REISERFS warning: green-16003 errcatch_is_left_mergeable: Invalid item type observed, run fsck ASAP
REISERFS warning: green-16003 errcatch_is_left_mergeable: Invalid item type observed, run fsck ASAP
REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage.
Internal error: Oops - BTI: 0000000036000001 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 4976 Comm: syz.1.17 Not tainted 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 : reiserfs_ioctl+0x320/0x4b4 fs/reiserfs/ioctl.c:106
lr : reiserfs_ioctl+0x2f8/0x4b4 fs/reiserfs/ioctl.c:106
sp : ffff800020007cd0
x29: ffff800020007cd0 x28: ffff0000ccdd8000 x27: 0000000000400140
x26: 1fffe0001e235037 x25: dfff800000000000 x24: 0000000000000000
x23: 00000000fffffff2 x22: ffff0000dadf0280 x21: 0000000000000000
x20: ffff0000f11a8190 x19: ffff0000f11a81b8 x18: 0000000000000000
x17: ffff800016d16000 x16: ffff800008c2e55c x15: ffff8000167f6500
x14: ffff0000ccdd8a00 x13: dfff800000000000 x12: 0000000000000000
x11: 1fffe0001e2350bf x10: 0000ffffffffffff x9 : 0000000000000000
x8 : ffff0000f11a85f8 x7 : 0000000000000000 x6 : 0000000000000000
x5 : ffff800016ede640 x4 : 0000000000000002 x3 : ffff8000082bfbc0
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+0x98/0x2b8 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: ea2a013f 9a9f02ac d503229f b8400998 (38f96969) 
---[ end trace 048ea3149a57937d ]---
----------------
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