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BUG: corrupted list in remove_wait_queue (2)

Status: upstream: reported C repro on 2025/01/22 23:27
Subsystems: fs
[Documentation on labels]
Reported-by: syzbot+4e21d5f67b886a692b55@syzkaller.appspotmail.com
First crash: 220d, last: 5d18h
Cause bisection: introduced by (bisect log) :
commit 8ffdff6a8cfbdc174a3a390b6f825a277b5bb895
Author: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Wed Apr 14 08:58:10 2021 +0000

  staging: comedi: move out of staging directory

Crash: KASAN: use-after-free Read in remove_wait_queue (log)
Repro: C syz .config
  
▶ ▼ Discussions (3)
Title Replies (including bot) Last reply
[syzbot] [fs?] BUG: corrupted list in remove_wait_queue (2) 1 (5) 2025/07/07 11:43
[PATCH v2] media: dmxdev: fix repeated initialization of ringbuffer in dvb_dvr_open() 1 (1) 2025/04/07 09:16
[PATCH] media: dmxdev: fix repeated initialization of ringbuffer in dvb_dvr_open() 1 (1) 2025/04/06 16:58
▶ ▼ Similar bugs (8)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 BUG: corrupted list in remove_wait_queue 8 C 31139 904d 2330d 0/1 upstream: reported C repro on 2019/04/10 16:06
upstream BUG: corrupted list in remove_wait_queue kvm net virt 8 C 5 2712d 2715d 5/29 fixed on 2018/04/06 16:37
upstream KASAN: use-after-free Read in remove_wait_queue (3) kernfs 19 C inconclusive 123 954d 1380d 22/29 fixed on 2023/02/24 13:50
linux-4.14 KASAN: use-after-free Read in remove_wait_queue (2) 19 C error 7 1272d 1968d 0/1 upstream: reported C repro on 2020/04/07 06:03
linux-5.15 KASAN: use-after-free Read in remove_wait_queue origin:lts-only 19 C 25 3d04h 24d 0/3 upstream: reported C repro on 2025/08/03 00:30
upstream KASAN: slab-use-after-free Read in remove_wait_queue input usb 19 3 795d 797d 0/29 auto-obsoleted due to no activity on 2023/10/01 17:55
linux-6.6 KASAN: slab-use-after-free Read in remove_wait_queue 19 9 6d23h 23d 0/2 upstream: reported on 2025/08/03 17:42
linux-6.1 KASAN: use-after-free Read in remove_wait_queue origin:lts-only 19 C inconclusive 24 3d01h 24d 0/3 upstream: reported C repro on 2025/08/03 01:02
▶ ▼ Last patch testing requests (12)
Created Duration User Patch Repo Result
2025/07/07 11:27 15m hdanton@sina.com patch upstream report log
2025/06/22 18:26 15m retest repro upstream report log
2025/05/11 20:42 15m retest repro upstream report log
2025/04/27 19:10 15m retest repro upstream report log
2025/04/27 19:10 15m retest repro upstream report log
2025/04/27 19:10 15m retest repro upstream report log
2025/04/27 19:10 15m retest repro upstream report log
2025/04/13 18:09 15m retest repro upstream report log
2025/02/17 07:26 21m lizhi.xu@windriver.com patch upstream error
2025/02/16 18:54 17m retest repro upstream report log
2025/02/02 17:42 13m retest repro upstream report log
2025/02/02 17:42 13m retest repro upstream report log

