From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oi1-f207.google.com (mail-oi1-f207.google.com [209.85.167.207]) (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 D4CB028469A for ; Tue, 11 Aug 2026 00:24:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.167.207 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786407881; cv=none; b=k7bfasEU5m72tzDU/wgiGMEJcH/JG/z1RmCfjDdTus9JwMmGjB/+bL+MR4qysu7BThXnNuZXe87Ke2D697JVsW3+z2OxC+pH5JmsSNFk6yRvHuXQ2ZBoRV79WUXzjdW1+8hmPQW0JKWW0SVwWci9zZ3w/1JrELdFRHlPC4frN7k= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786407881; c=relaxed/simple; bh=zaT3w+byGPNooBHKLRI6E4tYpVh9Cr1pq+X2kvGEWok=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=aHZCg33PrxI1ve9WoN9TO2SPX9nx096FcBlwiEL1aRmwnsie5E9IRvWLkQO/pd6xIwsCtDD9s+xzgWsPqe6tM22J+Zbi+mU85OiwKyKjH5jjtoZ8to/AGFzt3DdBVUtVHwFs01uEHFgy9hz3woL7Dz91UaCi+vBE81GLWNJ+kn8= 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=209.85.167.207 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-oi1-f207.google.com with SMTP id 5614622812f47-4b1a69b1188so3183894b6e.1 for ; Mon, 10 Aug 2026 17:24:39 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1786407879; x=1787012679; h=content-type:to:from:subject:message-id:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=UiGGue9L5xMMwAImhWVVc3948hLhf/ZrXuZQe8xPGNo=; b=h959gBC8sODVHpQ3g2M3hxw07N113uyLsLla+i8Wbx81e42RSiekAE2/ucNMO52Pxr dJnGWHViKF6HGJzSp8t1pK8D8EmGK2HQRUiZsR+Mgi2Yp61QOx/aHnMCF3r/TK/PUmQV WISdiZkqDwcjGTRxGHh/FhIcErvT8Fd8OFgzhN22NFgnJwUt0XgAYQHUY3d+kacHA6uq gOWjQYRRLCKgA/chDlgm4qROVivsM6JBYcswJw1HOnUdiCzgao09mj8sQiMVBuY1uM+H J08Dxal5agy3lDF2zaSpZyTRxBW6C1zoEjgaCfbKs1/tqxAuI1uPRpJv/MmqTklYe+vE cg+A== X-Forwarded-Encrypted: i=1; AHgh+Ro9XOds8bgEjlTQLXe4U5N/PhImukU30YCAPgK6vxzWEgu94/WZ/virs/vNYxYB5NjLbUCtQBEDcRYErog=@vger.kernel.org X-Gm-Message-State: AOJu0YwJOqd17UlivoQyCDmFTbeIAWrT5Xx8nXoYonHt2MSDrg6LTBxJ HFkNQQ6KPGVZNZxWlV+N0qK7BEmjiZj/01CtWyToAcEUhvqTUyj9PV1PvdAbzNCawnMie150DHy Rl7dri7X9gQ5jrT82OQEJJvks+1oN3w+blJJhraJx8V+TxMDHwJtRbtHKMGA= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6808:f0c:b0:4b1:b037:da8b with SMTP id 5614622812f47-4b1e78869efmr2612129b6e.11.1786407878743; Mon, 10 Aug 2026 17:24:38 -0700 (PDT) Date: Mon, 10 Aug 2026 17:24:38 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a7a6bc6.01d0871a.3a0d52.00b4.GAE@google.com> Subject: [syzbot] [net?] WARNING in __virt_to_phys (6) From: syzbot To: davem@davemloft.net, edumazet@google.com, horms@kernel.org, kuba@kernel.org, kuniyu@google.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, pabeni@redhat.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 7235a3e71949 Merge branch 'for-next/core' into for-kernelci git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci console output: https://syzkaller.appspot.com/x/log.txt?x=134277b9580000 kernel config: https://syzkaller.appspot.com/x/.config?x=ccf4bea59f67007 dashboard link: https://syzkaller.appspot.com/bug?extid=204eda57286574703583 compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 userspace arch: arm64 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/fd45635beaae/disk-7235a3e7.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/d7d2e6507223/vmlinux-7235a3e7.xz kernel image: https://storage.googleapis.com/syzbot-assets/b5b5d8de4cea/Image-7235a3e7.gz.