0 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Allocated by task 5874: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_save_stack mm/kasan/common.c:= 57 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_save_track+0x3e/0x80 mm/kasan= /common.c:78 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> unpoison_slab_object mm/kasan/commo= n.c:340 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __kasan_mempool_unpoison_object+0xa= 3/0x130 mm/kasan/common.c:564 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_mempool_unpoison_object inclu= de/linux/kasan.h:391 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> napi_skb_cache_get+0x3c8/0x780 net/= core/skbuff.c:306 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __alloc_skb+0x19a/0x7d0 net/core/sk= buff.c:696 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> netlink_sendmsg+0x5d4/0xb40 net/net= link/af_netlink.c:1869 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> sock_sendmsg_nosec net/socket.c:787= [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __sock_sendmsg net/socket.c:802 [in= line] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __sys_sendto+0x672/0x710 net/socket= .c:2265 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __do_sys_sendto net/socket.c:2272 [= inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __se_sys_sendto net/socket.c:2268 [= inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __x64_sys_sendto+0xde/0x100 net/soc= ket.c:2268 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_x64 arch/x86/entry/sysca= ll_64.c:63 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_64+0x15f/0xf80 arch/x86/= entry/syscall_64.c:94 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> entry_SYSCALL_64_after_hwframe+0x77= /0x7f >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Freed by task 5874: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_save_stack mm/kasan/common.c:= 57 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_save_track+0x3e/0x80 mm/kasan= /common.c:78 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_save_free_info+0x46/0x50 mm/k= asan/generic.c:584 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> poison_slab_object mm/kasan/common.= c:253 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __kasan_slab_free+0x5c/0x80 mm/kasa= n/common.c:285 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kasan_slab_free include/linux/kasan= .h:235 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> slab_free_hook mm/slub.c:2689 [inli= ne] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> slab_free mm/slub.c:6250 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kmem_cache_free+0x182/0x650 mm/slub= .c:6377 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> netlink_unicast_kernel net/netlink/= af_netlink.c:1319 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> netlink_unicast+0x764/0x8e0 net/net= link/af_netlink.c:1344 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> netlink_sendmsg+0x813/0xb40 net/net= link/af_netlink.c:1894 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> sock_sendmsg_nosec net/socket.c:787= [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __sock_sendmsg net/socket.c:802 [in= line] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __sys_sendto+0x672/0x710 net/socket= .c:2265 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __do_sys_sendto net/socket.c:2272 [= inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __se_sys_sendto net/socket.c:2268 [= inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __x64_sys_sendto+0xde/0x100 net/soc= ket.c:2268 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_x64 arch/x86/entry/sysca= ll_64.c:63 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_64+0x15f/0xf80 arch/x86/= entry/syscall_64.c:94 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> entry_SYSCALL_64_after_hwframe+0x77= /0x7f >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> The buggy address belongs to the obj= ect at ffff8881178efe00 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> which belongs to the cache skbuff_h= ead_cache of size 240 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> The buggy address is located 228 byt= es inside of >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> freed 240-byte region [ffff8881178e= fe00, ffff8881178efef0) >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> The buggy address belongs to the phy= sical page: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> page: refcount:0 mapcount:0 mapping:= 0000000000000000 index:0x0 pfn:0x1178ee >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> head: order:1 mapcount:0 entire_mapc= ount:0 nr_pages_mapped:0 pincount:0 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> flags: 0x17ff00000000040(head|node= =3D0|zone=3D2|lastcpupid=3D0x7ff) >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> page_type: f5(slab) >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> raw: 017ff00000000040 ffff888160416c= 80 dead000000000122 0000000000000000 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> raw: 0000000000000000 00000008001500= 15 00000000f5000000 0000000000000000 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> head: 017ff00000000040 ffff888160416= c80 dead000000000122 0000000000000000 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> head: 0000000000000000 0000000800150= 015 00000000f5000000 0000000000000000 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> head: 017ff00000000001 fffffffffffff= f81 00000000ffffffff 00000000ffffffff >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> head: ffffffffffffffff 0000000000000= 000 00000000ffffffff 0000000000000002 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> page dumped because: kasan: bad acce= ss detected >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> page_owner tracks the page as alloca= ted >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> page last allocated via order 1, mig= ratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_N= ORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5050, tgid 5050 (klogd), ts 758872= 65953, free_ts 75876344896 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> set_page_owner include/linux/page_o= wner.h:32 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> post_alloc_hook+0x22d/0x280 mm/page= _alloc.c:1858 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> prep_new_page mm/page_alloc.c:1866 = [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> get_page_from_freelist+0x24ba/0x254= 0 mm/page_alloc.c:3946 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __alloc_frozen_pages_noprof+0x18d/0= x380 mm/page_alloc.c:5226 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> alloc_slab_page mm/slub.c:3278 [inl= ine] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> allocate_slab+0x77/0x660 mm/slub.c:= 3467 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> new_slab mm/slub.c:3525 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> refill_objects+0x339/0x3d0 mm/slub.