syzbot


WARNING in path_openat

Status: upstream: reported C repro on 2022/12/02 03:18
Reported-by: syzbot+be8872fcb764bf9fea73@syzkaller.appspotmail.com
First crash: 69d, last: 2d15h

Cause bisection: failed (bisect log)

Sample crash report:
------------[ cut here ]------------
DEBUG_RWSEMS_WARN_ON((rwsem_owner(sem) != current) && !rwsem_test_oflags(sem, RWSEM_NONSPINNABLE)): count = 0x0, magic = 0xffff88807104ea70, owner = 0x0, curr 0xffff8880196757c0, list empty
WARNING: CPU: 0 PID: 7935 at kernel/locking/rwsem.c:1361 __up_write kernel/locking/rwsem.c:1360 [inline]
WARNING: CPU: 0 PID: 7935 at kernel/locking/rwsem.c:1361 up_write+0x4f9/0x580 kernel/locking/rwsem.c:1615
Modules linked in:
CPU: 0 PID: 7935 Comm: syz-executor316 Not tainted 6.2.0-rc5-syzkaller-00047-g7c46948a6e9c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
RIP: 0010:__up_write kernel/locking/rwsem.c:1360 [inline]
RIP: 0010:up_write+0x4f9/0x580 kernel/locking/rwsem.c:1615
Code: c7 00 ad ed 8a 48 c7 c6 a0 af ed 8a 48 8b 54 24 28 48 8b 4c 24 18 4d 89 e0 4c 8b 4c 24 30 31 c0 53 e8 9b 5a e8 ff 48 83 c4 08 <0f> 0b e9 6b fd ff ff 48 c7 c1 18 cb 96 8e 80 e1 07 80 c1 03 38 c1
RSP: 0018:ffffc9000b7cf860 EFLAGS: 00010296
RAX: 4643b7f86e564100 RBX: ffffffff8aedade0 RCX: ffff8880196757c0
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffffc9000b7cf930 R08: ffffffff816f2b8d R09: fffff520016f9ec5
R10: fffff520016f9ec5 R11: 1ffff920016f9ec4 R12: 0000000000000000
R13: ffff88807104ea70 R14: 1ffff920016f9f14 R15: dffffc0000000000
FS:  00007ff043008700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000561cee05f058 CR3: 0000000021d9a000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 inode_unlock include/linux/fs.h:761 [inline]
 open_last_lookups fs/namei.c:3485 [inline]
 path_openat+0x14ff/0x2dd0 fs/namei.c:3711
 do_filp_open+0x264/0x4f0 fs/namei.c:3741
 do_sys_openat2+0x124/0x4e0 fs/open.c:1310
 do_sys_open fs/open.c:1326 [inline]
 __do_sys_creat fs/open.c:1402 [inline]
 __se_sys_creat fs/open.c:1396 [inline]
 __x64_sys_creat+0x11f/0x160 fs/open.c:1396
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7ff04b2814a9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 15 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff0430082f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
RAX: ffffffffffffffda RBX: 00007ff04b326790 RCX: 00007ff04b2814a9
RDX: 00007ff04b2814a9 RSI: 0000000000000106 RDI: 0000000020000200
RBP: 00007ff04b2f2c88 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000600
R13: 0030656c69662f2e R14: 0000000020000b80 R15: 00007ff04b326798
 </TASK>

Crashes (25):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets Title
ci2-upstream-fs 2023/01/26 23:55 upstream 7c46948a6e9c 9dfcf09c .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] WARNING in path_openat
ci-upstream-kasan-gce-smack-root 2023/01/18 18:42 upstream c1649ec55708 42660d9e .config console log report syz [disk image] [vmlinux] [kernel image] [mounted in repro] WARNING in path_openat
ci2-upstream-fs 2023/01/11 07:15 upstream 40c18f363a08 48bc529a .config console log report syz [disk image] [vmlinux] [kernel image] [mounted in repro] WARNING in path_openat
ci2-upstream-fs 2023/02/02 18:53 upstream 9f266ccaa2f5 16d19e30 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in path_openat
ci2-upstream-fs 2023/02/01 02:59 upstream 22b8077d0fce b68fb8d6 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in path_openat
ci2-upstream-fs 2023/01/31 15:40 upstream 22b8077d0fce b68fb8d6 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in path_openat
ci2-upstream-fs 2023/01/28 12:12 upstream 5af6ce704936 9dfcf09c .config console log report info [disk image] [vmlinux] [kernel image] WARNING in path_openat
ci2-upstream-fs 2023/01/28 01:11 upstream 83abd4d4c4be 9dfcf09c .config console log report info [disk image] [vmlinux] [kernel image] WARNING in path_openat
ci2-upstream-fs 2023/01/27 07:27 upstream 7c46948a6e9c 9dfcf09c .config console log report info [disk image] [vmlinux] [kernel image] WARNING in path_openat
ci2-upstream-fs 2023/01/24 10:26 upstream 7bf70dbb1882 9dfcf09c .config console log report info [disk image] [vmlinux] [kernel image] WARNING in path_openat
ci2-upstream-fs 2023/01/23 08:45 upstream 2475bf0250de 44388686 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in path_openat
ci-upstream-kasan-gce-root 2023/01/21 12:43 upstream f883675bf652 559a440a .config console log report info [disk image] [vmlinux] [kernel image] WARNING in path_openat
ci-upstream-kasan-gce-root 2023/01/20 16:15 upstream d368967cb103 559a440a .config console log report info [disk image] [vmlinux] [kernel image] WARNING in path_openat
ci2-upstream-fs 2023/01/19 11:34 upstream 7287904c8771 66fca3ae .config console log report info [disk image] [vmlinux] [kernel image] WARNING in path_openat
ci-upstream-kasan-gce-smack-root 2023/01/18 08:52 upstream c1649ec55708 42660d9e .config console log report info [disk image] [vmlinux] [kernel image] WARNING in path_openat
ci-upstream-kasan-gce-root 2023/01/18 00:47 upstream 6e50979a9c87 aedf5331 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in path_openat
ci2-upstream-fs 2023/01/15 05:39 upstream 97ec4d559d93 a63719e7 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in path_openat
ci2-upstream-fs 2023/01/13 10:40 upstream c757fc92a3f7 96166539 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in path_openat
ci2-upstream-fs 2023/01/11 01:45 upstream 40c18f363a08 48bc529a .config console log report info [disk image] [vmlinux] [kernel image] WARNING in path_openat
ci2-upstream-fs 2023/01/09 18:59 upstream 1fe4fd6f5cad 1dac8c7a .config console log report info [disk image] [vmlinux] [kernel image] WARNING in path_openat
ci2-upstream-fs 2023/01/06 14:26 upstream 41c03ba9beea 1dac8c7a .config console log report info [disk image] [vmlinux] [kernel image] WARNING in path_openat
ci2-upstream-fs 2023/01/05 04:59 upstream 512dee0c00ad 1dac8c7a .config console log report info [disk image] [vmlinux] [kernel image] WARNING in path_openat
ci2-upstream-fs 2023/01/03 13:44 upstream 69b41ac87e4a f0036e18 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in path_openat
ci2-upstream-fs 2023/01/02 00:24 upstream e4cf7c25bae5 ab32d508 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in path_openat
ci2-upstream-fs 2022/11/28 03:08 upstream cf562a45a0d5 f4470a7b .config console log report info [disk image] [vmlinux] [kernel image] WARNING in path_openat
* Struck through repros no longer work on HEAD.