Oops: general protection fault, probably for non-canonical address 0xdffffc000836b15a: 0000 [#1] PREEMPT SMP KASAN NOPTI KASAN: probably user-memory-access in range [0x0000000041b58ad0-0x0000000041b58ad7] CPU: 0 PID: 6716 Comm: syz-executor.0 Not tainted 6.9.0-syzkaller-g1b10b390d945 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 RIP: 0010:pid_is_meaningful fs/gfs2/glock.c:1474 [inline] RIP: 0010:dump_holder fs/gfs2/glock.c:2291 [inline] RIP: 0010:gfs2_dump_glock+0x11d3/0x1c80 fs/gfs2/glock.c:2407 Code: e8 42 1c 24 07 31 ff 89 c3 89 c6 e8 77 25 d5 fd 85 db 58 0f 85 75 04 00 00 e8 89 2a d5 fd 49 8d 5c 24 20 48 89 d8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 74 08 3c 01 0f 8e 80 06 00 00 41 0f b7 6c 24 RSP: 0018:ffffc90007c871e8 EFLAGS: 00010206 RAX: 000000000836b15a RBX: 0000000041b58ad3 RCX: ffffffff83b8db9c RDX: ffff88801d46a440 RSI: ffffffff83b8d717 RDI: 0000000000000001 RBP: ffffffff8b79d120 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: 0000000041b58ab3 R13: ffffc90007c872d8 R14: ffffc900079c7d42 R15: dffffc0000000000 FS: 00007f25457a46c0(0000) GS:ffff88806b000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f25457a4d58 CR3: 000000001a954000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: gfs2_consist_inode_i+0x104/0x150 fs/gfs2/util.c:456 gfs2_dirent_scan+0x2fc/0x3c0 fs/gfs2/dir.c:602 gfs2_dirent_search+0x459/0x5c0 fs/gfs2/dir.c:850 gfs2_dir_search+0x98/0x2e0 fs/gfs2/dir.c:1650 gfs2_lookupi+0x4b9/0x6f0 fs/gfs2/inode.c:340 __gfs2_lookup+0xa1/0x290 fs/gfs2/inode.c:896 gfs2_atomic_open+0xdd/0x240 fs/gfs2/inode.c:1297 atomic_open fs/namei.c:3368 [inline] lookup_open.isra.0+0xc98/0x13c0 fs/namei.c:3476 open_last_lookups fs/namei.c:3574 [inline] path_openat+0x92f/0x2990 fs/namei.c:3804 do_filp_open+0x1dc/0x430 fs/namei.c:3834 do_sys_openat2+0x17a/0x1e0 fs/open.c:1406 do_sys_open fs/open.c:1421 [inline] __do_sys_open fs/open.c:1429 [inline] __se_sys_open fs/open.c:1425 [inline] __x64_sys_open+0x154/0x1e0 fs/open.c:1425 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcf/0x260 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f2544a7dea9 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:00007f25457a40c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007f2544bac050 RCX: 00007f2544a7dea9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000200025c0 RBP: 00007f2544aca4a4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f2544bac050 R15: 00007ffdb630e288 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:pid_is_meaningful fs/gfs2/glock.c:1474 [inline] RIP: 0010:dump_holder fs/gfs2/glock.c:2291 [inline] RIP: 0010:gfs2_dump_glock+0x11d3/0x1c80 fs/gfs2/glock.c:2407 Code: e8 42 1c 24 07 31 ff 89 c3 89 c6 e8 77 25 d5 fd 85 db 58 0f 85 75 04 00 00 e8 89 2a d5 fd 49 8d 5c 24 20 48 89 d8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 74 08 3c 01 0f 8e 80 06 00 00 41 0f b7 6c 24 RSP: 0018:ffffc90007c871e8 EFLAGS: 00010206 RAX: 000000000836b15a RBX: 0000000041b58ad3 RCX: ffffffff83b8db9c RDX: ffff88801d46a440 RSI: ffffffff83b8d717 RDI: 0000000000000001 RBP: ffffffff8b79d120 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: 0000000041b58ab3 R13: ffffc90007c872d8 R14: ffffc900079c7d42 R15: dffffc0000000000 FS: 00007f25457a46c0(0000) GS:ffff88806b200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f195a1ff000 CR3: 000000001a954000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: e8 42 1c 24 07 call 0x7241c47 5: 31 ff xor %edi,%edi 7: 89 c3 mov %eax,%ebx 9: 89 c6 mov %eax,%esi b: e8 77 25 d5 fd call 0xfdd52587 10: 85 db test %ebx,%ebx 12: 58 pop %rax 13: 0f 85 75 04 00 00 jne 0x48e 19: e8 89 2a d5 fd call 0xfdd52aa7 1e: 49 8d 5c 24 20 lea 0x20(%r12),%rbx 23: 48 89 d8 mov %rbx,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 0f b6 04 38 movzbl (%rax,%r15,1),%eax <-- trapping instruction 2f: 84 c0 test %al,%al 31: 74 08 je 0x3b 33: 3c 01 cmp $0x1,%al 35: 0f 8e 80 06 00 00 jle 0x6bb 3b: 41 rex.B 3c: 0f .byte 0xf 3d: b7 6c mov $0x6c,%bh 3f: 24 .byte 0x24