syzbot


Internal error in do_vfs_ioctl

Status: upstream: reported C repro on 2025/08/08 15:17
Bug presence: origin:lts-only
[Documentation on labels]
Reported-by: syzbot+2a75d7c5474ce8fa0ed5@syzkaller.appspotmail.com
First crash: 20d, last: 8h54m
Bug presence (2)
Date Name Commit Repro Result
2025/08/12 linux-5.15.y (ToT) c79648372d02 C [report] Internal error in do_vfs_ioctl
2025/08/12 upstream (ToT) 8742b2d8935f C Didn't crash

Sample crash report:
gfs2: fsid=syz:syz.0: first mount done, others may mount
Internal error: Oops - BTI: 0000000036000001 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 4259 Comm: syz.0.17 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 : ioctl_setflags fs/ioctl.c:728 [inline]
pc : do_vfs_ioctl+0xe80/0x2370 fs/ioctl.c:843
lr : ioctl_setflags fs/ioctl.c:727 [inline]
lr : do_vfs_ioctl+0xe58/0x2370 fs/ioctl.c:843
sp : ffff80001f797a00
x29: ffff80001f797cd0 x28: dfff800000000000 x27: ffff700003ef2f48
x26: 1fffe00018a87a38 x25: ffff80001f797a40 x24: 0000000000000000
x23: ffff0000e2bf9318 x22: 00000000fffffff2 x21: ffff8000141efd40
x20: ffff0000d8a12000 x19: 0000000000000000 x18: 0000000000000000
x17: 0000000000000000 x16: ffff800008922504 x15: 00000000c020660b
x14: 0000000000ff0100 x13: 1ffff0000282e06b x12: 0000000000ff0100
x11: 0000000000000000 x10: 0000000000000000 x9 : 0000ffffffffffff
x8 : 0000000000000000 x7 : ffff800008750ed4 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000001
x2 : 0000000000000008 x1 : 0000000000000001 x0 : 0000000000000000
Call trace:
 ioctl_setflags fs/ioctl.c:727 [inline]
 do_vfs_ioctl+0xe80/0x2370 fs/ioctl.c:843
 __do_sys_ioctl fs/ioctl.c:872 [inline]
 __se_sys_ioctl fs/ioctl.c:860 [inline]
 __arm64_sys_ioctl+0xe4/0x1c8 fs/ioctl.c:860
 __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: ea29011f 9a9f026a d503229f b8400958 (2a1603e1) 
---[ end trace 8beb037ba91572c7 ]---
----------------
Code disassembly (best guess):
   0:	ea29011f 	bics	xzr, x8, x9
   4:	9a9f026a 	csel	x10, x19, xzr, eq	// eq = none
   8:	d503229f 	csdb
   c:	b8400958 	ldtr	w24, [x10]
* 10:	2a1603e1 	mov	w1, w22 <-- trapping instruction

Crashes (1067):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/08/27 18:56 linux-5.15.y c79648372d02 e12e5ba4 .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 do_vfs_ioctl
2025/08/27 14:15 linux-5.15.y c79648372d02 e12e5ba4 .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 do_vfs_ioctl
2025/08/11 10:59 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 do_vfs_ioctl
2025/08/10 20:57 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 do_vfs_ioctl
2025/08/28 19:28 linux-5.15.y c79648372d02 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in do_vfs_ioctl
2025/08/28 18:20 linux-5.15.y c79648372d02 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in do_vfs_ioctl
2025/08/28 15:47 linux-5.15.y c79648372d02 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in do_vfs_ioctl
2025/08/28 14:21 linux-5.15.y c79648372d02 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in do_vfs_ioctl
2025/08/28 09:58 linux-5.15.y c79648372d02 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in do_vfs_ioctl
2025/08/28 08:52 linux-5.15.y c79648372d02 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in do_vfs_ioctl
2025/08/28 06:04 linux-5.15.y c79648372d02 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in do_vfs_ioctl
2025/08/28 05:04 linux-5.15.y c79648372d02 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in do_vfs_ioctl
2025/08/28 03:40 linux-5.15.y c79648372d02 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in do_vfs_ioctl
2025/08/28 03:31 linux-5.15.y c79648372d02 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in do_vfs_ioctl
2025/08/28 01:58 linux-5.15.y c79648372d02 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in do_vfs_ioctl
2025/08/28 00:28 linux-5.15.y c79648372d02 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in do_vfs_ioctl
2025/08/27 21:29 linux-5.15.y c79648372d02 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in do_vfs_ioctl
2025/08/27 20:29 linux-5.15.y c79648372d02 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in do_vfs_ioctl
2025/08/27 16:41 linux-5.15.y c79648372d02 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in do_vfs_ioctl
2025/08/27 15:54 linux-5.15.y c79648372d02 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in do_vfs_ioctl
2025/08/27 11:33 linux-5.15.y c79648372d02 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in do_vfs_ioctl
2025/08/27 10:12 linux-5.15.y c79648372d02 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in do_vfs_ioctl
2025/08/27 05:42 linux-5.15.y c79648372d02 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in do_vfs_ioctl
2025/08/27 05:38 linux-5.15.y c79648372d02 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in do_vfs_ioctl
2025/08/27 03:50 linux-5.15.y c79648372d02 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in do_vfs_ioctl
2025/08/27 02:29 linux-5.15.y c79648372d02 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in do_vfs_ioctl
2025/08/27 02:26 linux-5.15.y c79648372d02 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in do_vfs_ioctl
2025/08/27 01:25 linux-5.15.y c79648372d02 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in do_vfs_ioctl
2025/08/26 23:36 linux-5.15.y c79648372d02 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in do_vfs_ioctl
2025/08/26 21:51 linux-5.15.y c79648372d02 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in do_vfs_ioctl
2025/08/26 20:34 linux-5.15.y c79648372d02 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in do_vfs_ioctl
2025/08/26 19:09 linux-5.15.y c79648372d02 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in do_vfs_ioctl
2025/08/26 18:08 linux-5.15.y c79648372d02 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in do_vfs_ioctl
2025/08/26 16:47 linux-5.15.y c79648372d02 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in do_vfs_ioctl
2025/08/26 14:04 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in do_vfs_ioctl
2025/08/26 12:32 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in do_vfs_ioctl
2025/08/26 10:23 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in do_vfs_ioctl
2025/08/26 08:57 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in do_vfs_ioctl
2025/08/26 07:53 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in do_vfs_ioctl
2025/08/26 06:36 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in do_vfs_ioctl
2025/08/26 05:28 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in do_vfs_ioctl
2025/08/26 02:54 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in do_vfs_ioctl
2025/08/26 01:46 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in do_vfs_ioctl
2025/08/25 22:59 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in do_vfs_ioctl
2025/08/25 19:21 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in do_vfs_ioctl
2025/08/25 17:58 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in do_vfs_ioctl
2025/08/25 12:18 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in do_vfs_ioctl
2025/08/25 09:54 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in do_vfs_ioctl
2025/08/08 15:17 linux-5.15.y c79648372d02 32a0e5ed .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in do_vfs_ioctl
* Struck through repros no longer work on HEAD.