loop0: detected capacity change from 0 to 32768 JBD2: Ignoring recovery information on journal ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. Unable to handle kernel paging request at virtual address dfff800000000001 KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] 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 [dfff800000000001] address between user and kernel address ranges Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 5161 Comm: syz.0.15 Not tainted 6.1.137-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : ocfs2_find_dir_space_id fs/ocfs2/dir.c:3425 [inline] pc : ocfs2_prepare_dir_for_insert+0x25f0/0x44ec fs/ocfs2/dir.c:4305 lr : ocfs2_find_dir_space_id fs/ocfs2/dir.c:3388 [inline] lr : ocfs2_prepare_dir_for_insert+0x1e94/0x44ec fs/ocfs2/dir.c:4305 sp : ffff800020846940 x29: ffff800020847040 x28: ffff700004108d4c x27: 0000000000000010 x26: dfff800000000000 x25: ffff0000e5d45df8 x24: ffff8000208475c0 x23: ffff0000e29ae1d0 x22: 00000001000001c0 x21: 000000000000001c x20: 0000000000000009 x19: 0000000000000000 x18: ffff8000119dae20 x17: ffff80001800d000 x16: ffff8000082e6d20 x15: 0000000000000000 x14: 0000000000000002 x13: 0000000000ff0100 x12: 0000000000ff0100 x11: ff00800009c72910 x10: 0000000000000000 x9 : ffff800009c72910 x8 : 0000000000000001 x7 : 0000000000000000 x6 : ffff800020846fa0 x5 : ffff8000208475c0 x4 : 0000000000000000 x3 : 0000000000000020 x2 : 0000000000000000 x1 : 0000000000000400 x0 : 0000000000000008 Call trace: ocfs2_find_dir_space_id fs/ocfs2/dir.c:3425 [inline] ocfs2_prepare_dir_for_insert+0x25f0/0x44ec fs/ocfs2/dir.c:4305 __ocfs2_prepare_orphan_dir+0x14c/0x2d0 fs/ocfs2/namei.c:2164 ocfs2_prepare_orphan_dir+0xf4/0x374 fs/ocfs2/namei.c:2207 ocfs2_rename+0x1cf0/0x2edc fs/ocfs2/namei.c:1459 vfs_rename+0x954/0xdcc fs/namei.c:4874 do_renameat2+0x738/0xa54 fs/namei.c:5027 __do_sys_renameat2 fs/namei.c:5060 [inline] __se_sys_renameat2 fs/namei.c:5057 [inline] __arm64_sys_renameat2+0xe0/0xfc fs/namei.c:5057 __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: f94063f7 d343fc08 f9406ff9 91002674 (38fa6908) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: f94063f7 ldr x23, [sp, #192] 4: d343fc08 lsr x8, x0, #3 8: f9406ff9 ldr x25, [sp, #216] c: 91002674 add x20, x19, #0x9 * 10: 38fa6908 ldrsb w8, [x8, x26] <-- trapping instruction