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=000000010f1e8000 [00000000ffffffff] pgd=0800000112ac9003, p4d=0800000112ac9003, pud=0000000000000000 Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 4345 Comm: syz.2.48 Not tainted 5.15.185-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : scnprintf_cpu_key fs/reiserfs/prints.c:95 [inline] pc : prepare_error_buf+0x748/0x1790 fs/reiserfs/prints.c:229 lr : prepare_error_buf+0x470/0x1790 fs/reiserfs/prints.c:230 sp : ffff80001f546ea0 x29: ffff80001f547020 x28: ffff80001aede91e x27: dfff800000000000 x26: ffff80001f5470a0 x25: 00000000ffffffff x24: ffff80001aedda1e x23: 000000000000004b x22: ffff80001f5470b8 x21: ffff80001f547080 x20: ffffffffffffffe2 x19: ffff80001447e260 x18: 0000000000000001 x17: 0000000000000002 x16: ffff800008bfba74 x15: 000000000000007a x14: 0000000000ff0100 x13: ffffffffffffffff x12: 0000000000080000 x11: 0000000000007fed x10: ffff800025359000 x9 : ffff800008bfbc9c x8 : 0000000000000000 x7 : 20726f6620686372 x6 : 7261657320666f20 x5 : ffff80001aedda1e x4 : ffff80001aede91e x3 : ffff80000a929504 x2 : 000000000000000f x1 : 00000000ffffffe0 x0 : 00000000ffffffff Call trace: scnprintf_cpu_key fs/reiserfs/prints.c:95 [inline] prepare_error_buf+0x748/0x1790 fs/reiserfs/prints.c:229 __reiserfs_error+0xd0/0x28c fs/reiserfs/prints.c:396 reiserfs_do_truncate+0x3a8/0x1020 fs/reiserfs/stree.c:1930 reiserfs_truncate_file+0x328/0x6e4 fs/reiserfs/inode.c:2318 reiserfs_setattr+0x8c8/0xd70 fs/reiserfs/inode.c:3409 notify_change+0xa08/0xcd8 fs/attr.c:505 do_truncate+0x178/0x1f0 fs/open.c:65 handle_truncate fs/namei.c:3265 [inline] do_open fs/namei.c:3612 [inline] path_openat+0x211c/0x26e4 fs/namei.c:3742 do_filp_open+0x164/0x330 fs/namei.c:3769 do_sys_openat2+0x128/0x3d8 fs/open.c:1253 do_sys_open fs/open.c:1269 [inline] __do_sys_openat fs/open.c:1285 [inline] __se_sys_openat fs/open.c:1280 [inline] __arm64_sys_openat+0x120/0x154 fs/open.c:1280 __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: d343ff28 38fb6908 35005988 aa1903e0 (b8404408) ---[ end trace 76868ec70a3d9b10 ]--- ---------------- Code disassembly (best guess): 0: d343ff28 lsr x8, x25, #3 4: 38fb6908 ldrsb w8, [x8, x27] 8: 35005988 cbnz w8, 0xb38 c: aa1903e0 mov x0, x25 * 10: b8404408 ldr w8, [x0], #4 <-- trapping instruction