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+204eda57286574703583@syzkaller.appspotmail.com ------------[ cut here ]------------ virt_to_phys used for non-linear address: 00000000b1de4396 (0x17ffffe791001021) WARNING: arch/arm64/mm/physaddr.c:15 at __virt_to_phys+0xe8/0x130 arch/arm64/mm/physaddr.c:12, CPU#0: dhcpcd/4400 Modules linked in: CPU: 0 UID: 100 PID: 4400 Comm: dhcpcd Not tainted syzkaller #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : __virt_to_phys+0xe8/0x130 arch/arm64/mm/physaddr.c:12 lr : __virt_to_phys+0xe8/0x130 arch/arm64/mm/physaddr.c:12 sp : ffff8000997e72b0 x29: ffff8000997e72b0 x28: ffff800088b0b6a0 x27: ffff0000c7228000 x26: 17ffffe791001021 x25: 0000000000000204 x24: ffffc1ffc0000000 x23: ffff80008869e000 x22: 000f600000000000 x21: 000000000000002d x20: 180fffe791001021 x19: 17ffffe791001021 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000000002 x9 : b196a926009aaa00 x8 : b196a926009aaa00 x7 : ffff80008048e080 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000802f8070 x2 : 0000000100000000 x1 : ffff0000c7228000 x0 : 0000000000000000 Call trace: __virt_to_phys+0xe8/0x130 arch/arm64/mm/physaddr.c:12 (P) virt_to_phys arch/arm64/include/asm/memory.h:369 [inline] virt_to_pfn arch/arm64/include/asm/memory.h:383 [inline] virt_to_slab mm/slab.h:193 [inline] qlink_to_cache mm/kasan/quarantine.c:131 [inline] qlist_free_all+0x58/0x120 mm/kasan/quarantine.c:176 kasan_quarantine_reduce+0x118/0x124 mm/kasan/quarantine.c:286 __kasan_kmalloc+0x2c/0xb4 mm/kasan/common.c:406 kasan_kmalloc include/linux/kasan.h:263 [inline] __do_kmalloc_node mm/slub.c:5334 [inline] __kmalloc_node_track_caller_noprof+0x434/0x6d4 mm/slub.c:5471 kmalloc_reserve+0x118/0x214 net/core/skbuff.c:637 __alloc_skb+0x230/0x610 net/core/skbuff.c:715 alloc_skb include/linux/skbuff.h:1384 [inline] alloc_skb_with_frags+0xb8/0x690 net/core/skbuff.c:6769 sock_alloc_send_pskb+0x740/0x850 net/core/sock.c:3013 unix_dgram_sendmsg+0x434/0x1078 net/unix/af_unix.c:2136 unix_seqpacket_sendmsg+0x108/0x1d0 net/unix/af_unix.c:2537 sock_sendmsg_nosec net/socket.c:775 [inline] __sock_sendmsg+0xc8/0x17c net/socket.c:790 sock_write_iter+0x220/0x310 net/socket.c:1241 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x51c/0xa0c fs/read_write.c:687 ksys_write+0x12c/0x228 fs/read_write.c:739 __do_sys_write fs/read_write.c:750 [inline] __se_sys_write fs/read_write.c:747 [inline] __arm64_sys_write+0x84/0x98 fs/read_write.c:747 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x19c/0x23c arch/arm64/kernel/syscall.c:121 do_el0_svc+0x4c/0x5c arch/arm64/kernel/syscall.c:140 el0_svc+0x64/0x260 arch/arm64/kernel/entry-common.c:736 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 345484 hardirqs last enabled at (345483): [] vprintk_store+0x924/0xb94 kernel/printk/printk.c:2385 hardirqs last disabled at (345484): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (343926): [] __alloc_skb+0x1c0/0x610 net/core/skbuff.c:698 softirqs last disabled at (343924): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (343924): [] __alloc_skb+0x1a8/0x610 net/core/skbuff.c:697 ---[ end trace 0000000000000000 ]--- Unable to handle kernel paging request at virtual address 005fffff638e0048 Mem abort info: ESR = 0x0000000096000004 