syzbot


WARNING in do_mknodat (3)

Status: moderation: reported on 2024/03/01 11:23
Subsystems: fs
[Documentation on labels]
Reported-by: syzbot+82c0a707f7b49f32d011@syzkaller.appspotmail.com
First crash: 395d, last: 5d16h
Similar bugs (8)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in do_mknodat fs 1 826d 770d 0/28 closed as invalid on 2023/02/16 16:02
linux-6.1 WARNING in do_mknodat 1 511d 511d 0/3 auto-obsoleted due to no activity on 2024/02/10 13:02
upstream WARNING in do_mknodat (2) fs 11 496d 764d 0/28 auto-obsoleted due to no activity on 2024/02/16 05:28
linux-6.1 WARNING in do_mknodat (2) 39 279d 346d 0/3 auto-obsoleted due to no activity on 2024/08/30 19:08
linux-5.15 WARNING in do_mknodat (3) 7 64d 161d 0/3 upstream: reported on 2024/10/17 18:39
linux-6.1 WARNING in do_mknodat (3) 26 9d01h 172d 0/3 upstream: reported on 2024/10/06 10:51
linux-5.15 WARNING in do_mknodat (2) 4 300d 477d 0/3 auto-obsoleted due to no activity on 2024/09/08 20:03
linux-5.15 WARNING in do_mknodat 1 589d 589d 0/3 auto-obsoleted due to no activity on 2023/11/25 05:54

Sample crash report:
------------[ cut here ]------------
DEBUG_RWSEMS_WARN_ON((rwsem_owner(sem) != current) && !rwsem_test_oflags(sem, RWSEM_NONSPINNABLE)): count = 0x0, magic = 0xffff88805afadb48, owner = 0x0, curr 0xffff888034ab9e00, list empty
WARNING: CPU: 1 PID: 7210 at kernel/locking/rwsem.c:1368 __up_write kernel/locking/rwsem.c:1367 [inline]
WARNING: CPU: 1 PID: 7210 at kernel/locking/rwsem.c:1368 up_write+0x502/0x590 kernel/locking/rwsem.c:1630
Modules linked in:
CPU: 1 UID: 0 PID: 7210 Comm: syz.6.156 Not tainted 6.13.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
RIP: 0010:__up_write kernel/locking/rwsem.c:1367 [inline]
RIP: 0010:up_write+0x502/0x590 kernel/locking/rwsem.c:1630
Code: c7 c7 e0 8a 0a 8c 48 c7 c6 00 8d 0a 8c 48 8b 54 24 28 48 8b 4c 24 18 4d 89 e0 4c 8b 4c 24 30 53 e8 e3 21 e6 ff 48 83 c4 08 90 <0f> 0b 90 90 e9 6a fd ff ff 48 c7 c1 84 81 18 90 80 e1 07 80 c1 03
RSP: 0018:ffffc90004d67d20 EFLAGS: 00010292
RAX: a511dc04bda02b00 RBX: ffffffff8c0a8bc0 RCX: 0000000000080000
RDX: ffffc9000e09f000 RSI: 0000000000009310 RDI: 0000000000009311
RBP: ffffc90004d67df0 R08: ffffffff81601962 R09: fffffbfff1cfa210
R10: dffffc0000000000 R11: fffffbfff1cfa210 R12: 0000000000000000
R13: ffff88805afadb48 R14: 1ffff920009acfac R15: dffffc0000000000
FS:  00007f3d1fc506c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005589f083f950 CR3: 0000000033754000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 inode_unlock include/linux/fs.h:823 [inline]
 done_path_create fs/namei.c:4131 [inline]
 do_mknodat+0x4c5/0x5b0 fs/namei.c:4254
 __do_sys_mknod fs/namei.c:4272 [inline]
 __se_sys_mknod fs/namei.c:4270 [inline]
 __x64_sys_mknod+0x8c/0xa0 fs/namei.c:4270
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3d1ed85d19
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:00007f3d1fc50038 EFLAGS: 00000246 ORIG_RAX: 0000000000000085
RAX: ffffffffffffffda RBX: 00007f3d1ef76080 RCX: 00007f3d1ed85d19
RDX: 000000000000070c RSI: 0000000000006210 RDI: 0000000020000080
RBP: 00007f3d1ee01a20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f3d1ef76080 R15: 00007ffeab2d4968
 </TASK>

