syzbot


Internal error in sys_mount

Status: upstream: reported C repro on 2025/08/08 14:12
Reported-by: syzbot+f0746890032313ff22e4@syzkaller.appspotmail.com
First crash: 4d05h, last: 6m

Sample crash report:
cgroup: Unknown subsys name 'net'
Internal error: Oops - BTI: 0000000036000001 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 4050 Comm: syz-executor Not tainted 5.15.189-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025
pstate: 42400405 (nZcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=jc)
pc : copy_mount_options fs/namespace.c:3235 [inline]
pc : __do_sys_mount fs/namespace.c:3560 [inline]
pc : __se_sys_mount fs/namespace.c:3542 [inline]
pc : __arm64_sys_mount+0x2f8/0x5e4 fs/namespace.c:3542
lr : copy_mount_options fs/namespace.c:3235 [inline]
lr : __do_sys_mount fs/namespace.c:3560 [inline]
lr : __se_sys_mount fs/namespace.c:3542 [inline]
lr : __arm64_sys_mount+0x2d4/0x5e4 fs/namespace.c:3542
sp : ffff80001f437c80
x29: ffff80001f437d20 x28: 00000000fffffff2 x27: 0000ffffe5e41000
x26: ffff0000db5b9b40 x25: 0000000000000000 x24: 0000ffffe5e40161
x23: ffff0000c1ddc000 x22: 0000000000000e9f x21: dfff800000000000
x20: 00000000fffffe9f x19: 0000000000000000 x18: 0000000000000000
x17: 0000000000000000 x16: ffff8000089650ac x15: 0000ffffe5e40161
x14: 652d7a79732f2e00 x13: 1ffff0000282e06b x12: 0000000000ff0100
x11: 0000000000000000 x10: 0000ffffffffffff x9 : 0000ffffe5e41000
x8 : 0000ffffe5e41000 x7 : ffff800008750ed4 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000001
x2 : 0000000000000008 x1 : 0000000000000001 x0 : 0000000000000000
Call trace:
 copy_mount_options fs/namespace.c:3235 [inline]
 __do_sys_mount fs/namespace.c:3560 [inline]
 __se_sys_mount fs/namespace.c:3542 [inline]
 __arm64_sys_mount+0x2f8/0x5e4 fs/namespace.c:3542
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
Code: d503229f 2a1903fc 2a1903e0 38400933 (2a1c03e1) 
---[ end trace bbf8190882856c7e ]---
----------------
Code disassembly (best guess):
   0:	d503229f 	csdb
   4:	2a1903fc 	mov	w28, w25
   8:	2a1903e0 	mov	w0, w25
   c:	38400933 	ldtrb	w19, [x9]
* 10:	2a1c03e1 	mov	w1, w28 <-- trapping instruction