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x04: level 0 translation fault Data abort info: ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000 CM = 0, WnR = 0, TnD = 0, TagAccess = 0 GCS = 0, Overlay = 0, DirtyBit = 0 [005fffff638e0048] address between user and kernel address ranges Internal error: Oops: 0000000096000004 [#1] SMP Modules linked in: CPU: 0 UID: 100 PID: 4400 Comm: dhcpcd Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : _compound_head include/linux/page-flags.h:226 [inline] pc : page_slab mm/slab.h:159 [inline] pc : virt_to_slab mm/slab.h:193 [inline] pc : qlink_to_cache mm/kasan/quarantine.c:131 [inline] pc : qlist_free_all+0x68/0x120 mm/kasan/quarantine.c:176 lr : virt_to_phys arch/arm64/include/asm/memory.h:369 [inline] lr : virt_to_pfn arch/arm64/include/asm/memory.h:383 [inline] lr : virt_to_slab mm/slab.h:193 [inline] lr : qlink_to_cache mm/kasan/quarantine.c:131 [inline] lr : qlist_free_all+0x58/0x120 mm/kasan/quarantine.c:176 sp : ffff8000997e72e0 x29: ffff8000997e72e0 x28: ffff800088b0b6a0 x27: ffff0000c7228000 x26: 17ffffe791001021 x25: 0000000000000204 x24: ffffc1ffc0000000 x23: ffff80008869e000 x22: 17ffffe791001021 x21: ffffff1000040000 x20: 0000000000000000 x19: ffff8000997e7330 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000000002 x9 : 0000000000000000 x8 : 005fffff638e0040 x7 : ffff80008048e080 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000802f8070 x2 : 0000000100000000 x1 : ffff0000c7228000 x0 : 18007fe923801021 Call trace: virt_to_slab mm/slab.h:193 [inline] (P) qlink_to_cache mm/kasan/quarantine.c:131 [inline] (P) qlist_free_all+0x68/0x120 mm/kasan/quarantine.c:176 (P) kasan_quarantine_reduce+0x118/0x124 mm/kasan/quarantine.c:286 __kasan_kmalloc+0x2c/0xb4 mm/kasan/common.c:406 kasan_kmalloc include/linux/kasan.h:263 [inline] __do_kmalloc_node mm/slub.c:5334 [inline] __kmalloc_node_track_caller_noprof+0x434/0x6d4 mm/slub.c:5471 kmalloc_reserve+0x118/0x214 net/core/skbuff.c:637 __alloc_skb+0x230/0x610 net/core/skbuff.c:715 alloc_skb include/linux/skbuff.h:1384 [inline] alloc_skb_with_frags+0xb8/0x690 net/core/skbuff.c:6769 sock_alloc_send_pskb+0x740/0x850 net/core/sock.c:3013 unix_dgram_sendmsg+0x434/0x1078 net/unix/af_unix.c:2136 unix_seqpacket_sendmsg+0x108/0x1d0 net/unix/af_unix.c:2537 sock_sendmsg_nosec net/socket.c:775 [inline] __sock_sendmsg+0xc8/0x17c net/socket.c:790 sock_write_iter+0x220/0x310 net/socket.c:1241 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x51c/0xa0c fs/read_write.c:687 ksys_write+0x12c/0x228 fs/read_write.c:739 __do_sys_write fs/read_write.c:750 [inline] __se_sys_write fs/read_write.c:747 [inline] __arm64_sys_write+0x84/0x98 fs/read_write.c:747 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x19c/0x23c arch/arm64/kernel/syscall.c:121 do_el0_svc+0x4c/0x5c arch/arm64/kernel/syscall.c:140 el0_svc+0x64/0x260 arch/arm64/kernel/entry-common.c:736 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 Code: d346fc08 927acd08 cb151908 8b180108 (f9400509) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: d346fc08 lsr x8, x0, #6 4: 927acd08 and x8, x8, #0x3ffffffffffffc0 8: cb151908 sub x8, x8, x21, lsl #6 c: 8b180108 add x8, x8, x24 * 10: f9400509 ldr x9, [x8, #8] <-- trapping instruction --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup