=================================================================== Unable to handle kernel paging request at virtual address dfff80000000004a Mem abort info: ESR = 0x0000000096000006 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x06: level 2 translation fault Data abort info: ISV = 0, ISS = 0x00000006 CM = 0, WnR = 0 [dfff80000000004a] address between user and kernel address ranges Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 6826 Comm: syz.4.867 Not tainted 5.15.167-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : scnprintf_block_head fs/reiserfs/prints.c:152 [inline] pc : prepare_error_buf+0xe84/0x1580 fs/reiserfs/prints.c:245 lr : prepare_error_buf+0x660/0x1580 fs/reiserfs/prints.c:246 sp : ffff800020796b80 x29: ffff800020796d00 x28: ffff80001b84c919 x27: ffff80001b84ba19 x26: ffff800020796e18 x25: ffff800020796e00 x24: ffff800020796c60 x23: ffff80001b84ba00 x22: 0000000000000400 x21: ffff800020796e08 x20: 0000000000000252 x19: dfff800000000000 x18: 0000000000000001 x17: 0000000000000000 x16: ffff800008ccbb9c x15: 000000000000007a x14: ffff0000eb1251c0 x13: 0000000000ff0100 x12: ffffffffffffffff x11: 0000000000000001 x10: 0000000000000000 x9 : ffff0000eb1251c0 x8 : 000000000000004a x7 : 20736e6961746e6f x6 : 6961746e6f632029 x5 : ffff80001b84ba19 x4 : ffff80001b84c919 x3 : ffff80000ab8b98c x2 : 000000000000000b x1 : 00000000ffffffc8 x0 : 00000000fffffff9 Call trace: scnprintf_block_head fs/reiserfs/prints.c:152 [inline] prepare_error_buf+0xe84/0x1580 fs/reiserfs/prints.c:245 reiserfs_printk+0xdc/0x134 fs/reiserfs/prints.c:312 print_leaf fs/reiserfs/prints.c:496 [inline] print_block+0x34c/0x1508 fs/reiserfs/prints.c:626 reiserfs_cut_from_item+0x18f0/0x1c84 fs/reiserfs/stree.c:1726 reiserfs_do_truncate+0x89c/0x11c8 fs/reiserfs/stree.c:1973 reiserfs_truncate_file+0x3ac/0x6f0 fs/reiserfs/inode.c:2318 reiserfs_file_release+0x710/0x884 fs/reiserfs/file.c:109 __fput+0x1c4/0x800 fs/file_table.c:280 ____fput+0x20/0x30 fs/file_table.c:308 task_work_run+0x130/0x1e4 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x262c/0x32b8 arch/arm64/kernel/signal.c:946 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xfc/0x1f0 arch/arm64/kernel/entry-common.c:609 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: 97f026c4 f9400288 9100a114 d343fe88 (38736908) ---[ end trace 36382a3b4a758903 ]--- ---------------- Code disassembly (best guess): 0: 97f026c4 bl 0xffffffffffc09b10 4: f9400288 ldr x8, [x20] 8: 9100a114 add x20, x8, #0x28 c: d343fe88 lsr x8, x20, #3 * 10: 38736908 ldrb w8, [x8, x19] <-- trapping instruction