gfs2: fsid=syz:syz.0: H: s:SH f:H e:0 p:6131 [syz.4.63] iterate_dir+0x571/0x800 fs/readdir.c:108 Oops: general protection fault, probably for non-canonical address 0xe3fffb240013c9f8: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: maybe wild-memory-access in range [0x1ffff920009e4fc0-0x1ffff920009e4fc7] CPU: 1 UID: 0 PID: 6147 Comm: syz.4.63 Not tainted 6.12.0-next-20241122-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 RIP: 0010:pid_is_meaningful fs/gfs2/glock.c:1463 [inline] RIP: 0010:dump_holder fs/gfs2/glock.c:2291 [inline] RIP: 0010:gfs2_dump_glock+0xf05/0x1bb0 fs/gfs2/glock.c:2407 Code: c6 05 b0 9b 1b 0c 01 48 c7 c7 80 1f 4d 8c be 53 03 00 00 48 c7 c2 c0 1f 4d 8c e8 a6 3a 94 fd 4d 8d 75 20 4d 89 f7 49 c1 ef 03 <43> 0f b6 04 27 84 c0 0f 85 b6 06 00 00 41 0f b7 1e 89 de 81 e6 00 RSP: 0018:ffffc90004eef140 EFLAGS: 00010202 RAX: ffffffff83e6d662 RBX: 0000000000000001 RCX: 0000000000080000 RDX: ffffc9000d594000 RSI: 0000000000049538 RDI: 0000000000049539 RBP: ffffc90004eef430 R08: ffffffff83e6d64b R09: 1ffffffff2851510 R10: dffffc0000000000 R11: fffffbfff2851511 R12: dffffc0000000000 R13: 1ffff920009e4fa0 R14: 1ffff920009e4fc0 R15: 03ffff240013c9f8 FS: 00007f79c46336c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2fe15ff8 CR3: 0000000034b2e000 CR4: 00000000003526f0 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:897 gfs2_atomic_open+0x9e/0x230 fs/gfs2/inode.c:1298 atomic_open fs/namei.c:3509 [inline] lookup_open fs/namei.c:3620 [inline] open_last_lookups fs/namei.c:3748 [inline] path_openat+0x101b/0x3590 fs/namei.c:3984 do_filp_open+0x27f/0x4e0 fs/namei.c:4014 do_sys_openat2+0x13e/0x1d0 fs/open.c:1402 do_sys_open fs/open.c:1417 [inline] __do_sys_open fs/open.c:1425 [inline] __se_sys_open fs/open.c:1421 [inline] __x64_sys_open+0x225/0x270 fs/open.c:1421 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: 0033:0x7f79c377e819 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:00007f79c4633038 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007f79c3936080 RCX: 00007f79c377e819 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000100 RBP: 00007f79c37f175e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f79c3936080 R15: 00007fff7b997858 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:pid_is_meaningful fs/gfs2/glock.c:1463 [inline] RIP: 0010:dump_holder fs/gfs2/glock.c:2291 [inline] RIP: 0010:gfs2_dump_glock+0xf05/0x1bb0 fs/gfs2/glock.c:2407 Code: c6 05 b0 9b 1b 0c 01 48 c7 c7 80 1f 4d 8c be 53 03 00 00 48 c7 c2 c0 1f 4d 8c e8 a6 3a 94 fd 4d 8d 75 20 4d 89 f7 49 c1 ef 03 <43> 0f b6 04 27 84 c0 0f 85 b6 06 00 00 41 0f b7 1e 89 de 81 e6 00 RSP: 0018:ffffc90004eef140 EFLAGS: 00010202 RAX: ffffffff83e6d662 RBX: 0000000000000001 RCX: 0000000000080000 RDX: ffffc9000d594000 RSI: 0000000000049538 RDI: 0000000000049539 RBP: ffffc90004eef430 R08: ffffffff83e6d64b R09: 1ffffffff2851510 R10: dffffc0000000000 R11: fffffbfff2851511 R12: dffffc0000000000 R13: 1ffff920009e4fa0 R14: 1ffff920009e4fc0 R15: 03ffff240013c9f8 FS: 00007f79c46336c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8ba6f09178 CR3: 0000000034b2e000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: c6 05 b0 9b 1b 0c 01 movb $0x1,0xc1b9bb0(%rip) # 0xc1b9bb7 7: 48 c7 c7 80 1f 4d 8c mov $0xffffffff8c4d1f80,%rdi e: be 53 03 00 00 mov $0x353,%esi 13: 48 c7 c2 c0 1f 4d 8c mov $0xffffffff8c4d1fc0,%rdx 1a: e8 a6 3a 94 fd call 0xfd943ac5 1f: 4d 8d 75 20 lea 0x20(%r13),%r14 23: 4d 89 f7 mov %r14,%r15 26: 49 c1 ef 03 shr $0x3,%r15 * 2a: 43 0f b6 04 27 movzbl (%r15,%r12,1),%eax <-- trapping instruction 2f: 84 c0 test %al,%al 31: 0f 85 b6 06 00 00 jne 0x6ed 37: 41 0f b7 1e movzwl (%r14),%ebx 3b: 89 de mov %ebx,%esi 3d: 81 .byte 0x81 3e: e6 00 out %al,$0x0