REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
REISERFS (device loop0): checking transaction log (loop0)
REISERFS (device loop0): Using r5 hash to sort names
REISERFS (device loop0): using 3.5.x disk format
REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage.
Internal error: Oops - BTI: 0000000036000001 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 4635 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026
pstate: 42400405 (nZcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=jc)
pc : reiserfs_ioctl+0x238/0x4b0 fs/reiserfs/ioctl.c:96
lr : sign_extend64 include/linux/bitops.h:185 [inline]
lr : __uaccess_mask_ptr arch/arm64/include/asm/uaccess.h:244 [inline]
lr : reiserfs_ioctl+0x204/0x4b0 fs/reiserfs/ioctl.c:96
sp : ffff80001f7b7cd0
x29: ffff80001f7b7cd0 x28: ffff0000ce161b40 x27: 0000000000000004
x26: 1fffe00019c2c368 x25: 1fffe0001c73b1df x24: dfff800000000000
x23: 00000000fffffff2 x22: 0000000000000000 x21: 0000000000000000
x20: ffff0000e39d9338 x19: ffff0000e39d8ef8 x18: 0000000000000000
x17: 0000000000000000 x16: ffff800008c4be18 x15: 000000000004ffff
x14: 0000000000000001 x13: 1ffff00002de788c x12: 0000000000000000
x11: ff80800008c4bde4 x10: 1fffe0001c73b267 x9 : 0000ffffffffffff
x8 : 0000000000000002 x7 : 0000000000000000 x6 : 0000000000000000
x5 : ffff8000170dd758 x4 : 0000000000000008 x3 : ffff8000082c5794
x2 : 0000000000000001 x1 : 0000000000000001 x0 : 0000000000000000
Call trace:
 reiserfs_ioctl+0x238/0x4b0 fs/reiserfs/ioctl.c:96
 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+0x98/0x28c arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x5c/0x140 arch/arm64/kernel/syscall.c:181
 el0_svc+0x78/0x1d0 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: 350010c8 2a1f03f7 b9400288 b8000ac8 (14000065) 
---[ end trace 399102e654863dca ]---
----------------
Code disassembly (best guess):
   0:	350010c8 	cbnz	w8, 0x218
   4:	2a1f03f7 	mov	w23, wzr
   8:	b9400288 	ldr	w8, [x20]
   c:	b8000ac8 	sttr	w8, [x22]
* 10:	14000065 	b	0x1a4 <-- trapping instruction