REISERFS (device loop0): checking transaction log (loop0)
REISERFS (device loop0): Using tea hash to sort names
REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage.
Internal error: Oops - BTI: 0000000036000001 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 4946 Comm: syz.0.16 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026
pstate: 42400405 (nZcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=jc)
pc : reiserfs_ioctl+0x320/0x4b4 fs/reiserfs/ioctl.c:106
lr : reiserfs_ioctl+0x2f8/0x4b4 fs/reiserfs/ioctl.c:106
sp : ffff80001f427cd0
x29: ffff80001f427cd0 x28: ffff0000c7839b40 x27: 0000000000400140
x26: 1fffe0001db11037 x25: dfff800000000000 x24: 0000000000000000
x23: 00000000fffffff2 x22: ffff0000cad1ec80 x21: 0000000000000000
x20: ffff0000ed888190 x19: ffff0000ed8881b8 x18: 0000000000000000
x17: ffff800016e33000 x16: ffff800008c3a490 x15: ffff800016913500
x14: 0000000000000001 x13: 1ffff00002dc7a84 x12: 0000000000000000
x11: 1fffe0001db110bf x10: 0000ffffffffffff x9 : 0000000000000000
x8 : ffff0000ed8885f8 x7 : 0000000000000000 x6 : 0000000000000000
x5 : ffff800016fe8ff8 x4 : 0000000000000002 x3 : ffff8000082c1b88
x2 : 0000000000000001 x1 : 0000000000000001 x0 : 0000000000000000
Call trace:
 reiserfs_ioctl+0x320/0x4b4 fs/reiserfs/ioctl.c:106
 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+0x98/0x2b0 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x13c 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: ea2a013f 9a9f02ac d503229f b8400998 (38f96969) 
---[ end trace 40cd4ff032d26bf6 ]---
----------------
Code disassembly (best guess):
   0:	ea2a013f 	bics	xzr, x9, x10
   4:	9a9f02ac 	csel	x12, x21, xzr, eq	// eq = none
   8:	d503229f 	csdb
   c:	b8400998 	ldtr	w24, [x12]
* 10:	38f96969 	ldrsb	w9, [x11, x25] <-- trapping instruction