option from the mount to silence this warning. ======================================================= *** Log Is Dirty ! *** lmLogInit: exit(-22) lmLogOpen: exit(-22) Oops: general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037] CPU: 0 UID: 0 PID: 5897 Comm: syz.3.16 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 RIP: 0010:diRead+0x50a/0xba0 fs/jfs/jfs_imap.c:342 Code: 48 c1 ea 03 80 3c 02 00 0f 85 54 06 00 00 48 8b ad a0 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7d 34 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 72 RSP: 0018:ffffc90004bd78b0 EFLAGS: 00010217 RAX: dffffc0000000000 RBX: ffff88806989d3b0 RCX: 0000000000000000 RDX: 0000000000000006 RSI: ffffffff83aa3064 RDI: 0000000000000034 RBP: 0000000000000000 R08: 0000000000000005 R09: 000000000000001f R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000024 R13: 0000000000000000 R14: ffff88807a563a00 R15: ffff888056e2ac0c FS: 00007fe0d55326c0(0000) GS:ffff8881240e1000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7e76622000 CR3: 0000000053474000 CR4: 0000000000350ef0 Call Trace: jfs_iget+0x98/0x530 fs/jfs/inode.c:35 jfs_lookup+0x285/0x330 fs/jfs/namei.c:1472 __lookup_slow+0x155/0x320 fs/namei.c:1919 lookup_slow+0x50/0x70 fs/namei.c:1936 walk_component fs/namei.c:2282 [inline] lookup_last fs/namei.c:2789 [inline] path_lookupat+0x5e8/0xc40 fs/namei.c:2813 filename_lookup+0x202/0x590 fs/namei.c:2842 filename_listxattr fs/xattr.c:971 [inline] path_listxattrat+0x128/0x370 fs/xattr.c:1001 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe0d459ce59 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:00007fe0d5532028 EFLAGS: 00000246 ORIG_RAX: 00000000000000c3 RAX: ffffffffffffffda RBX: 00007fe0d4815fa0 RCX: 00007fe0d459ce59 RDX: 0000000000000063 RSI: 0000200000000300 RDI: 0000200000000000 RBP: 00007fe0d4632e6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fe0d4816038 R14: 00007fe0d4815fa0 R15: 00007ffc71a9b468 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:diRead+0x50a/0xba0 fs/jfs/jfs_imap.c:342 Code: 48 c1 ea 03 80 3c 02 00 0f 85 54 06 00 00 48 8b ad a0 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7d 34 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 72 RSP: 0018:ffffc90004bd78b0 EFLAGS: 00010217 RAX: dffffc0000000000 RBX: ffff88806989d3b0 RCX: 0000000000000000 RDX: 0000000000000006 RSI: ffffffff83aa3064 RDI: 0000000000000034 RBP: 0000000000000000 R08: 0000000000000005 R09: 000000000000001f R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000024 R13: 0000000000000000 R14: ffff88807a563a00 R15: ffff888056e2ac0c FS: 00007fe0d55326c0(0000) GS:ffff8881241e1000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b34518ff8 CR3: 0000000053474000 CR4: 0000000000350ef0 ---------------- Code disassembly (best guess): 0: 48 c1 ea 03 shr $0x3,%rdx 4: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) 8: 0f 85 54 06 00 00 jne 0x662 e: 48 8b ad a0 00 00 00 mov 0xa0(%rbp),%rbp 15: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 1c: fc ff df 1f: 48 8d 7d 34 lea 0x34(%rbp),%rdi 23: 48 89 fa mov %rdi,%rdx 26: 48 c1 ea 03 shr $0x3,%rdx * 2a: 0f b6 14 02 movzbl (%rdx,%rax,1),%edx <-- trapping instruction 2e: 48 89 f8 mov %rdi,%rax 31: 83 e0 07 and $0x7,%eax 34: 83 c0 03 add $0x3,%eax 37: 38 d0 cmp %dl,%al 39: 7c 08 jl 0x43 3b: 84 d2 test %dl,%dl 3d: 0f .byte 0xf 3e: 85 .byte 0x85 3f: 72 .byte 0x72