gfs2: fsid=syz:syz.0: H: s:SH f:H e:0 p:11285 [syz-executor.2] __gfs2_lookup+0x8c/0x260 fs/gfs2/inode.c:870 general protection fault, probably for non-canonical address 0xec71905d3cfffec4: 0000 [#1] PREEMPT SMP KASAN KASAN: maybe wild-memory-access in range [0x638ca2e9e7fff620-0x638ca2e9e7fff627] CPU: 1 PID: 11330 Comm: syz-executor.2 Not tainted 6.1.0-rc7-syzkaller-00103-gef4d3ea40565 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 RIP: 0010:pid_is_meaningful fs/gfs2/glock.c:1464 [inline] RIP: 0010:dump_holder fs/gfs2/glock.c:2333 [inline] RIP: 0010:gfs2_dump_glock+0xd7b/0x1b60 fs/gfs2/glock.c:2447 Code: 05 dc d2 ac 0a 01 48 c7 c7 00 2d 3c 8b be e4 02 00 00 48 c7 c2 40 2d 3c 8b e8 51 98 b5 fd 90 4d 8d 65 20 4d 89 e6 49 c1 ee 03 <43> 0f b6 04 3e 84 c0 0f 85 c6 07 00 00 41 0f b7 1c 24 89 de 81 e6 RSP: 0018:ffffc9000318f120 EFLAGS: 00010202 RAX: ffffffff83b50e1f RBX: ffffc900167ef750 RCX: 0000000000040000 RDX: ffffc9000c851000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: ffffc9000318f408 R08: dffffc0000000000 R09: fffffbfff20b2e29 R10: fffffbfff20b2e29 R11: 1ffffffff20b2e28 R12: 638ca2e9e7fff620 R13: 638ca2e9e7fff600 R14: 0c71945d3cfffec4 R15: dffffc0000000000 FS: 00007fd83091a700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30921000 CR3: 000000001f3b6000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: gfs2_consist_inode_i+0xf3/0x110 fs/gfs2/util.c:465 gfs2_dirent_scan+0x535/0x650 fs/gfs2/dir.c:602 gfs2_dirent_search+0x2ea/0xb10 fs/gfs2/dir.c:850 gfs2_dir_search+0x8c/0x2a0 fs/gfs2/dir.c:1650 gfs2_lookupi+0x465/0x650 fs/gfs2/inode.c:323 __gfs2_lookup+0x8c/0x260 fs/gfs2/inode.c:870 gfs2_atomic_open+0xa4/0x230 fs/gfs2/inode.c:1274 atomic_open fs/namei.c:3276 [inline] lookup_open fs/namei.c:3384 [inline] open_last_lookups fs/namei.c:3481 [inline] path_openat+0xf39/0x2df0 fs/namei.c:3711 do_filp_open+0x264/0x4f0 fs/namei.c:3741 do_sys_openat2+0x124/0x4e0 fs/open.c:1310 do_sys_open fs/open.c:1326 [inline] __do_sys_openat fs/open.c:1342 [inline] __se_sys_openat fs/open.c:1337 [inline] __x64_sys_openat+0x243/0x290 fs/open.c:1337 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fd82fc8c0d9 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:00007fd83091a168 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fd82fdac050 RCX: 00007fd82fc8c0d9 RDX: 0000000000000000 RSI: 0000000020004400 RDI: ffffffffffffff9c RBP: 00007fd82fce7ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffda4c58c6f R14: 00007fd83091a300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:pid_is_meaningful fs/gfs2/glock.c:1464 [inline] RIP: 0010:dump_holder fs/gfs2/glock.c:2333 [inline] RIP: 0010:gfs2_dump_glock+0xd7b/0x1b60 fs/gfs2/glock.c:2447 Code: 05 dc d2 ac 0a 01 48 c7 c7 00 2d 3c 8b be e4 02 00 00 48 c7 c2 40 2d 3c 8b e8 51 98 b5 fd 90 4d 8d 65 20 4d 89 e6 49 c1 ee 03 <43> 0f b6 04 3e 84 c0 0f 85 c6 07 00 00 41 0f b7 1c 24 89 de 81 e6 RSP: 0018:ffffc9000318f120 EFLAGS: 00010202 RAX: ffffffff83b50e1f RBX: ffffc900167ef750 RCX: 0000000000040000 RDX: ffffc9000c851000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: ffffc9000318f408 R08: dffffc0000000000 R09: fffffbfff20b2e29 R10: fffffbfff20b2e29 R11: 1ffffffff20b2e28 R12: 638ca2e9e7fff620 R13: 638ca2e9e7fff600 R14: 0c71945d3cfffec4 R15: dffffc0000000000 FS: 00007fd83091a700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fdda7397718 CR3: 000000001f3b6000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 05 dc d2 ac 0a add $0xaacd2dc,%eax 5: 01 48 c7 add %ecx,-0x39(%rax) 8: c7 00 2d 3c 8b be movl $0xbe8b3c2d,(%rax) e: e4 02 in $0x2,%al 10: 00 00 add %al,(%rax) 12: 48 c7 c2 40 2d 3c 8b mov $0xffffffff8b3c2d40,%rdx 19: e8 51 98 b5 fd callq 0xfdb5986f 1e: 90 nop 1f: 4d 8d 65 20 lea 0x20(%r13),%r12 23: 4d 89 e6 mov %r12,%r14 26: 49 c1 ee 03 shr $0x3,%r14 * 2a: 43 0f b6 04 3e movzbl (%r14,%r15,1),%eax <-- trapping instruction 2f: 84 c0 test %al,%al 31: 0f 85 c6 07 00 00 jne 0x7fd 37: 41 0f b7 1c 24 movzwl (%r12),%ebx 3c: 89 de mov %ebx,%esi 3e: 81 .byte 0x81 3f: e6 .byte 0xe6