syzbot


WARNING in do_mkdirat

Status: upstream: reported C repro on 2022/12/03 14:52
Reported-by: syzbot+919c5a9be8433b8bf201@syzkaller.appspotmail.com
First crash: 68d, last: 5d23h

Cause bisection: failed (bisect log)
Last patch testing requests:
Created Duration User Patch Repo Result
2022/12/15 23:51 23m hdanton@sina.com patch https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master report log
2022/12/11 00:29 20m hdanton@sina.com patch https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 3ecc37918c80 report log
2022/12/10 01:14 24m hdanton@sina.com patch https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 0d1409e4ff08 report log

Sample crash report:
------------[ cut here ]------------
DEBUG_RWSEMS_WARN_ON((rwsem_owner(sem) != current) && !rwsem_test_oflags(sem, RWSEM_NONSPINNABLE)): count = 0x0, magic = 0xffff888070c35bb0, owner = 0x0, curr 0xffff888025b08000, list empty
WARNING: CPU: 0 PID: 5269 at kernel/locking/rwsem.c:1360 __up_write kernel/locking/rwsem.c:1360 [inline]
WARNING: CPU: 0 PID: 5269 at kernel/locking/rwsem.c:1360 up_write+0x429/0x520 kernel/locking/rwsem.c:1615
Modules linked in:
CPU: 0 PID: 5269 Comm: syz-executor416 Not tainted 6.2.0-rc3-syzkaller-00021-g7dd4b804e080 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:__up_write kernel/locking/rwsem.c:1360 [inline]
RIP: 0010:up_write+0x429/0x520 kernel/locking/rwsem.c:1615
Code: 3c 02 00 0f 85 da 00 00 00 48 8b 55 00 4d 89 f1 53 4d 89 f8 4c 89 e9 48 c7 c6 00 44 4c 8a 48 c7 c7 c0 41 4c 8a e8 27 df 5c 08 <0f> 0b 59 e9 d9 fc ff ff 48 89 df e8 97 91 6c 00 e9 16 fc ff ff 48
RSP: 0018:ffffc9000407fe08 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffffffff8a4c4100 RCX: 0000000000000000
RDX: ffff888025b08000 RSI: ffffffff8166721c RDI: fffff5200080ffb3
RBP: ffff888070c35bb0 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000000 R11: 0000000000000000 R12: ffff888070c35bb8
R13: ffff888070c35bb0 R14: ffff888025b08000 R15: 0000000000000000
FS:  00007f8fab186700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8fb34a3138 CR3: 000000001c46d000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 inode_unlock include/linux/fs.h:761 [inline]
 done_path_create fs/namei.c:3857 [inline]
 do_mkdirat+0x199/0x2f0 fs/namei.c:4064
 __do_sys_mkdirat fs/namei.c:4076 [inline]
 __se_sys_mkdirat fs/namei.c:4074 [inline]
 __x64_sys_mkdirat+0x119/0x170 fs/namei.c:4074
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f8fb3400cd9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 16 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:00007f8fab1862f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007f8fb34ab570 RCX: 00007f8fb3400cd9
RDX: 0000000000000000 RSI: 0000000020000200 RDI: 0000000000000004
RBP: 00007f8fb34ab57c R08: 00007f8fab186700 R09: 0000000000000000
R10: 00007f8fab186700 R11: 0000000000000246 R12: 00007f8fb3471878
R13: 0032656c69662f2e R14: 69662f7375622f2e R15: 00007f8fb34ab578
 </TASK>