= c:7271 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> refill_sheaf mm/slub.c:2816 [inline= ] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __pcs_replace_empty_main+0x321/0x72= 0 mm/slub.c:4651 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> alloc_from_pcs mm/slub.c:4749 [inli= ne] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> slab_alloc_node mm/slub.c:4883 [inl= ine] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kmem_cache_alloc_node_noprof+0x441/= 0x690 mm/slub.c:4950 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __alloc_skb+0x1d0/0x7d0 net/core/sk= buff.c:702 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> alloc_skb include/linux/skbuff.h:13= 83 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> alloc_skb_with_frags+0xc8/0x760 net= /core/skbuff.c:6743 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> sock_alloc_send_pskb+0x878/0x990 ne= t/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 [in= line] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __sys_sendto+0x672/0x710 net/socket= .c:2265 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __do_sys_sendto net/socket.c:2272 [= inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __se_sys_sendto net/socket.c:2268 [= inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __x64_sys_sendto+0xde/0x100 net/soc= ket.c:2268 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_x64 arch/x86/entry/sysca= ll_64.c:63 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> do_syscall_64+0x15f/0xf80 arch/x86/= entry/syscall_64.c:94 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> entry_SYSCALL_64_after_hwframe+0x77= /0x7f >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> page last free pid 0 tgid 0 stack tr= ace: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> reset_page_owner include/linux/page= _owner.h:25 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __free_pages_prepare mm/page_alloc.= c:1402 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __free_frozen_pages+0xbc7/0xd30 mm/= page_alloc.c:2943 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> rcu_do_batch kernel/rcu/tree.c:2617= [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> rcu_core+0x7cd/0x1070 kernel/rcu/tr= ee.c:2869 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> handle_softirqs+0x22a/0x840 kernel/= softirq.c:622 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __do_softirq kernel/softirq.c:656 [= inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> invoke_softirq kernel/softirq.c:496= [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> __irq_exit_rcu+0xca/0x220 kernel/so= ftirq.c:735 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> irq_exit_rcu+0x9/0x30 kernel/softir= q.c:752 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> instr_sysvec_apic_timer_interrupt a= rch/x86/kernel/apic/apic.c:1061 [inline] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> sysvec_apic_timer_interrupt+0xa6/0x= c0 arch/x86/kernel/apic/apic.c:1061 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> asm_sysvec_apic_timer_interrupt+0x1= a/0x20 arch/x86/include/asm/idtentry.h:697 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Memory state around the buggy addres= s: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 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 followi= ng tag to your commit message: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Tested-by: syzbot@syzkaller.appspo= tmail.com >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> --- >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> This report is generated by a bot. I= t may contain errors. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> syzbot ci engineers can be reached a= t syzkaller@googlegroups.com. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> To test a patch for this bug, please= reply with `#syz test` >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> (should be on a separate line). >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> The patch should be attached to the = email. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Note: arguments like custom git repo= s and branches are not supported. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> The email will later be sent to: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> [davem@davemloft.net edumazet@google= .com horms@kernel.org kees@kernel.org kuba@kernel.org kuniyu@google.com lin= ux-kernel@vger.kernel.org netdev@vger.kernel.org pabeni@redhat.com stable@v= ger.kernel.org vulab@iscas.ac.cn yangfeng@kylinos.cn] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> If the report looks fine to you, rep= ly with: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> #syz upstream >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> If the report is a false positive, r= eply with >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> #syz invalid >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> -- >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 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/6a185386.99a1ea37= .128423.0001.GAE%40google.com. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> --=20 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> You received this message because you = are subscribed to the Google Groups "syzkaller-upstream-moderation" group. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> To unsubscribe from this group and sto= p 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/6a18555e.e783d627.6= 395.0001.GAE%40google.com. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 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. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> --=20 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> You received this message because you ar= e subscribed to the Google Groups "syzkaller-upstream-moderation" group. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> To unsubscribe from this group and stop = receiving emails from it, send an email to syzkaller-upstream-moderation+un= subscribe@googlegroups.com. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> To view this discussion visit https://gr= oups.google.com/d/msgid/syzkaller-upstream-moderation/6a185561.7f45b5d1.9d2= a9.0005.GAE%40google.com. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 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. >>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>> --=20 >>>>>>>>>>>>>>>>>>>>>>>> You received this message because you are subscrib= ed to the Google Groups "syzkaller-upstream-moderation" group. >>>>>>>>>>>>>>>>>>>>>>>> To unsubscribe from this group and stop receiving = emails from it, send an email to syzkaller-upstream-moderation+unsubscribe@= googlegroups.com. >>>>>>>>>>>>>>>>>>>>>>>> To view this discussion visit https://groups.googl= e.com/d/msgid/syzkaller-upstream-moderation/6a185569.99a1ea37.128423.0009.G= AE%40google.com. >>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>> 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.