general protection fault, probably for non-canonical address 0xdffffc000000041a: 0000 [#1] PREEMPT SMP KASAN KASAN: probably user-memory-access in range [0x00000000000020d0-0x00000000000020d7] CPU: 0 PID: 16710 Comm: syz-executor.1 Not tainted 6.7.0-rc7-syzkaller-00003-gfbafc3e621c3 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 RIP: 0010:pid_nr include/linux/pid.h:186 [inline] RIP: 0010:dump_holder fs/gfs2/glock.c:2258 [inline] RIP: 0010:gfs2_dump_glock+0xfba/0x1ba0 fs/gfs2/glock.c:2370 Code: e8 db eb 28 fe 48 8b 1b 48 85 db 74 2f e8 be e6 cc fd 4c 8d a3 d0 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 8f e6 cc RSP: 0018:ffffc90014737120 EFLAGS: 00010202 RAX: 000000000000041a RBX: 0000000000002001 RCX: dffffc0000000000 RDX: ffffc90009769000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: ffffc90014737410 R08: ffffffff83c19325 R09: 1ffffffff21bae6c R10: dffffc0000000000 R11: fffffbfff21bae6d R12: 00000000000020d1 R13: ffff88801c073b80 R14: ffff88801c073ba0 R15: 1ffff1100380e774 FS: 00007fdd9bfdd6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fdd94362000 CR3: 0000000027bd2000 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:456 gfs2_dirent_scan+0x512/0x640 fs/gfs2/dir.c:602 gfs2_dirent_search+0x30e/0x8c0 fs/gfs2/dir.c:850 gfs2_dir_search+0xb2/0x2f0 fs/gfs2/dir.c:1650 gfs2_lookupi+0x460/0x5d0 fs/gfs2/inode.c:340 __gfs2_lookup+0xa4/0x270 fs/gfs2/inode.c:896 __lookup_slow+0x282/0x3e0 fs/namei.c:1694 lookup_slow+0x53/0x70 fs/namei.c:1711 walk_component fs/namei.c:2002 [inline] link_path_walk+0x9c8/0xe70 fs/namei.c:2329 path_lookupat+0xa9/0x450 fs/namei.c:2482 filename_lookup+0x255/0x610 fs/namei.c:2512 do_linkat+0x182/0x750 fs/namei.c:4639 __do_sys_link fs/namei.c:4693 [inline] __se_sys_link fs/namei.c:4691 [inline] __x64_sys_link+0x86/0x90 fs/namei.c:4691 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x45/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7fdd9d47cce9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fdd9bfdd0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000056 RAX: ffffffffffffffda RBX: 00007fdd9d59c050 RCX: 00007fdd9d47cce9 RDX: 0000000000000000 RSI: 0000000020000240 RDI: 00000000200001c0 RBP: 00007fdd9d4c947a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007fdd9d59c050 R15: 00007ffc4eed3708 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:pid_nr include/linux/pid.h:186 [inline] RIP: 0010:dump_holder fs/gfs2/glock.c:2258 [inline] RIP: 0010:gfs2_dump_glock+0xfba/0x1ba0 fs/gfs2/glock.c:2370 Code: e8 db eb 28 fe 48 8b 1b 48 85 db 74 2f e8 be e6 cc fd 4c 8d a3 d0 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 8f e6 cc RSP: 0018:ffffc90014737120 EFLAGS: 00010202 RAX: 000000000000041a RBX: 0000000000002001 RCX: dffffc0000000000 RDX: ffffc90009769000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: ffffc90014737410 R08: ffffffff83c19325 R09: 1ffffffff21bae6c R10: dffffc0000000000 R11: fffffbfff21bae6d R12: 00000000000020d1 R13: ffff88801c073b80 R14: ffff88801c073ba0 R15: 1ffff1100380e774 FS: 00007fdd9bfdd6c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555569a29f8 CR3: 0000000027bd2000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: e8 db eb 28 fe call 0xfe28ebe0 5: 48 8b 1b mov (%rbx),%rbx 8: 48 85 db test %rbx,%rbx b: 74 2f je 0x3c d: e8 be e6 cc fd call 0xfdcce6d0 12: 4c 8d a3 d0 00 00 00 lea 0xd0(%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: 8f (bad) 3e: e6 cc out %al,$0xcc