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WARNING in __v9fs_get_acl

Status: upstream: reported C repro on 2023/03/13 03:41
Bug presence: origin:upstream
Labels: missing-backport
[Documentation on labels]
Reported-by: syzbot+099b12b91b0072764f65@syzkaller.appspotmail.com
First crash: 855d, last: 23h37m
▶ ▼ Bug presence (3)
Date Name Commit Repro Result
2024/04/20 linux-5.15.y (ToT) c52b9710c83d C [report] WARNING in __v9fs_get_acl
2023/05/09 upstream (ToT) ba0ad6ed89fd C [report] WARNING in v9fs_fid_get_acl
2024/04/20 upstream (ToT) 977b1ef51866 C Didn't crash
▶ ▼ Similar bugs (2)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 WARNING in __v9fs_get_acl origin:upstream missing-backport -1 C error 1962 23h36m 855d 0/3 upstream: reported C repro on 2023/03/13 04:51
upstream WARNING in __v9fs_get_acl v9fs -1 C done error 224 920d 1429d 0/29 auto-obsoleted due to no activity on 2024/06/22 13:42
▶ ▼ Last patch testing requests (5)
Created Duration User Patch Repo Result
2024/10/24 03:22 8m retest repro linux-5.15.y report log
2024/10/24 03:22 8m retest repro linux-5.15.y report log
2024/10/24 03:22 9m retest repro linux-5.15.y report log
2024/10/24 03:22 9m retest repro linux-5.15.y report log
2024/10/24 03:22 9m retest repro linux-5.15.y report log
▶ ▼ Fix bisection attempts (5)
Created Duration User Patch Repo Result
2025/06/17 07:08 12h14m fix candidate upstream error job log
2025/04/16 06:43 12h01m fix candidate upstream error job log
2025/02/28 02:00 12h00m fix candidate upstream error job log
2024/12/01 23:16 12h12m fix candidate upstream error job log
2024/08/08 17:32 12h01m fix candidate upstream error job log

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 1 PID: 3566 at mm/page_alloc.c:5398 __alloc_pages+0x5cf/0x700
Modules linked in:
CPU: 1 PID: 3566 Comm: syz-executor990 Not tainted 5.15.165-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:__alloc_pages+0x5cf/0x700 mm/page_alloc.c:5398
Code: 00 48 ba 00 00 00 00 00 fc ff df e9 1d fd ff ff 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 2e fd ff ff e8 f6 40 0a 00 e9 24 fd ff ff <0f> 0b 45 31 e4 e9 70 fd ff ff 48 8d 4c 24 50 80 e1 07 80 c1 03 38
RSP: 0018:ffffc90002507a20 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: 000000000000001c RCX: 0000000000000000
RDX: 0000000000000028 RSI: 0000000000000000 RDI: ffffc90002507aa8
RBP: ffffc90002507b40 R08: dffffc0000000000 R09: ffffc90002507a80
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000040d40
R13: 1ffff920004a0f4c R14: ffffc90002507a80 R15: 1ffff920004a0f48
FS:  000055555749d480(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055eaa356ea98 CR3: 00000000296db000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 kmalloc_order+0x41/0x150 mm/slab_common.c:966
 kmalloc_order_trace+0x15/0xe0 mm/slab_common.c:982
 kmalloc_large include/linux/slab.h:520 [inline]
 __kmalloc+0x214/0x300 mm/slub.c:4396
 kmalloc include/linux/slab.h:596 [inline]
 kzalloc include/linux/slab.h:721 [inline]
 __v9fs_get_acl+0x40/0x110 fs/9p/acl.c:36
 v9fs_get_acl+0x93/0x280 fs/9p/acl.c:70
 v9fs_mount+0x6dc/0x860 fs/9p/vfs_super.c:184
 legacy_get_tree+0xeb/0x180 fs/fs_context.c:611
 vfs_get_tree+0x88/0x270 fs/super.c:1528
 do_new_mount+0x2ba/0xb40 fs/namespace.c:3005
 do_mount fs/namespace.c:3348 [inline]
 __do_sys_mount fs/namespace.c:3556 [inline]
 __se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3533
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7faeb22579d9
Code: 48 83 c4 28 c3 e8 67 17 00 00 0f 1f 80 00 00 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd31c3c158 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007faeb22579d9
RDX: 0000000020000b80 RSI: 00000000200003c0 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000020000500 R09: 00007faeb22247e0
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd31c3c3c8 R14: 0000000000000001 R15: 0000000000000001
 </TASK>

Crashes (1218):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/08/31 16:06 linux-5.15.y fa93fa65db6e 1eda0d14 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __v9fs_get_acl
2024/08/31 14:51 linux-5.15.y fa93fa65db6e 1eda0d14 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __v9fs_get_acl