Sample crash report:
list_del corruption. prev->next should be ffffc90003377b98, but was ffff88802a2585c8. (prev=ffff88802a2585c8)
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:62!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 0 UID: 0 PID: 9290 Comm: syz-executor367 Not tainted 6.13.0-rc7-syzkaller-00191-gfda5e3f28400 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:__list_del_entry_valid_or_report+0x12c/0x1c0 lib/list_debug.c:62
Code: e8 19 db da fc 90 0f 0b 48 89 ca 48 c7 c7 00 a0 b1 8b e8 07 db da fc 90 0f 0b 48 89 c2 48 c7 c7 60 a0 b1 8b e8 f5 da da fc 90 <0f> 0b 48 89 d1 48 c7 c7 e0 a0 b1 8b 48 89 c2 e8 e0 da da fc 90 0f
RSP: 0018:ffffc90003377880 EFLAGS: 00010086
RAX: 000000000000006d RBX: ffffc90003377b80 RCX: ffffffff8178e449
RDX: 0000000000000000 RSI: ffffffff81798bd6 RDI: 0000000000000005
RBP: ffff88802a258588 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000001 R11: 0000000000000001 R12: 0000000000000286
R13: ffffc90003377b98 R14: ffffc90003377ba0 R15: ffffc90003377b70
FS:  0000555578a00380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f687b8542b0 CR3: 0000000073a90000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __list_del_entry_valid include/linux/list.h:124 [inline]
 __list_del_entry include/linux/list.h:215 [inline]
 list_del include/linux/list.h:229 [inline]
 __remove_wait_queue include/linux/wait.h:207 [inline]
 remove_wait_queue+0x30/0x180 kernel/sched/wait.c:55
 free_poll_entry fs/select.c:132 [inline]
 poll_freewait+0xd5/0x250 fs/select.c:141
 do_sys_poll+0x6f7/0xde0 fs/select.c:1010
 __do_sys_poll fs/select.c:1074 [inline]
 __se_sys_poll fs/select.c:1062 [inline]
 __x64_sys_poll+0x1a8/0x450 fs/select.c:1062
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f687b7d8809
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 1c 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffdb8bb93f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000007
RAX: ffffffffffffffda RBX: 00307276642f3072 RCX: 00007f687b7d8809
RDX: 0000000000000106 RSI: 0000000000000005 RDI: 0000000020000080
RBP: 0000000000000000 R08: 00007ffdb8bb8f60 R09: 00007ffdb8bb8f60
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdb8bb941c
R13: 00007ffdb8bb9430 R14: 00007ffdb8bb9470 R15: 0000000000000359
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__list_del_entry_valid_or_report+0x12c/0x1c0 lib/list_debug.c:62
Code: e8 19 db da fc 90 0f 0b 48 89 ca 48 c7 c7 00 a0 b1 8b e8 07 db da fc 90 0f 0b 48 89 c2 48 c7 c7 60 a0 b1 8b e8 f5 da da fc 90 <0f> 0b 48 89 d1 48 c7 c7 e0 a0 b1 8b 48 89 c2 e8 e0 da da fc 90 0f
RSP: 0018:ffffc90003377880 EFLAGS: 00010086
RAX: 000000000000006d RBX: ffffc90003377b80 RCX: ffffffff8178e449
RDX: 0000000000000000 RSI: ffffffff81798bd6 RDI: 0000000000000005
RBP: ffff88802a258588 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000001 R11: 0000000000000001 R12: 0000000000000286
R13: ffffc90003377b98 R14: ffffc90003377ba0 R15: ffffc90003377b70
FS:  0000555578a00380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f687b8542b0 CR3: 0000000073a90000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (51):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/01/19 17:38 upstream fda5e3f28400 f2cb035c .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: corrupted list in remove_wait_queue
2025/01/19 15:02 upstream fda5e3f28400 f2cb035c .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: corrupted list in remove_wait_queue
2025/01/19 12:45 upstream fda5e3f28400 f2cb035c .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: corrupted list in remove_wait_queue
2025/01/19 08:27 upstream fda5e3f28400 f2cb035c .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: corrupted list in remove_wait_queue
2025/01/19 06:05 upstream fda5e3f28400 f2cb035c .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: corrupted list in remove_wait_queue
2025/08/03 11:19 upstream 038d61fd6422 7368264b .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root KASAN: slab-use-after-free Read in remove_wait_queue
2025/07/06 03:06 upstream 05df91921da6 4f67c4ae .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root KASAN: slab-use-after-free Read in remove_wait_queue
2025/07/10 00:50 linux-next 835244aba90d f4e5e155 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce KASAN: slab-use-after-free Read in remove_wait_queue
2025/01/19 10:38 upstream fda5e3f28400 f2cb035c .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: corrupted list in remove_wait_queue
2025/01/18 23:22 upstream 595523945be0 f2cb035c .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto BUG: corrupted list in remove_wait_queue
2025/08/21 19:13 upstream 038d61fd6422 0b9605c8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root KASAN: slab-use-after-free Read in remove_wait_queue
2025/08/20 16:35 upstream 038d61fd6422 bd178e57 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root KASAN: slab-use-after-free Read in remove_wait_queue
2025/08/20 03:26 upstream 038d61fd6422 79512909 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root KASAN: slab-use-after-free Read in remove_wait_queue
2025/08/20 02:16 upstream 038d61fd6422 79512909 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root KASAN: slab-use-after-free Read in remove_wait_queue
2025/08/19 11:22 upstream 038d61fd6422 523f460e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root KASAN: slab-use-after-free Read in remove_wait_queue
