syzbot


WARNING in vfs_setxattr

Status: upstream: reported on 2024/08/26 12:20
Reported-by: syzbot+f98044ceb3f21d55d3d9@syzkaller.appspotmail.com
First crash: 166d, last: 4d21h
Similar bugs (4)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in vfs_setxattr fs 1 764d 760d 0/28 auto-obsoleted due to no activity on 2023/04/06 11:38
linux-6.1 WARNING in vfs_setxattr 103 14d 301d 0/3 upstream: reported on 2024/04/12 18:51
upstream WARNING in vfs_setxattr (2) fs 1 603d 599d 0/28 auto-obsoleted due to no activity on 2023/09/13 15:16
upstream WARNING in vfs_setxattr (3) fs 241 2h17m 297d 0/28 moderation: reported on 2024/04/17 05:51

Sample crash report:
------------[ cut here ]------------
DEBUG_RWSEMS_WARN_ON((rwsem_owner(sem) != current) && !rwsem_test_oflags(sem, RWSEM_NONSPINNABLE)): count = 0x0, magic = 0xffff888061d1f1d0, owner = 0x0, curr 0xffff888075cabb80, list empty
WARNING: CPU: 0 PID: 4309 at kernel/locking/rwsem.c:1350 __up_write kernel/locking/rwsem.c:1349 [inline]
WARNING: CPU: 0 PID: 4309 at kernel/locking/rwsem.c:1350 up_write+0x4f5/0x580 kernel/locking/rwsem.c:1604
Modules linked in:
CPU: 0 PID: 4309 Comm: syz.4.23 Not tainted 5.15.171-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:__up_write kernel/locking/rwsem.c:1349 [inline]
RIP: 0010:up_write+0x4f5/0x580 kernel/locking/rwsem.c:1604
Code: 48 c7 c7 00 1e 8b 8a 48 c7 c6 c0 20 8b 8a 48 8b 54 24 28 48 8b 4c 24 18 4d 89 e0 4c 8b 4c 24 30 53 e8 1f 09 ea ff 48 83 c4 08 <0f> 0b e9 71 fd ff ff 48 c7 c1 48 9a e9 8d 80 e1 07 80 c1 03 38 c1
RSP: 0018:ffffc900012efa40 EFLAGS: 00010292
RAX: 5c457ca482b22800 RBX: ffffffff8a8b1ee0 RCX: 0000000000040000
RDX: ffffc90004eb1000 RSI: 000000000000a7e0 RDI: 000000000000a7e1
RBP: ffffc900012efb10 R08: ffffffff81669a2c R09: ffffed10172067a8
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff888061d1f1d0 R14: 1ffff9200025df50 R15: dffffc0000000000
FS:  00007f4302c356c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30605ff8 CR3: 000000002bc26000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 inode_unlock include/linux/fs.h:794 [inline]
 vfs_setxattr+0x22f/0x420 fs/xattr.c:305
 do_setxattr fs/xattr.c:588 [inline]
 setxattr+0x27e/0x2e0 fs/xattr.c:611
 path_setxattr+0x1bc/0x2a0 fs/xattr.c:630
 __do_sys_setxattr fs/xattr.c:646 [inline]
 __se_sys_setxattr fs/xattr.c:642 [inline]
 __x64_sys_setxattr+0xb7/0xd0 fs/xattr.c:642
 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: 0033:0x7f43047de719
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f4302c35038 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc
RAX: ffffffffffffffda RBX: 00007f4304996058 RCX: 00007f43047de719
RDX: 0000000000000000 RSI: 0000000020000400 RDI: 0000000020000300
RBP: 00007f4304851616 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f4304996058 R15: 00007ffd48721528
 </TASK>

Crashes (7):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/11/12 21:40 linux-5.15.y 3c17fc483905 62026c85 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in vfs_setxattr
2024/11/08 20:44 linux-5.15.y 3c17fc483905 6b856513 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in vfs_setxattr
2024/09/14 21:42 linux-5.15.y 3a5928702e71 08d8a733 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in vfs_setxattr
2024/08/26 12:19 linux-5.15.y fa93fa65db6e d7d32352 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in vfs_setxattr
2025/02/03 16:13 linux-5.15.y c16c81c81336 a21a8419 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in vfs_setxattr
2024/11/25 21:43 linux-5.15.y 0a51d2d4527b 11dbc254 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in vfs_setxattr
2024/09/07 02:05 linux-5.15.y 14e468424d3e 9750182a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in vfs_setxattr
* Struck through repros no longer work on HEAD.