Crashes (154):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/12/16 04:18 upstream 78d4f34e2115 7cbfbb3a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in do_mknodat
2024/11/25 05:40 upstream 9f16d5e6f220 68da6d95 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in do_mknodat
2024/11/09 04:36 upstream f1dce1f09380 6b856513 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in do_mknodat
2024/06/19 21:01 upstream 2ccbdf43d5e7 41b7e219 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in do_mknodat
2024/05/19 10:54 upstream 0450d2083be6 c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in do_mknodat
2024/04/25 23:53 upstream e33c4963bf53 8bdc0f22 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root WARNING in do_mknodat
2024/02/26 11:18 upstream d206a76d7d27 8d446f15 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in do_mknodat
2025/03/22 14:21 upstream 88d324e69ea9 c6512ef7 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in do_mknodat
2025/03/19 01:21 upstream 76b6905c11fd 22a6c2b1 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in do_mknodat
2025/03/17 18:33 upstream 4701f33a1070 489e2dc8 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in do_mknodat
2025/03/09 08:06 upstream b7c90e3e717a 163f510d .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in do_mknodat
2025/03/04 06:45 upstream 99fa936e8e4f c3901742 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in do_mknodat
2025/03/03 11:44 upstream 7eb172143d55 c3901742 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in do_mknodat
2025/03/02 12:22 upstream ece144f151ac c3901742 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in do_mknodat
2025/02/28 06:35 upstream 1e15510b71c9 6a8fcbc4 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in do_mknodat
2025/02/26 05:49 upstream 2a1944bff549 d34966d1 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in do_mknodat
2025/02/25 15:10 upstream d082ecbc71e9 d34966d1 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in do_mknodat
2025/02/21 04:08 upstream e9a8cac0bf89 0808a665 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in do_mknodat
2025/02/19 01:25 upstream 6537cfb395f3 9a14138f .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in do_mknodat
2025/02/12 15:09 upstream 09fbf3d50205 b27c2402 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in do_mknodat
2025/02/11 18:01 upstream febbc555cf0f f2baddf5 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in do_mknodat
2025/02/11 13:15 upstream febbc555cf0f 43f51a00 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in do_mknodat
2025/02/06 02:36 upstream 92514ef226f5 577d049b .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in do_mknodat
2025/02/02 22:29 upstream 69e858e0b8b2 568559e4 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in do_mknodat
2025/01/29 01:22 upstream 805ba04cb7cc 865ef71e .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in do_mknodat
2025/01/19 22:02 upstream 9528d418de4d f2cb035c .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in do_mknodat
2025/01/16 22:06 upstream ce69b4019001 f9e07a6e .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in do_mknodat
2025/01/15 18:04 upstream 619f0b6fad52 968edaf4 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in do_mknodat
2025/01/11 07:03 upstream 77a903cd8e5a 6dbc6a9b .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in do_mknodat
2025/01/02 16:38 upstream 56e6a3499e14 d3ccff63 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in do_mknodat
2024/12/31 15:50 upstream ccb98ccef0e5 d3ccff63 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in do_mknodat
2024/12/23 00:40 upstream bcde95ce32b6 b4fbdbd4 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in do_mknodat
2024/12/15 06:06 upstream 2d8308bf5b67 7cbfbb3a .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in do_mknodat
2024/12/14 20:36 upstream a446e965a188 7cbfbb3a .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in do_mknodat
2024/12/10 16:57 upstream 7cb1b4663150 cfc402b4 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in do_mknodat
2024/12/10 06:57 upstream 7cb1b4663150 deb72877 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in do_mknodat
2024/12/08 16:46 upstream 7503345ac5f5 9ac0fdc6 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in do_mknodat
2024/11/23 07:43 upstream 06afb0f36106 68da6d95 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in do_mknodat
2024/10/23 13:07 upstream c2ee9f594da8 15fa2979 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in do_mknodat
2024/10/23 05:10 upstream c2ee9f594da8 15fa2979 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in do_mknodat
2024/09/13 15:08 upstream 196145c606d0 73e8a465 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in do_mknodat
2024/09/07 09:10 upstream b31c44928842 9750182a .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in do_mknodat
2024/06/02 16:35 upstream 83814698cf48 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in do_mknodat
2024/06/06 06:57 upstream 2df0193e62cf c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in do_mknodat
2024/12/05 01:55 linux-next bcf2acd8f64b 29f61fce .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in do_mknodat
2024/11/27 05:08 linux-next 6f3d2b5299b0 52b38cc1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in do_mknodat
2024/11/26 06:29 linux-next ed9a4ad6e5bd a84878fc .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in do_mknodat
2024/10/02 15:25 linux-next fe2173353674 a4c7fd36 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in do_mknodat
2024/10/01 06:58 linux-next 77df9e4bb222 bbd4e0a4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in do_mknodat
2024/09/27 16:00 linux-next 40e0c9d414f5 2b1784d6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in do_mknodat
2024/08/27 19:21 linux-next 6f923748057a 6c853ff9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in do_mknodat
2024/09/09 06:48 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci df54f4a16f82 9750182a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in do_mknodat
2024/09/09 05:29 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci df54f4a16f82 9750182a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in do_mknodat
2024/09/07 22:24 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci df54f4a16f82 9750182a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in do_mknodat
2024/08/23 00:16 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 048499f92ed7 295a4b50 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in do_mknodat
* Struck through repros no longer work on HEAD.