Oops: general protection fault, probably for non-canonical address 0xf9d9341818e90d39: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: maybe wild-memory-access in range [0xcec9c0c0c74869c8-0xcec9c0c0c74869cf] CPU: 1 UID: 0 PID: 9329 Comm: syz.2.402 Not tainted 6.11.0-rc4-syzkaller-00143-g3d5f968a177d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 RIP: 0010:pid_nr include/linux/pid.h:179 [inline] RIP: 0010:dump_holder fs/gfs2/glock.c:2318 [inline] RIP: 0010:gfs2_dump_glock+0xfba/0x1bb0 fs/gfs2/glock.c:2430 Code: e8 3b 16 1d fe 48 8b 1b 48 85 db 74 2f e8 4e fa b8 fd 4c 8d a3 e0 00 00 00 4c 89 e0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <0f> b6 04 08 84 c0 0f 85 dc 07 00 00 45 8b 24 24 eb 08 e8 1f fa b8 RSP: 0018:ffffc90003f9f260 EFLAGS: 00010a06 RAX: 19d9381818e90d39 RBX: cec9c0c0c74868eb RCX: dffffc0000000000 RDX: ffffc9000ba95000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: ffffc90003f9f550 R08: ffffffff83da8fe5 R09: 1ffffffff269e908 R10: dffffc0000000000 R11: fffffbfff269e909 R12: cec9c0c0c74869cb R13: ffffffff8170410a R14: ffffffff8170412a R15: 1ffffffff02e0825 FS: 00007f5b496e06c0(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5b3e00f000 CR3: 0000000061880000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: gfs2_consist_inode_i+0xf5/0x110 fs/gfs2/util.c:457 gfs2_dirent_scan+0x52b/0x670 gfs2_dirent_search+0x30e/0x8c0 fs/gfs2/dir.c:853 gfs2_dir_search+0xb2/0x2f0 fs/gfs2/dir.c:1653 gfs2_lookupi+0x461/0x5e0 fs/gfs2/inode.c:340 __gfs2_lookup+0xa4/0x280 fs/gfs2/inode.c:896 __lookup_slow+0x28c/0x3f0 fs/namei.c:1718 lookup_slow+0x53/0x70 fs/namei.c:1735 walk_component+0x2e1/0x410 fs/namei.c:2039 lookup_last fs/namei.c:2542 [inline] path_lookupat+0x16f/0x450 fs/namei.c:2566 filename_lookup+0x256/0x610 fs/namei.c:2595 user_path_at+0x3a/0x60 fs/namei.c:3002 do_mount fs/namespace.c:3809 [inline] __do_sys_mount fs/namespace.c:4020 [inline] __se_sys_mount+0x297/0x3c0 fs/namespace.c:3997 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f5b48979e79 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f5b496e0038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f5b48b16058 RCX: 00007f5b48979e79 RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000000 RBP: 00007f5b489e793e R08: 0000000020000980 R09: 0000000000000000 R10: 0000000001210020 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f5b48b16058 R15: 00007fff2914d9b8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:pid_nr include/linux/pid.h:179 [inline] RIP: 0010:dump_holder fs/gfs2/glock.c:2318 [inline] RIP: 0010:gfs2_dump_glock+0xfba/0x1bb0 fs/gfs2/glock.c:2430 Code: e8 3b 16 1d fe 48 8b 1b 48 85 db 74 2f e8 4e fa b8 fd 4c 8d a3 e0 00 00 00 4c 89 e0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <0f> b6 04 08 84 c0 0f 85 dc 07 00 00 45 8b 24 24 eb 08 e8 1f fa b8 RSP: 0018:ffffc90003f9f260 EFLAGS: 00010a06 RAX: 19d9381818e90d39 RBX: cec9c0c0c74868eb RCX: dffffc0000000000 RDX: ffffc9000ba95000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: ffffc90003f9f550 R08: ffffffff83da8fe5 R09: 1ffffffff269e908 R10: dffffc0000000000 R11: fffffbfff269e909 R12: cec9c0c0c74869cb R13: ffffffff8170410a R14: ffffffff8170412a R15: 1ffffffff02e0825 FS: 00007f5b496e06c0(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9ca0447d60 CR3: 0000000061880000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: e8 3b 16 1d fe call 0xfe1d1640 5: 48 8b 1b mov (%rbx),%rbx 8: 48 85 db test %rbx,%rbx b: 74 2f je 0x3c d: e8 4e fa b8 fd call 0xfdb8fa60 12: 4c 8d a3 e0 00 00 00 lea 0xe0(%rbx),%r12 19: 4c 89 e0 mov %r12,%rax 1c: 48 c1 e8 03 shr $0x3,%rax 20: 48 b9 00 00 00 00 00 movabs $0xdffffc0000000000,%rcx 27: fc ff df * 2a: 0f b6 04 08 movzbl (%rax,%rcx,1),%eax <-- trapping instruction 2e: 84 c0 test %al,%al 30: 0f 85 dc 07 00 00 jne 0x812 36: 45 8b 24 24 mov (%r12),%r12d 3a: eb 08 jmp 0x44 3c: e8 .byte 0xe8 3d: 1f (bad) 3e: fa cli 3f: b8 .byte 0xb8