2024/04/22 18:34 linux-5.15.y c52b9710c83d 36c961ad .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __v9fs_get_acl
2024/01/12 12:34 linux-5.15.y 26c690eff0a5 dda5a988 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __v9fs_get_acl
2023/12/17 01:42 linux-5.15.y d0fc081c6241 3222d10c .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __v9fs_get_acl
2023/11/13 16:19 linux-5.15.y 80529b4968a8 6d6dbf8a .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __v9fs_get_acl
2023/03/27 08:22 linux-5.15.y 115472395b0a fbf0499a .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __v9fs_get_acl
2025/04/19 18:33 linux-5.15.y f7347f400572 2a20f901 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __v9fs_get_acl
2025/04/19 16:56 linux-5.15.y f7347f400572 2a20f901 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __v9fs_get_acl
2024/12/12 10:55 linux-5.15.y 0a51d2d4527b 6f1b0fa8 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __v9fs_get_acl
2024/05/19 07:12 linux-5.15.y 83655231580b c0f1611a .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __v9fs_get_acl
2024/05/04 16:56 linux-5.15.y 284087d4f7d5 610f2a54 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __v9fs_get_acl
2024/04/22 17:52 linux-5.15.y c52b9710c83d 36c961ad .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __v9fs_get_acl
2023/07/06 02:32 linux-5.15.y 4af60700a60c ba5dba36 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __v9fs_get_acl
2023/03/27 02:57 linux-5.15.y 115472395b0a fbf0499a .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __v9fs_get_acl
2023/03/13 08:10 linux-5.15.y bbf9f29bac04 5205ef30 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __v9fs_get_acl
2023/07/31 10:51 linux-5.15.y 09996673e313 2a0d0f29 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __v9fs_get_acl
2023/07/18 12:13 linux-5.15.y d54cfc420586 20f8b3c2 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __v9fs_get_acl
2023/03/13 08:47 linux-5.15.y bbf9f29bac04 5205ef30 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __v9fs_get_acl
2023/03/13 03:59 linux-5.15.y bbf9f29bac04 5205ef30 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __v9fs_get_acl
2025/07/14 10:11 linux-5.15.y 2f693b607545 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __v9fs_get_acl
2025/07/10 09:32 linux-5.15.y 3dea0e7f549e 956bd956 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __v9fs_get_acl
2025/07/09 23:26 linux-5.15.y 3dea0e7f549e f4e5e155 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __v9fs_get_acl
2025/07/07 16:48 linux-5.15.y 3dea0e7f549e 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __v9fs_get_acl
2025/07/02 20:04 linux-5.15.y 3dea0e7f549e bc80e4f0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __v9fs_get_acl
2025/07/02 20:02 linux-5.15.y 3dea0e7f549e bc80e4f0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __v9fs_get_acl
2025/06/30 16:50 linux-5.15.y 3dea0e7f549e fc9d8ee5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __v9fs_get_acl
2025/06/30 08:56 linux-5.15.y 3dea0e7f549e fc9d8ee5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __v9fs_get_acl
2025/06/24 07:39 linux-5.15.y 1c700860e8bc e2f27c35 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __v9fs_get_acl
2025/06/17 12:20 linux-5.15.y 1c700860e8bc cfebc887 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __v9fs_get_acl
2025/06/17 00:57 linux-5.15.y 1c700860e8bc d1716036 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __v9fs_get_acl
2025/06/15 19:58 linux-5.15.y 1c700860e8bc 5f4b362d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __v9fs_get_acl
2025/06/10 02:42 linux-5.15.y 1c700860e8bc 4826c28e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __v9fs_get_acl
2025/06/07 17:06 linux-5.15.y 1c700860e8bc 4826c28e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __v9fs_get_acl
2025/06/07 11:49 linux-5.15.y 1c700860e8bc 4826c28e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __v9fs_get_acl
2025/06/01 05:09 linux-5.15.y 98f47d0e9b8c 3d2f584d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __v9fs_get_acl