Crashes (1176):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/08/11 17:22 linux-5.15.y c79648372d02 32a0e5ed .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/11 16:23 linux-5.15.y c79648372d02 32a0e5ed .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/11 16:17 linux-5.15.y c79648372d02 32a0e5ed .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/11 12:05 linux-5.15.y c79648372d02 32a0e5ed .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/11 07:14 linux-5.15.y c79648372d02 32a0e5ed .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/11 05:20 linux-5.15.y c79648372d02 32a0e5ed .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/11 04:59 linux-5.15.y c79648372d02 32a0e5ed .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/11 04:16 linux-5.15.y c79648372d02 32a0e5ed .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/11 03:03 linux-5.15.y c79648372d02 32a0e5ed .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/11 00:41 linux-5.15.y c79648372d02 32a0e5ed .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/10 23:28 linux-5.15.y c79648372d02 32a0e5ed .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/10 19:47 linux-5.15.y c79648372d02 32a0e5ed .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/10 18:44 linux-5.15.y c79648372d02 32a0e5ed .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (clean fs)] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/10 18:19 linux-5.15.y c79648372d02 32a0e5ed .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/10 17:47 linux-5.15.y c79648372d02 32a0e5ed .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/10 17:06 linux-5.15.y c79648372d02 32a0e5ed .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/10 16:26 linux-5.15.y c79648372d02 32a0e5ed .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/10 16:25 linux-5.15.y c79648372d02 32a0e5ed .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/10 15:25 linux-5.15.y c79648372d02 32a0e5ed .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/10 15:07 linux-5.15.y c79648372d02 32a0e5ed .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/10 14:33 linux-5.15.y c79648372d02 32a0e5ed .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (clean fs)] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/10 14:19 linux-5.15.y c79648372d02 32a0e5ed .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/10 13:44 linux-5.15.y c79648372d02 32a0e5ed .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (clean fs)] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/10 09:32 linux-5.15.y c79648372d02 32a0e5ed .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/10 09:26 linux-5.15.y c79648372d02 32a0e5ed .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/11 18:19 linux-5.15.y c79648372d02 32a0e5ed .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/11 17:50 linux-5.15.y c79648372d02 32a0e5ed .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/11 13:32 linux-5.15.y c79648372d02 32a0e5ed .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/11 12:09 linux-5.15.y c79648372d02 32a0e5ed .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/11 10:38 linux-5.15.y c79648372d02 32a0e5ed .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/11 08:24 linux-5.15.y c79648372d02 32a0e5ed .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/11 06:28 linux-5.15.y c79648372d02 32a0e5ed .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/10 23:53 linux-5.15.y c79648372d02 32a0e5ed .config console log report syz / log [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/10 17:43 linux-5.15.y c79648372d02 32a0e5ed .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/10 14:49 linux-5.15.y c79648372d02 32a0e5ed .config console log report syz / log [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/10 14:09 linux-5.15.y c79648372d02 32a0e5ed .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/10 11:37 linux-5.15.y c79648372d02 32a0e5ed .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/12 18:37 linux-5.15.y c79648372d02 22ec1469 .config console log report [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/12 18:18 linux-5.15.y c79648372d02 22ec1469 .config console log report [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/12 17:10 linux-5.15.y c79648372d02 c06e8995 .config console log report [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/12 16:09 linux-5.15.y c79648372d02 c06e8995 .config console log report [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/12 15:57 linux-5.15.y c79648372d02 c06e8995 .config console log report [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/12 14:54 linux-5.15.y c79648372d02 c06e8995 .config console log report [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/12 14:21 linux-5.15.y c79648372d02 c06e8995 .config console log report [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/12 13:21 linux-5.15.y c79648372d02 c06e8995 .config console log report [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/12 13:18 linux-5.15.y c79648372d02 c06e8995 .config console log report [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/12 12:16 linux-5.15.y c79648372d02 c06e8995 .config console log report [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/12 11:52 linux-5.15.y c79648372d02 c06e8995 .config console log report [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/12 10:49 linux-5.15.y c79648372d02 c06e8995 .config console log report [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/12 10:00 linux-5.15.y c79648372d02 c06e8995 .config console log report [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/12 09:51 linux-5.15.y c79648372d02 c06e8995 .config console log report [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/12 08:48 linux-5.15.y c79648372d02 c06e8995 .config console log report [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/12 08:44 linux-5.15.y c79648372d02 c06e8995 .config console log report [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/12 07:44 linux-5.15.y c79648372d02 c06e8995 .config console log report [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/12 07:34 linux-5.15.y c79648372d02 c06e8995 .config console log report [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/12 06:33 linux-5.15.y c79648372d02 c06e8995 .config console log report [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/12 06:18 linux-5.15.y c79648372d02 c06e8995 .config console log report [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/12 05:17 linux-5.15.y c79648372d02 c06e8995 .config console log report [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/12 04:35 linux-5.15.y c79648372d02 c06e8995 .config console log report [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/12 04:09 linux-5.15.y c79648372d02 c06e8995 .config console log report [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/12 02:59 linux-5.15.y c79648372d02 c06e8995 .config console log report [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/12 02:42 linux-5.15.y c79648372d02 c06e8995 .config console log report [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/12 01:36 linux-5.15.y c79648372d02 c06e8995 .config console log report [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/12 00:47 linux-5.15.y c79648372d02 c06e8995 .config console log report [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/11 23:37 linux-5.15.y c79648372d02 c06e8995 .config console log report [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/11 23:29 linux-5.15.y c79648372d02 c06e8995 .config console log report [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/11 22:26 linux-5.15.y c79648372d02 c06e8995 .config console log report [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/11 21:35 linux-5.15.y c79648372d02 c06e8995 .config console log report [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/11 21:31 linux-5.15.y c79648372d02 c06e8995 .config console log report [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/11 20:30 linux-5.15.y c79648372d02 c06e8995 .config console log report [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/11 20:04 linux-5.15.y c79648372d02 c06e8995 .config console log report [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/11 19:03 linux-5.15.y c79648372d02 c06e8995 .config console log report [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/10 08:12 linux-5.15.y c79648372d02 32a0e5ed .config console log report [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/10 07:11 linux-5.15.y c79648372d02 32a0e5ed .config console log report [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/10 06:56 linux-5.15.y c79648372d02 32a0e5ed .config console log report [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/10 05:36 linux-5.15.y c79648372d02 32a0e5ed .config console log report [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/10 05:32 linux-5.15.y c79648372d02 32a0e5ed .config console log report [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/10 04:32 linux-5.15.y c79648372d02 32a0e5ed .config console log report [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/10 03:32 linux-5.15.y c79648372d02 32a0e5ed .config console log report [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
2025/08/08 14:12 linux-5.15.y c79648372d02 32a0e5ed .config console log report [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_mount
* Struck through repros no longer work on HEAD.