REISERFS warning (device loop6): vs-13060 reiserfs_update_sd_size: stat data of object [2 5 0x0 SD] (nlink == 2) not found (pos 1) Unable to handle kernel paging request at virtual address dfff80001fffffff Mem abort info: ESR = 0x0000000096000007 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x07: level 3 translation fault Data abort info: ISV = 0, ISS = 0x00000007 CM = 0, WnR = 0 [dfff80001fffffff] address between user and kernel address ranges Internal error: Oops: 0000000096000007 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 5445 Comm: syz.6.240 Not tainted 5.15.171-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : scnprintf_cpu_key fs/reiserfs/prints.c:95 [inline] pc : prepare_error_buf+0x6d0/0x1580 fs/reiserfs/prints.c:229 lr : prepare_error_buf+0x430/0x1580 fs/reiserfs/prints.c:230 sp : ffff800020c46d40 x29: ffff800020c46ec0 x28: ffff80001b85d91e x27: ffff80001b85ca1e x26: ffff800020c46fb8 x25: ffff800020c46fa0 x24: ffff800020c46e20 x23: ffff80001b85ca00 x22: 00000000ffffffff x21: ffffffffffffffe2 x20: 00000000000003e2 x19: dfff800000000000 x18: 0000000000000001 x17: 0000000000000002 x16: ffff800008ccc5a4 x15: 000000000000007a x14: ffff0000c82151c0 x13: 0000000000ff0100 x12: 0000000000040000 x11: 000000000000d207 x10: ffff800025769000 x9 : 000000000000d208 x8 : 000000001fffffff x7 : 20726f6620686372 x6 : 7261657320666f20 x5 : ffff80001b85ca1e x4 : ffff80001b85d91e x3 : ffff80000ab88c14 x2 : 000000000000000f x1 : 00000000ffffffe0 x0 : 00000000fffffff9 Call trace: scnprintf_cpu_key fs/reiserfs/prints.c:95 [inline] prepare_error_buf+0x6d0/0x1580 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+0x3ac/0x6f0 fs/reiserfs/inode.c:2318 reiserfs_setattr+0x8e8/0xd94 fs/reiserfs/inode.c:3409 notify_change+0xa34/0xcf8 fs/attr.c:505 do_truncate+0x1c0/0x28c fs/open.c:65 handle_truncate fs/namei.c:3265 [inline] do_open fs/namei.c:3612 [inline] path_openat+0x20c4/0x26cc fs/namei.c:3742 do_filp_open+0x1a8/0x3b4 fs/namei.c:3769 do_sys_openat2+0x128/0x3e0 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+0x1f0/0x240 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+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Code: f9400296 911002b4 b4000496 d343fec8 (38f36908) ---[ end trace 3bed81128dc7eaa5 ]--- ---------------- Code disassembly (best guess): 0: f9400296 ldr x22, [x20] 4: 911002b4 add x20, x21, #0x400 8: b4000496 cbz x22, 0x98 c: d343fec8 lsr x8, x22, #3 * 10: 38f36908 ldrsb w8, [x8, x19] <-- trapping instruction