WARNING in ovl_workdir

Title	Replies (including bot)	Last reply
[syzbot] [overlayfs?] WARNING in ovl_workdir_create (3)	2 (3)	2024/05/17 15:43

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[syzbot] [overlayfs?] WARNING in ovl_workdir_create (3)

2 (3)

2024/05/17 15:43

Kernel	Title	Count	Last	Reported	Patched	Status
upstream	WARNING in ovl_workdir_create overlayfs	1	702d	698d	0/28	auto-obsoleted due to no activity on 2023/04/20 02:11
linux-5.15	WARNING in ovl_workdir_create	2	75d	150d	0/3	upstream: reported on 2024/06/25 09:25
linux-6.1	WARNING in ovl_workdir_create	1	189d	189d	0/3	auto-obsoleted due to no activity on 2024/08/25 13:40
upstream	WARNING in ovl_workdir_create (2) overlayfs	1	378d	374d	0/28	auto-obsoleted due to no activity on 2024/02/18 01:53

------------[ cut here ]------------ DEBUG_RWSEMS_WARN_ON((rwsem_owner(sem) != current) && !rwsem_test_oflags(sem, RWSEM_NONSPINNABLE)): count = 0x0, magic = 0xffff888077f311f0, owner = 0x0, curr 0xffff8880787ebc00, list empty WARNING: CPU: 1 PID: 8339 at kernel/locking/rwsem.c:1369 __up_write kernel/locking/rwsem.c:1369 [inline] WARNING: CPU: 1 PID: 8339 at kernel/locking/rwsem.c:1369 up_write+0x469/0x520 kernel/locking/rwsem.c:1632 Modules linked in: CPU: 1 PID: 8339 Comm: syz-executor.2 Not tainted 6.9.0-rc7-syzkaller-00056-g45db3ab70092 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 RIP: 0010:__up_write kernel/locking/rwsem.c:1369 [inline] RIP: 0010:up_write+0x469/0x520 kernel/locking/rwsem.c:1632 Code: ea 03 80 3c 02 00 75 53 48 8b 13 4d 89 f1 41 55 4d 89 f8 4c 89 e1 48 c7 c6 40 b7 2c 8b 48 c7 c7 60 b6 2c 8b e8 08 91 e5 ff 90 <0f> 0b 90 90 5a e9 96 fc ff ff 48 89 ef e8 e5 26 7f 00 e9 03 fd ff RSP: 0018:ffffc90010ac7928 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff888077f311f0 RCX: ffffc9000baa6000 RDX: 0000000000040000 RSI: ffffffff81517126 RDI: 0000000000000001 RBP: ffff888077f311f8 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000002 R12: ffff888077f311f0 R13: ffffffff8b2cb5a0 R14: ffff8880787ebc00 R15: 0000000000000000 FS: 00007f0eebfff6c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020098000 CR3: 0000000021f12000 CR4: 0000000000350ef0 Call Trace: <TASK> inode_unlock include/linux/fs.h:800 [inline] ovl_workdir_create+0x33e/0x820 fs/overlayfs/super.c:359 ovl_make_workdir fs/overlayfs/super.c:656 [inline] ovl_get_workdir fs/overlayfs/super.c:814 [inline] ovl_fill_super+0xe6b/0x6720 fs/overlayfs/super.c:1382 vfs_get_super fs/super.c:1268 [inline] get_tree_nodev+0xdd/0x190 fs/super.c:1287 vfs_get_tree+0x92/0x380 fs/super.c:1779 do_new_mount fs/namespace.c:3352 [inline] path_mount+0x14e6/0x1f20 fs/namespace.c:3679 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount fs/namespace.c:3875 [inline] __x64_sys_mount+0x297/0x320 fs/namespace.c:3875 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcf/0x260 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f0eec47dd69 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f0eebfff0c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f0eec5ac050 RCX: 00007f0eec47dd69 RDX: 0000000020000080 RSI: 00000000200000c0 RDI: 0000000000000000 RBP: 00007f0eec4ca49e R08: 0000000020000200 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f0eec5ac050 R15: 00007ffe9e328388 </TASK>

Crashes (1):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2024/05/09 18:22	upstream	45db3ab70092	de979bc2	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-badwrites-root	WARNING in ovl_workdir_create

Crashes (1):

Assets (help?)