WARNING in chmod_common (2)

Date	Name	Commit	Repro	Result
2025/04/05	upstream (ToT)	a8662bcd2ff1	C	[report] unregister_netdevice: waiting for DEV to become free

Date

Name

Commit

Repro

Result

2025/04/05

upstream (ToT)

a8662bcd2ff1

[report] unregister_netdevice: waiting for DEV to become free

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
linux-6.1	WARNING in chmod_common				1	318d	318d	0/3	auto-obsoleted due to no activity on 2024/08/29 23:15
upstream	WARNING in chmod_common fs				9	111d	359d	0/28	auto-obsoleted due to no activity on 2025/03/15 12:07

------------[ cut here ]------------ DEBUG_RWSEMS_WARN_ON((rwsem_owner(sem) != current) && !rwsem_test_oflags(sem, RWSEM_NONSPINNABLE)): count = 0x0, magic = 0xffff888069886310, owner = 0x0, curr 0xffff88807cc7bb80, list empty WARNING: CPU: 0 PID: 4600 at kernel/locking/rwsem.c:1372 __up_write kernel/locking/rwsem.c:1371 [inline] WARNING: CPU: 0 PID: 4600 at kernel/locking/rwsem.c:1372 up_write+0x4f5/0x580 kernel/locking/rwsem.c:1626 Modules linked in: CPU: 0 PID: 4600 Comm: syz-executor198 Not tainted 6.1.132-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:__up_write kernel/locking/rwsem.c:1371 [inline] RIP: 0010:up_write+0x4f5/0x580 kernel/locking/rwsem.c:1626 Code: 48 c7 c7 40 11 0c 8b 48 c7 c6 80 13 0c 8b 48 8b 54 24 28 48 8b 4c 24 18 4d 89 e0 4c 8b 4c 24 30 53 e8 1f ba e8 ff 48 83 c4 08 <0f> 0b e9 71 fd ff ff 48 c7 c1 f8 ea a0 8e 80 e1 07 80 c1 03 38 c1 RSP: 0018:ffffc900044a7c00 EFLAGS: 00010296 RAX: bc53a5c9aaacce00 RBX: ffffffff8b0c1220 RCX: ffff88807cc7bb80 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc900044a7cd0 R08: ffffffff8152c26e R09: fffff52000894ee1 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 R13: ffff888069886310 R14: 1ffff92000894f88 R15: dffffc0000000000 FS: 00007f60461536c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd010f8b18 CR3: 00000000741f3000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> inode_unlock include/linux/fs.h:763 [inline] chmod_common+0x2b4/0x4b0 fs/open.c:609 do_fchmodat fs/open.c:645 [inline] __do_sys_chmod fs/open.c:663 [inline] __se_sys_chmod fs/open.c:661 [inline] __x64_sys_chmod+0xf4/0x180 fs/open.c:661 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f60461c2bf9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 81 1d 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:00007f6046153218 EFLAGS: 00000246 ORIG_RAX: 000000000000005a RAX: ffffffffffffffda RBX: 00007f60462636d8 RCX: 00007f60461c2bf9 RDX: 0000000000000000 RSI: 000000000000018e RDI: 0000200000021d00 RBP: 00007f60462636d0 R08: 00007ffd010fa2d7 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f604620f7e0 R13: 0000200000021d00 R14: 0000200000000100 R15: 0000200000000300 </TASK>

Crashes (2):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2025/04/04 22:23	linux-6.1.y	8e60a714ba3b	1c4febdb	.config	console log	report	syz / log	C		[disk image] [vmlinux] [kernel image] [mounted in repro]	ci2-linux-6-1-kasan	WARNING in chmod_common
2025/04/04 16:09	linux-6.1.y	8e60a714ba3b	1c4febdb	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-6-1-kasan	WARNING in chmod_common

Crashes (2):

Assets (help?)