general protection fault, probably for non-canonical address 0xdffffc0000018018: 0000 [#1] PREEMPT SMP KASAN KASAN: probably user-memory-access in range [0x00000000000c00c0-0x00000000000c00c7] CPU: 0 PID: 15978 Comm: syz-executor.5 Not tainted 6.3.0-syzkaller-12049-g58390c8ce1bd #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 RIP: 0010:pid_is_meaningful fs/gfs2/glock.c:1457 [inline] RIP: 0010:dump_holder fs/gfs2/glock.c:2266 [inline] RIP: 0010:gfs2_dump_glock+0xdcd/0x1ad0 fs/gfs2/glock.c:2382 Code: 05 08 c9 8c 0a 01 48 c7 c7 80 a4 2c 8b be 07 03 00 00 48 c7 c2 c0 a4 2c 8b e8 8f 14 b7 fd 4d 8d 74 24 20 4d 89 f5 49 c1 ed 03 <43> 0f b6 44 3d 00 84 c0 0f 85 f1 06 00 00 41 0f b7 1e 89 de 81 e6 RSP: 0018:ffffc9000a12f6c0 EFLAGS: 00010207 RAX: ffffffff83b48d99 RBX: 0000000000000001 RCX: 0000000000040000 RDX: ffffc90011f8f000 RSI: 0000000000024c34 RDI: 0000000000024c35 RBP: ffffc9000a12f9b0 R08: ffffffff83b48d87 R09: fffffbfff206504d R10: 0000000000000000 R11: dffffc0000000001 R12: 00000000000c00a6 R13: 0000000000018018 R14: 00000000000c00c6 R15: dffffc0000000000 FS: 00007f18d9837700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f255b43c000 CR3: 000000002646f000 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:465 gfs2_dirent_scan+0x512/0x640 fs/gfs2/dir.c:602 gfs2_dir_read+0x82f/0x1af0 fs/gfs2/dir.c:1599 gfs2_readdir+0x14e/0x1b0 fs/gfs2/file.c:116 iterate_dir+0x228/0x570 __do_sys_getdents64 fs/readdir.c:369 [inline] __se_sys_getdents64+0x20d/0x4f0 fs/readdir.c:354 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f18d8a8c169 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f18d9837168 EFLAGS: 00000246 ORIG_RAX: 00000000000000d9 RAX: ffffffffffffffda RBX: 00007f18d8babf80 RCX: 00007f18d8a8c169 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00007f18d8ae7ca1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcf5d6e99f R14: 00007f18d9837300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:pid_is_meaningful fs/gfs2/glock.c:1457 [inline] RIP: 0010:dump_holder fs/gfs2/glock.c:2266 [inline] RIP: 0010:gfs2_dump_glock+0xdcd/0x1ad0 fs/gfs2/glock.c:2382 Code: 05 08 c9 8c 0a 01 48 c7 c7 80 a4 2c 8b be 07 03 00 00 48 c7 c2 c0 a4 2c 8b e8 8f 14 b7 fd 4d 8d 74 24 20 4d 89 f5 49 c1 ed 03 <43> 0f b6 44 3d 00 84 c0 0f 85 f1 06 00 00 41 0f b7 1e 89 de 81 e6 RSP: 0018:ffffc9000a12f6c0 EFLAGS: 00010207 RAX: ffffffff83b48d99 RBX: 0000000000000001 RCX: 0000000000040000 RDX: ffffc90011f8f000 RSI: 0000000000024c34 RDI: 0000000000024c35 RBP: ffffc9000a12f9b0 R08: ffffffff83b48d87 R09: fffffbfff206504d R10: 0000000000000000 R11: dffffc0000000001 R12: 00000000000c00a6 R13: 0000000000018018 R14: 00000000000c00c6 R15: dffffc0000000000 FS: 00007f18d9837700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f255b43c000 CR3: 000000002646f000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 05 08 c9 8c 0a add $0xa8cc908,%eax 5: 01 48 c7 add %ecx,-0x39(%rax) 8: c7 80 a4 2c 8b be 07 movl $0x307,-0x4174d35c(%rax) f: 03 00 00 12: 48 c7 c2 c0 a4 2c 8b mov $0xffffffff8b2ca4c0,%rdx 19: e8 8f 14 b7 fd callq 0xfdb714ad 1e: 4d 8d 74 24 20 lea 0x20(%r12),%r14 23: 4d 89 f5 mov %r14,%r13 26: 49 c1 ed 03 shr $0x3,%r13 * 2a: 43 0f b6 44 3d 00 movzbl 0x0(%r13,%r15,1),%eax <-- trapping instruction 30: 84 c0 test %al,%al 32: 0f 85 f1 06 00 00 jne 0x729 38: 41 0f b7 1e movzwl (%r14),%ebx 3c: 89 de mov %ebx,%esi 3e: 81 .byte 0x81 3f: e6 .byte 0xe6