=================================================================== Unable to handle kernel paging request at virtual address dfff800000000048 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 [dfff800000000048] address between user and kernel address ranges Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 4859 Comm: syz.0.15 Not tainted 5.15.184-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_block_head fs/reiserfs/prints.c:152 [inline] pc : prepare_error_buf+0xf04/0x1790 fs/reiserfs/prints.c:245 lr : prepare_error_buf+0x6d0/0x1790 fs/reiserfs/prints.c:246 sp : ffff80001fae6d00 x29: ffff80001fae6e80 x28: ffff80001aecd919 x27: dfff800000000000 x26: ffff80001fae6f20 x25: ffff80001fae6d80 x24: ffff80001aecca19 x23: 000000000000007a x22: ffff80001fae6f38 x21: 0000000000000241 x20: ffff80001aecca00 x19: ffff80001446e220 x18: 0000000000000001 x17: 0000000000000000 x16: ffff800008bfb6ac x15: 000000000000007a x14: 0000000000ff0100 x13: ffffffffffffffff x12: 0000000000ff0100 x11: 0000000000000001 x10: 0000000000000000 x9 : ffff800008bfbb34 x8 : 0000000000000048 x7 : 20736e6961746e6f x6 : 6961746e6f632029 x5 : ffff80001aecca19 x4 : ffff80001aecd919 x3 : ffff80000a927584 x2 : 000000000000000b x1 : 00000000ffffffc8 x0 : ffff80001fae6f28 Call trace: scnprintf_block_head fs/reiserfs/prints.c:152 [inline] prepare_error_buf+0xf04/0x1790 fs/reiserfs/prints.c:245 reiserfs_printk+0xc4/0x114 fs/reiserfs/prints.c:312 print_leaf fs/reiserfs/prints.c:496 [inline] print_block+0x308/0x148c fs/reiserfs/prints.c:626 reiserfs_cut_from_item+0x152c/0x1a44 fs/reiserfs/stree.c:1726 reiserfs_do_truncate+0x738/0x1020 fs/reiserfs/stree.c:1973 reiserfs_truncate_file+0x328/0x6e4 fs/reiserfs/inode.c:2318 reiserfs_file_release+0x710/0x894 fs/reiserfs/file.c:109 __fput+0x1c0/0x7f8 fs/file_table.c:311 ____fput+0x20/0x30 fs/file_table.c:339 task_work_run+0x12c/0x1e0 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x24b4/0x3128 arch/arm64/kernel/signal.c:949 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+0xf0/0x1e0 arch/arm64/kernel/entry-common.c:609 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: 97f13fb2 f94002a8 9100a115 d343fea8 (387b6908) ---[ end trace c20eb11e5d366e98 ]--- ---------------- Code disassembly (best guess): 0: 97f13fb2 bl 0xffffffffffc4fec8 4: f94002a8 ldr x8, [x21] 8: 9100a115 add x21, x8, #0x28 c: d343fea8 lsr x8, x21, #3 * 10: 387b6908 ldrb w8, [x8, x27] <-- trapping instruction