Crashes (35):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets Title
ci-upstream-kasan-gce-root 2023/01/11 13:04 upstream 7dd4b804e080 1dac8c7a .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] WARNING in do_mkdirat
ci2-upstream-fs 2022/12/10 18:05 upstream 3ecc37918c80 67be1ae7 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] WARNING in do_mkdirat
ci-upstream-gce-arm64 2022/12/10 22:30 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci a5541c0811a0 67be1ae7 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] WARNING in do_mkdirat
ci2-upstream-fs 2022/12/09 19:50 upstream 0d1409e4ff08 67be1ae7 .config console log report syz [disk image] [vmlinux] [kernel image] [mounted in repro] WARNING in do_mkdirat
ci-upstream-linux-next-kasan-gce-root 2023/01/28 17:58 linux-next e2f86c02fdc9 9dfcf09c .config console log report syz [disk image] [vmlinux] [kernel image] [mounted in repro] WARNING in do_mkdirat
ci-upstream-kasan-gce-smack-root 2023/01/31 11:17 upstream 22b8077d0fce 9dfcf09c .config console log report info [disk image] [vmlinux] [kernel image] WARNING in do_mkdirat
ci2-upstream-fs 2023/01/30 21:22 upstream 6d796c50f84c b68fb8d6 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in do_mkdirat
ci2-upstream-fs 2023/01/29 18:09 upstream c96618275234 9dfcf09c .config console log report info [disk image] [vmlinux] [kernel image] WARNING in do_mkdirat
ci-upstream-kasan-gce-smack-root 2023/01/24 20:25 upstream 7bf70dbb1882 9dfcf09c .config console log report info [disk image] [vmlinux] [kernel image] WARNING in do_mkdirat
ci2-upstream-fs 2023/01/23 15:43 upstream 2475bf0250de 9dfcf09c .config console log report info [disk image] [vmlinux] [kernel image] WARNING in do_mkdirat
ci2-upstream-fs 2023/01/22 11:00 upstream 2241ab53cbb5 cc0f9968 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in do_mkdirat
ci2-upstream-fs 2023/01/22 00:58 upstream f883675bf652 cc0f9968 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in do_mkdirat
ci2-upstream-fs 2023/01/11 22:14 upstream 7dd4b804e080 96166539 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in do_mkdirat
ci2-upstream-fs 2022/12/29 16:13 upstream 1b929c02afd3 44712fbc .config console log report info [disk image] [vmlinux] [kernel image] WARNING in do_mkdirat
ci-upstream-kasan-gce-smack-root 2022/12/25 18:48 upstream 72a85e2b0a1e 9da18ae8 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in do_mkdirat
ci-upstream-kasan-gce-root 2022/12/25 02:13 upstream 72a85e2b0a1e 9da18ae8 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in do_mkdirat
ci2-upstream-fs 2022/12/24 14:42 upstream 51094a24b85e 9da18ae8 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in do_mkdirat
ci-upstream-kasan-gce-selinux-root 2022/12/24 02:17 upstream a27405b2ed9c 9da18ae8 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in do_mkdirat
ci2-upstream-fs 2022/12/19 14:55 upstream f9ff5644bcc0 05494336 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in do_mkdirat
ci-upstream-kasan-gce-smack-root 2022/12/18 22:37 upstream f9ff5644bcc0 05494336 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in do_mkdirat
ci2-upstream-fs 2022/12/15 14:52 upstream 041fae9c105a 6f9c033e .config console log report info [disk image] [vmlinux] [kernel image] WARNING in do_mkdirat
ci-upstream-kasan-gce-root 2022/12/15 11:05 upstream 041fae9c105a 6f9c033e .config console log report info [disk image] [vmlinux] [kernel image] WARNING in do_mkdirat
ci-upstream-kasan-gce-root 2022/12/12 01:20 upstream 830b3c68c1fb 67be1ae7 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in do_mkdirat
ci2-upstream-fs 2022/12/10 16:10 upstream 3ecc37918c80 67be1ae7 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in do_mkdirat
ci-upstream-kasan-gce-selinux-root 2022/12/09 02:43 upstream f3e8416619ce 1034e5fa .config console log report info [disk image] [vmlinux] [kernel image] WARNING in do_mkdirat
ci-upstream-kasan-gce-selinux-root 2022/12/08 12:55 upstream 479174d402bc 1034e5fa .config console log report info [disk image] [vmlinux] [kernel image] WARNING in do_mkdirat
ci2-upstream-fs 2022/12/08 09:46 upstream 479174d402bc d88f3abb .config console log report info [disk image] [vmlinux] [kernel image] WARNING in do_mkdirat
ci-upstream-kasan-gce-smack-root 2022/12/05 07:56 upstream c2bf05db6c78 e080de16 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in do_mkdirat
ci2-upstream-fs 2022/12/04 21:09 upstream c2bf05db6c78 e080de16 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in do_mkdirat
ci2-upstream-fs 2022/11/29 14:42 upstream ca57f02295f1 ca9683b8 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in do_mkdirat
ci-qemu-upstream-386 2022/12/24 19:55 upstream 72a85e2b0a1e 9da18ae8 .config console log report info WARNING in do_mkdirat
ci-qemu-upstream-386 2022/12/04 22:46 upstream 0ba09b173387 e080de16 .config console log report info WARNING in do_mkdirat
ci-upstream-linux-next-kasan-gce-root 2023/01/31 10:00 linux-next 80bd9028feca 9dfcf09c .config console log report info [disk image] [vmlinux] [kernel image] WARNING in do_mkdirat
ci-upstream-linux-next-kasan-gce-root 2022/12/13 07:39 linux-next 39ab32797f07 67be1ae7 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in do_mkdirat
ci-upstream-gce-arm64 2022/12/07 17:54 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci a5541c0811a0 d88f3abb .config console log report info [disk image] [vmlinux] [kernel image] WARNING in do_mkdirat
* Struck through repros no longer work on HEAD.