2025/08/19 05:08 upstream 038d61fd6422 523f460e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root KASAN: slab-use-after-free Read in remove_wait_queue
2025/08/17 06:17 upstream 038d61fd6422 1804e95e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root KASAN: slab-use-after-free Read in remove_wait_queue
2025/08/11 07:05 upstream 038d61fd6422 32a0e5ed .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root KASAN: slab-use-after-free Read in remove_wait_queue
2025/08/06 14:04 upstream 038d61fd6422 4bd24a3e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root KASAN: slab-use-after-free Read in remove_wait_queue
2025/08/06 08:00 upstream 038d61fd6422 904e669c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root KASAN: slab-use-after-free Read in remove_wait_queue
2025/08/03 13:15 upstream 038d61fd6422 7368264b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root KASAN: slab-use-after-free Read in remove_wait_queue
2025/07/30 06:15 upstream 038d61fd6422 f8f2b4da .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root KASAN: slab-use-after-free Read in remove_wait_queue
2025/07/30 00:44 upstream ced1b9e0392d f8f2b4da .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root KASAN: slab-use-after-free Read in remove_wait_queue
2025/07/30 00:44 upstream ced1b9e0392d f8f2b4da .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root KASAN: slab-use-after-free Read in remove_wait_queue
2025/07/29 21:18 upstream 038d61fd6422 f8f2b4da .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root KASAN: slab-use-after-free Read in remove_wait_queue
2025/07/27 18:24 upstream b711733e89a3 fb8f743d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root KASAN: slab-use-after-free Read in remove_wait_queue
2025/07/26 22:24 upstream 5f33ebd2018c fb8f743d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root KASAN: slab-use-after-free Read in remove_wait_queue
2025/07/24 09:48 upstream 01a412d06bc5 0c1d6ded .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root KASAN: slab-use-after-free Read in remove_wait_queue
2025/07/17 19:46 upstream e2291551827f 0d1223f1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root KASAN: slab-use-after-free Read in remove_wait_queue
2025/07/09 21:55 upstream 733923397fd9 f4e5e155 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root KASAN: slab-use-after-free Read in remove_wait_queue
2025/07/09 03:21 upstream d006330be3f7 abade794 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root KASAN: slab-use-after-free Read in remove_wait_queue
2025/07/09 03:21 upstream d006330be3f7 abade794 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root KASAN: slab-use-after-free Read in remove_wait_queue
2025/07/08 23:29 upstream d006330be3f7 abade794 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root KASAN: slab-use-after-free Read in remove_wait_queue
2025/07/08 23:28 upstream d006330be3f7 abade794 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root KASAN: slab-use-after-free Read in remove_wait_queue
2025/07/06 02:10 upstream 05df91921da6 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root KASAN: slab-use-after-free Read in remove_wait_queue
2025/07/28 15:32 upstream 038d61fd6422 032c6886 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream KASAN: slab-use-after-free Read in remove_wait_queue
2025/07/28 07:47 upstream b711733e89a3 fb8f743d .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream KASAN: slab-use-after-free Read in remove_wait_queue
2025/07/26 09:58 upstream 5f33ebd2018c fb8f743d .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream KASAN: slab-use-after-free Read in remove_wait_queue
2025/07/25 13:27 upstream 94ce1ac2c9b4 fb8f743d .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream KASAN: slab-use-after-free Read in remove_wait_queue
2025/07/25 02:30 upstream 94ce1ac2c9b4 fb8f743d .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream KASAN: slab-use-after-free Read in remove_wait_queue
2025/07/23 16:41 upstream 89be9a83ccf1 e0b9ac93 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream KASAN: slab-use-after-free Read in remove_wait_queue
2025/07/21 04:44 upstream 990b11a523a8 7117feec .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream KASAN: slab-use-after-free Read in remove_wait_queue
2025/07/20 10:27 upstream f4a40a4282f4 7117feec .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream KASAN: slab-use-after-free Read in remove_wait_queue
2025/07/20 09:42 upstream f4a40a4282f4 7117feec .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream KASAN: slab-use-after-free Read in remove_wait_queue
2025/07/19 10:20 upstream c7de79e662b8 7117feec .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream KASAN: slab-use-after-free Read in remove_wait_queue
2025/07/15 17:48 upstream 155a3c003e55 03fcfc4b .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream KASAN: slab-use-after-free Read in remove_wait_queue
2025/07/13 13:56 upstream 3f31a806a62e 3cda49cf .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream KASAN: slab-use-after-free Read in remove_wait_queue
2025/07/10 13:49 upstream 8c2e52ebbe88 d7384b6d .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream KASAN: slab-use-after-free Read in remove_wait_queue
2025/07/13 13:22 upstream 3f31a806a62e 3cda49cf .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 KASAN: slab-use-after-free Read in remove_wait_queue
* Struck through repros no longer work on HEAD.