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=0000000132d51000 [00000000ffffffff] pgd=0800000137b8d003, p4d=0800000137b8d003, pud=0000000000000000 Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 4596 Comm: syz.2.35 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : scnprintf_cpu_key fs/reiserfs/prints.c:95 [inline] pc : prepare_error_buf+0x790/0x1850 fs/reiserfs/prints.c:229 lr : prepare_error_buf+0x4a4/0x1850 fs/reiserfs/prints.c:230 sp : ffff8000213c6e80 x29: ffff8000213c7000 x28: ffffffffffffffe2 x27: ffff80001c3dea7e x26: ffff8000213c6f00 x25: 00000000ffffffff x24: ffff80001c3ddb7e x23: 000000000000004b x22: ffff8000213c7080 x21: ffff8000213c7060 x20: ffff80001539cf40 x19: dfff800000000000 x18: ffff800011a5bd40 x17: ffff800018184000 x16: ffff8000082e8d70 x15: 0000000000000000 x14: 000000000000007a x13: 0000000000ff0100 x12: 0000000000ff0100 x11: ff00800008ca6688 x10: 0000000000000000 x9 : ffff800008ca6688 x8 : 0000000000000000 x7 : 20726f6620686372 x6 : 7261657320666f20 x5 : ffff80001c3ddb7e x4 : ffff80001c3dea7e x3 : ffff8000117f57b4 x2 : 000000000000000f x1 : 00000000ffffffe0 x0 : 00000000ffffffff Call trace: scnprintf_cpu_key fs/reiserfs/prints.c:95 [inline] prepare_error_buf+0x790/0x1850 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+0x5c0/0xaf4 fs/reiserfs/inode.c:2310 reiserfs_setattr+0xac4/0xf7c fs/reiserfs/inode.c:3395 notify_change+0xb0c/0xdcc fs/attr.c:499 do_truncate+0x178/0x1f0 fs/open.c:65 handle_truncate fs/namei.c:3293 [inline] do_open fs/namei.c:3638 [inline] path_openat+0x20d0/0x2680 fs/namei.c:3791 do_filp_open+0x174/0x344 fs/namei.c:3818 do_sys_openat2+0x128/0x3d8 fs/open.c:1320 do_sys_open fs/open.c:1336 [inline] __do_sys_openat fs/open.c:1352 [inline] __se_sys_openat fs/open.c:1347 [inline] __arm64_sys_openat+0x120/0x154 fs/open.c:1347 __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+0x58/0x138 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: d343ff28 38f36908 35005d08 aa1903e0 (b8404408) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: d343ff28 lsr x8, x25, #3 4: 38f36908 ldrsb w8, [x8, x19] 8: 35005d08 cbnz w8, 0xba8 c: aa1903e0 mov x0, x25 * 10: b8404408 ldr w8, [x0], #4 <-- trapping instruction