WARNING in ovl_workdir

Date	Name	Commit	Repro	Result
2026/04/04	linux-5.15.y (ToT)	91d48252ad4b	C	[report] WARNING in ovl_workdir_create
2026/04/04	upstream (ToT)	3aae9383f42f	C	Didn't crash

Date

Name

Commit

Repro

Result

2026/04/04

linux-5.15.y (ToT)

91d48252ad4b

[report] WARNING in ovl_workdir_create

2026/04/04

upstream (ToT)

3aae9383f42f

Didn't crash

Kernel	Title	Rank 🛈	Count	Last	Reported	Patched	Status
linux-5.15	WARNING in ovl_workdir_create (3)	-1	2	247d	247d	0/3	auto-obsoleted due to no activity on 2025/11/09 02:42
upstream	WARNING in ovl_workdir_create overlayfs	-1	1	1201d	1197d	0/29	auto-obsoleted due to no activity on 2023/04/20 02:11
upstream	WARNING in ovl_workdir_create (3) ext4	-1	1	696d	692d	0/29	auto-obsoleted due to no activity on 2024/08/17 18:22
linux-6.1	WARNING in ovl_workdir_create (3)	-1	4	211d	331d	0/3	auto-obsoleted due to no activity on 2025/12/15 10:43
upstream	WARNING in ovl_workdir_create (4) overlayfs	-1	1	496d	492d	0/29	auto-obsoleted due to no activity on 2025/01/24 06:35
linux-6.1	WARNING in ovl_workdir_create (2)	-1	2	472d	487d	0/3	auto-obsoleted due to no activity on 2025/03/29 20:32
linux-5.15	WARNING in ovl_workdir_create	-1	3	496d	649d	0/3	auto-obsoleted due to no activity on 2025/03/04 23:52
linux-6.1	WARNING in ovl_workdir_create (4)	-1	3	63d	76d	0/3	upstream: reported on 2026/01/19 15:15
upstream	WARNING in ovl_workdir_create (5) overlayfs	-1	4	144d	207d	0/29	auto-obsoleted due to no activity on 2026/02/20 12:32
linux-5.15	WARNING in ovl_workdir_create (2)	-1	1	367d	367d	0/3	auto-obsoleted due to no activity on 2025/07/12 19:53
linux-6.1	WARNING in ovl_workdir_create	-1	1	688d	688d	0/3	auto-obsoleted due to no activity on 2024/08/25 13:40
upstream	WARNING in ovl_workdir_create (2) overlayfs	-1	1	877d	873d	0/29	auto-obsoleted due to no activity on 2024/02/18 01:53

Created	Duration	User	Patch	Repo	Result
2026/04/05 01:56	1m	fix candidate		upstream	error job log

Created

Duration

User

Patch

Repo

Result

2026/04/05 01:56

fix candidate

upstream

error job log

DEBUG_RWSEMS_WARN_ON((rwsem_owner(sem) != current) && !rwsem_test_oflags(sem, RWSEM_NONSPINNABLE)): count = 0x0, magic = 0xffff888058e82810, owner = 0x0, curr 0xffff88805c210000, list empty WARNING: CPU: 0 PID: 4371 at kernel/locking/rwsem.c:1350 __up_write kernel/locking/rwsem.c:1349 [inline] WARNING: CPU: 0 PID: 4371 at kernel/locking/rwsem.c:1350 up_write+0x3a1/0x420 kernel/locking/rwsem.c:1604 Modules linked in: CPU: 0 PID: 4371 Comm: syz.1.18 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 RIP: 0010:__up_write kernel/locking/rwsem.c:1349 [inline] RIP: 0010:up_write+0x3a1/0x420 kernel/locking/rwsem.c:1604 Code: 44 d0 48 c7 c7 00 1b 2b 8a 48 c7 c6 c0 1d 2b 8a 48 8b 14 24 4c 89 f1 4d 89 e0 4c 8b 4c 24 08 41 52 e8 53 1f 55 08 48 83 c4 08 <0f> 0b e9 6b fd ff ff 48 c7 c1 08 17 8a 8d 80 e1 07 80 c1 03 38 c1 RSP: 0018:ffffc9000361f790 EFLAGS: 00010296 RAX: b4775d46e634aa00 RBX: ffff888058e82810 RCX: ffff88805c210000 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: dffffc0000000000 R08: ffff8880b9033d7f R09: 1ffff110172067af R10: dffffc0000000000 R11: ffffed10172067b0 R12: 0000000000000000 R13: ffff888058e82868 R14: ffff888058e82810 R15: 1ffff1100b1d0503 FS: 00007f0d2ff166c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2325f2ba08 CR3: 0000000073bf9000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> inode_unlock include/linux/fs.h:792 [inline] ovl_workdir_create+0x57f/0x630 fs/overlayfs/super.c:839 ovl_make_workdir fs/overlayfs/super.c:1376 [inline] ovl_get_workdir+0x37c/0x1230 fs/overlayfs/super.c:1526 ovl_fill_super+0x1824/0x2a30 fs/overlayfs/super.c:2082 mount_nodev+0x52/0xe0 fs/super.c:1446 legacy_get_tree+0xe6/0x180 fs/fs_context.c:611 vfs_get_tree+0x88/0x270 fs/super.c:1530 do_new_mount+0x24a/0xa40 fs/namespace.c:3034 do_mount fs/namespace.c:3377 [inline] __do_sys_mount fs/namespace.c:3585 [inline] __se_sys_mount+0x2e3/0x3d0 fs/namespace.c:3562 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f0d308d5819 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 d8 64 89 01 48 RSP: 002b:00007f0d2ff16028 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f0d30b4f090 RCX: 00007f0d308d5819 RDX: 0000200000000440 RSI: 0000200000000100 RDI: 0000000000000000 RBP: 00007f0d3096bc91 R08: 0000200000000080 R09: 0000000000000000 R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f0d30b4f128 R14: 00007f0d30b4f090 R15: 00007fff072af018 </TASK>

Crashes (5):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2026/04/05 00:37	linux-5.15.y	91d48252ad4b	4440e7c2	.config	console log	report	syz / log	C		[disk image] [vmlinux] [kernel image] [mounted in repro]	ci2-linux-5-15-kasan	WARNING in ovl_workdir_create
2026/04/04 23:29	linux-5.15.y	91d48252ad4b	4440e7c2	.config	console log	report	syz / log	C		[disk image] [vmlinux] [kernel image] [mounted in repro]	ci2-linux-5-15-kasan	WARNING in ovl_workdir_create
2026/04/04 22:18	linux-5.15.y	91d48252ad4b	4440e7c2	.config	console log	report	syz / log	C		[disk image] [vmlinux] [kernel image] [mounted in repro]	ci2-linux-5-15-kasan	WARNING in ovl_workdir_create
2026/04/04 20:46	linux-5.15.y	91d48252ad4b	4440e7c2	.config	console log	report	syz / log			[disk image] [vmlinux] [kernel image] [mounted in repro]	ci2-linux-5-15-kasan	WARNING in ovl_workdir_create
2026/04/04 19:44	linux-5.15.y	91d48252ad4b	4440e7c2	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-5-15-kasan	WARNING in ovl_workdir_create

Crashes (5):

Assets (help?)