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
netlink: 12 bytes leftover after parsing attributes in process `syz.2.18'.
REISERFS warning: green-16003 errcatch_is_left_mergeable: Invalid item type observed, run fsck ASAP
Unable to handle kernel paging request at virtual address 00000000ffffffff
Mem abort info:
  ESR = 0x0000000096000005
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x05: level 1 translation fault
Data abort info:
  ISV = 0, ISS = 0x00000005
  CM = 0, WnR = 0
user pgtable: 4k pages, 48-bit VAs, pgdp=000000010987b000
[00000000ffffffff] pgd=0800000110f84003, p4d=0800000110f84003, pud=0000000000000000
Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 4451 Comm: syz.2.18 Not tainted 6.1.131-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : scnprintf_cpu_key fs/reiserfs/prints.c:95 [inline]
pc : prepare_error_buf+0x89c/0x1678 fs/reiserfs/prints.c:229
lr : prepare_error_buf+0x4e0/0x1678 fs/reiserfs/prints.c:230
sp : ffff800021767040
x29: ffff8000217671e0 x28: ffff80001ceb29be x27: ffff80001ceb1abe
x26: ffff800021767140 x25: ffff8000217672c0 x24: ffff8000217672d8
x23: ffff80001ceb1aa0 x22: 00000000ffffffff x21: ffffffffffffffe2
x20: 00000000000003e2 x19: dfff800000000000 x18: ffff800021766d40
x17: ffff800018c58000 x16: ffff8000084f4bfc x15: 0000000000000002
x14: 000000000000007a x13: ffff0000d0230000 x12: 0000000000080000
x11: 0000000000005a96 x10: ffff800025f9b000 x9 : 000000000000000a
x8 : 00000000000000ff x7 : 20726f6620686372 x6 : 7261657320666f20
x5 : ffff80001ceb1abe x4 : ffff80001ceb29be x3 : ffff8000122e00a4
x2 : 000000000000000f x1 : 00000000ffffffe0 x0 : 00000000ffffffff
Call trace:
 scnprintf_cpu_key fs/reiserfs/prints.c:95 [inline]
 prepare_error_buf+0x89c/0x1678 fs/reiserfs/prints.c:229
 __reiserfs_error+0xe8/0x2ac fs/reiserfs/prints.c:396
 reiserfs_do_truncate+0x2c0/0x11c8 fs/reiserfs/stree.c:1930
 reiserfs_truncate_file+0x510/0xb1c fs/reiserfs/inode.c:2310
 reiserfs_vfs_truncate_file+0x34/0x4c fs/reiserfs/file.c:133
 reiserfs_direct_IO+0x1ec/0x210 fs/reiserfs/inode.c:3258
 generic_file_direct_write+0x234/0x538 mm/filemap.c:3769
 __generic_file_write_iter+0x1bc/0x388 mm/filemap.c:3929
 generic_file_write_iter+0xb8/0x2b4 mm/filemap.c:4005
 do_iter_readv_writev fs/read_write.c:-1 [inline]
 do_iter_write+0x534/0x964 fs/read_write.c:861
 vfs_writev fs/read_write.c:934 [inline]
 do_pwritev+0x1ec/0x334 fs/read_write.c:1031
 __do_sys_pwritev2 fs/read_write.c:1090 [inline]
 __se_sys_pwritev2 fs/read_write.c:1081 [inline]
 __arm64_sys_pwritev2+0xd4/0x108 fs/read_write.c:1081
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
Code: d343fec8 38f36908 35004d48 aa1603e0 (b8404418) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	d343fec8 	lsr	x8, x22, #3
   4:	38f36908 	ldrsb	w8, [x8, x19]
   8:	35004d48 	cbnz	w8, 0x9b0
   c:	aa1603e0 	mov	x0, x22
* 10:	b8404418 	ldr	w24, [x0], #4 <-- trapping instruction