WARNING: The mand mount option has been deprecated and and is ignored by this kernel. Remove the mand option from the mount to silence this warning. ======================================================= ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 0 PID: 5060 Comm: syz.0.17 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 RIP: 0010:ocfs2_dx_dir_lookup_rec+0x301/0x7a0 fs/ocfs2/dir.c:815 Code: 18 48 83 c3 40 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 ce 2c a2 fe 48 8b 03 48 89 44 24 40 4c 89 f0 48 c1 e8 03 <42> 0f b6 04 20 84 c0 0f 85 77 03 00 00 4d 89 ef 41 8b 1e 48 8b 7c RSP: 0018:ffffc90002faf1c0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff88806e4088b8 RCX: ffff88807df8d940 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88806e4088a0 RBP: ffffc90002faf2d0 R08: ffffc90002faf330 R09: ffffc90002faf33c R10: 0000000000000002 R11: 0000000000000000 R12: dffffc0000000000 R13: 1ffff920005f5e44 R14: 0000000000000000 R15: ffff88806f2870c0 FS: 00007fdd5b4736c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa90473e000 CR3: 00000000764ed000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ocfs2_dx_dir_lookup+0xd0/0x530 fs/ocfs2/dir.c:860 ocfs2_dx_dir_search fs/ocfs2/dir.c:920 [inline] ocfs2_find_entry_dx fs/ocfs2/dir.c:1034 [inline] ocfs2_find_entry+0xf02/0x1f90 fs/ocfs2/dir.c:1071 ocfs2_find_files_on_disk+0xdb/0x2f0 fs/ocfs2/dir.c:1995 ocfs2_lookup_ino_from_name+0x4f/0xf0 fs/ocfs2/dir.c:2017 ocfs2_lookup+0x254/0x960 fs/ocfs2/namei.c:122 lookup_open fs/namei.c:3448 [inline] open_last_lookups fs/namei.c:3540 [inline] path_openat+0x1046/0x2fb0 fs/namei.c:3747 do_filp_open+0x1df/0x400 fs/namei.c:3777 do_sys_openat2+0x14b/0x500 fs/open.c:1255 do_sys_open fs/open.c:1271 [inline] __do_sys_openat fs/open.c:1287 [inline] __se_sys_openat fs/open.c:1282 [inline] __x64_sys_openat+0x135/0x160 fs/open.c:1282 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7fdd5be0fef9 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fdd5b473028 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fdd5c07afa0 RCX: 00007fdd5be0fef9 RDX: 000000000000275a RSI: 0000200000000080 RDI: ffffffffffffff9c RBP: 00007fdd5bea4ee0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fdd5c07b038 R14: 00007fdd5c07afa0 R15: 00007fff8326ed98 Modules linked in: ---[ end trace ad952961aba7ad72 ]--- RIP: 0010:ocfs2_dx_dir_lookup_rec+0x301/0x7a0 fs/ocfs2/dir.c:815 Code: 18 48 83 c3 40 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 ce 2c a2 fe 48 8b 03 48 89 44 24 40 4c 89 f0 48 c1 e8 03 <42> 0f b6 04 20 84 c0 0f 85 77 03 00 00 4d 89 ef 41 8b 1e 48 8b 7c RSP: 0018:ffffc90002faf1c0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff88806e4088b8 RCX: ffff88807df8d940 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88806e4088a0 RBP: ffffc90002faf2d0 R08: ffffc90002faf330 R09: ffffc90002faf33c R10: 0000000000000002 R11: 0000000000000000 R12: dffffc0000000000 R13: 1ffff920005f5e44 R14: 0000000000000000 R15: ffff88806f2870c0 FS: 00007fdd5b4736c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fdd5be5d640 CR3: 00000000764ed000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 18 48 83 sbb %cl,-0x7d(%rax) 3: c3 ret 4: 40 rex 5: 48 89 d8 mov %rbx,%rax 8: 48 c1 e8 03 shr $0x3,%rax c: 42 80 3c 20 00 cmpb $0x0,(%rax,%r12,1) 11: 74 08 je 0x1b 13: 48 89 df mov %rbx,%rdi 16: e8 ce 2c a2 fe call 0xfea22ce9 1b: 48 8b 03 mov (%rbx),%rax 1e: 48 89 44 24 40 mov %rax,0x40(%rsp) 23: 4c 89 f0 mov %r14,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 0f b6 04 20 movzbl (%rax,%r12,1),%eax <-- trapping instruction 2f: 84 c0 test %al,%al 31: 0f 85 77 03 00 00 jne 0x3ae 37: 4d 89 ef mov %r13,%r15 3a: 41 8b 1e mov (%r14),%ebx 3d: 48 rex.W 3e: 8b .byte 0x8b 3f: 7c .byte 0x7c