2025/05/28 01:34 linux-5.15.y 98f47d0e9b8c 874a1386 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __v9fs_get_acl
2025/05/26 23:58 linux-5.15.y 98f47d0e9b8c 874a1386 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __v9fs_get_acl
2025/05/17 10:42 linux-5.15.y 3b8db0e4f263 f41472b0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __v9fs_get_acl
2025/05/11 14:25 linux-5.15.y 3b8db0e4f263 77908e5f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __v9fs_get_acl
2025/05/08 01:01 linux-5.15.y 16fdf2c7111b dbf35fa1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __v9fs_get_acl
2025/05/08 01:00 linux-5.15.y 16fdf2c7111b dbf35fa1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __v9fs_get_acl
2025/05/05 11:07 linux-5.15.y 16fdf2c7111b b0714e37 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __v9fs_get_acl
2025/07/13 07:09 linux-5.15.y 2f693b607545 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __v9fs_get_acl
2025/07/09 17:24 linux-5.15.y 3dea0e7f549e f4e5e155 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __v9fs_get_acl
2025/07/07 18:28 linux-5.15.y 3dea0e7f549e 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __v9fs_get_acl
2025/07/02 17:14 linux-5.15.y 3dea0e7f549e bc80e4f0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __v9fs_get_acl
2025/06/24 17:09 linux-5.15.y 1c700860e8bc e2f27c35 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __v9fs_get_acl
2025/06/24 05:28 linux-5.15.y 1c700860e8bc e2f27c35 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __v9fs_get_acl
2025/06/22 14:17 linux-5.15.y 1c700860e8bc d6cdfb8a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __v9fs_get_acl
2025/06/21 22:46 linux-5.15.y 1c700860e8bc d6cdfb8a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __v9fs_get_acl
2025/06/20 03:04 linux-5.15.y 1c700860e8bc ed3e87f7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __v9fs_get_acl
2025/06/19 15:33 linux-5.15.y 1c700860e8bc ed3e87f7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __v9fs_get_acl
2025/06/17 08:59 linux-5.15.y 1c700860e8bc cfebc887 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __v9fs_get_acl
2025/06/16 21:27 linux-5.15.y 1c700860e8bc d1716036 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __v9fs_get_acl
2025/06/16 10:03 linux-5.15.y 1c700860e8bc 5f4b362d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __v9fs_get_acl
2025/06/15 10:43 linux-5.15.y 1c700860e8bc 5f4b362d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __v9fs_get_acl
2025/06/15 06:52 linux-5.15.y 1c700860e8bc 5f4b362d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __v9fs_get_acl
2025/06/13 04:33 linux-5.15.y 1c700860e8bc 98683f8f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __v9fs_get_acl
2025/06/12 05:45 linux-5.15.y 1c700860e8bc 98683f8f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __v9fs_get_acl
2025/06/07 14:19 linux-5.15.y 1c700860e8bc 4826c28e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __v9fs_get_acl
2025/05/31 16:23 linux-5.15.y 98f47d0e9b8c 3d2f584d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __v9fs_get_acl
2025/05/31 12:09 linux-5.15.y 98f47d0e9b8c 3d2f584d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __v9fs_get_acl
2025/05/29 19:46 linux-5.15.y 98f47d0e9b8c 3d2f584d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __v9fs_get_acl
2025/05/23 06:26 linux-5.15.y 98f47d0e9b8c fa44301a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __v9fs_get_acl
2025/05/17 20:00 linux-5.15.y 3b8db0e4f263 f41472b0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __v9fs_get_acl
2025/05/17 06:20 linux-5.15.y 3b8db0e4f263 f41472b0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __v9fs_get_acl
2025/05/16 15:03 linux-5.15.y 3b8db0e4f263 cfde8269 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __v9fs_get_acl
2025/05/16 02:12 linux-5.15.y 3b8db0e4f263 cfde8269 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __v9fs_get_acl
2025/05/04 13:32 linux-5.15.y 16fdf2c7111b b0714e37 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __v9fs_get_acl
2023/03/13 03:40 linux-5.15.y bbf9f29bac04 5205ef30 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __v9fs_get_acl
* Struck through repros no longer work on HEAD.