EXT2-fs (loop0): warning: mounting ext3 filesystem as ext2
Internal error: Oops - BTI: 0000000036000001 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 4190 Comm: syz.0.18 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 : ext2_ioctl+0x42c/0x8dc fs/ext2/ioctl.c:65
lr : sign_extend64 include/linux/bitops.h:183 [inline]
lr : __uaccess_mask_ptr arch/arm64/include/asm/uaccess.h:244 [inline]
lr : ext2_ioctl+0x3f8/0x8dc fs/ext2/ioctl.c:65
sp : ffff80001fba7ce0
x29: ffff80001fba7ce0 x28: ffff0000c6c33680 x27: 0000000000000004
x26: 1fffe00018d866d0 x25: dfff800000000000 x24: dfff800000000000
x23: ffff800008dc8298 x22: 0000000000400140 x21: 0000000000000000
x20: ffff0000ea6805a0 x19: 0000000000000000 x18: 0000000000000000
x17: 0000000000000002 x16: ffff800008dc86c4 x15: 0000000080087601
x14: 0000000000ff0100 x13: 1ffff0000282e06b x12: 0000000000080000
x11: 0000000000000c33 x10: 1fffe0001d4d00b4 x9 : 00000000fffffff2
x8 : 0000000000000000 x7 : ffff800008750ed4 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000001
x2 : 0000000000000008 x1 : 0000000000000001 x0 : 0000000000000000
Call trace:
 ext2_ioctl+0x42c/0x8dc fs/ext2/ioctl.c:65
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl fs/ioctl.c:860 [inline]
 __arm64_sys_ioctl+0x14c/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: 35001e48 2a1f03e9 b9400288 b8000aa8 (93407d20) 
---[ end trace 818304a051b63f9e ]---
----------------
Code disassembly (best guess):
   0:	35001e48 	cbnz	w8, 0x3c8
   4:	2a1f03e9 	mov	w9, wzr
   8:	b9400288 	ldr	w8, [x20]
   c:	b8000aa8 	sttr	w8, [x21]
* 10:	93407d20 	sxtw	x0, w9 <-- trapping instruction