gfs2: fsid=syz:syz.0: H: s:SH f: e:0 p:7448 [syz.4.325] __gfs2_lookup+0x8f/0x270 fs/gfs2/inode.c:975 Oops: general protection fault, probably for non-canonical address 0xe3fffa2200ab7afb: 0000 [#1] SMP KASAN PTI KASAN: maybe wild-memory-access in range [0x1ffff110055bd7d8-0x1ffff110055bd7df] CPU: 1 UID: 0 PID: 7445 Comm: syz.4.325 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 RIP: 0010:pid_is_meaningful fs/gfs2/glock.c:1470 [inline] RIP: 0010:dump_holder fs/gfs2/glock.c:2278 [inline] RIP: 0010:gfs2_dump_glock+0xfbb/0x1bc0 fs/gfs2/glock.c:2398 Code: 40 62 91 8b be 65 03 00 00 48 c7 c2 80 62 91 8b e8 0a 20 a3 fd 49 8d 5d 20 49 89 de 49 c1 ee 03 48 b8 00 00 00 00 00 fc ff df <41> 0f b6 04 06 84 c0 0f 85 28 06 00 00 48 89 5c 24 28 0f b7 1b 89 RSP: 0018:ffffc9000fab7700 EFLAGS: 00010203 RAX: dffffc0000000000 RBX: 1ffff110055bd7df RCX: 0000000000080000 RDX: ffffc90005304000 RSI: 00000000000313d9 RDI: 00000000000313da RBP: ffffc9000fab79f0 R08: 0000000000000000 R09: ffffffff83fa4c4b R10: dffffc0000000000 R11: fffffbfff1eb8acf R12: ffffffff83fa4c4b R13: 1ffff110055bd7bf R14: 03fffe2200ab7afb R15: 0000000000000000 FS: 00007f654ac5c6c0(0000) GS:ffff888126269000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31af9ff8 CR3: 000000007a5ba000 CR4: 00000000003526f0 Call Trace: gfs2_consist_inode_i+0xf5/0x110 fs/gfs2/util.c:446 gfs2_dirent_scan+0x545/0x690 fs/gfs2/dir.c:-1 gfs2_dir_read+0x804/0x16f0 fs/gfs2/dir.c:1600 gfs2_readdir+0x14c/0x1b0 fs/gfs2/file.c:116 iterate_dir+0x399/0x570 fs/readdir.c:108 __do_sys_getdents64 fs/readdir.c:410 [inline] __se_sys_getdents64+0xe4/0x260 fs/readdir.c:396 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f6549d8eec9 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:00007f654ac5c038 EFLAGS: 00000246 ORIG_RAX: 00000000000000d9 RAX: ffffffffffffffda RBX: 00007f6549fe5fa0 RCX: 00007f6549d8eec9 RDX: 000000000000009a RSI: 00002000000000c0 RDI: 0000000000000006 RBP: 00007f6549e11f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f6549fe6038 R14: 00007f6549fe5fa0 R15: 00007fff292ac8b8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:pid_is_meaningful fs/gfs2/glock.c:1470 [inline] RIP: 0010:dump_holder fs/gfs2/glock.c:2278 [inline] RIP: 0010:gfs2_dump_glock+0xfbb/0x1bc0 fs/gfs2/glock.c:2398 Code: 40 62 91 8b be 65 03 00 00 48 c7 c2 80 62 91 8b e8 0a 20 a3 fd 49 8d 5d 20 49 89 de 49 c1 ee 03 48 b8 00 00 00 00 00 fc ff df <41> 0f b6 04 06 84 c0 0f 85 28 06 00 00 48 89 5c 24 28 0f b7 1b 89 RSP: 0018:ffffc9000fab7700 EFLAGS: 00010203 RAX: dffffc0000000000 RBX: 1ffff110055bd7df RCX: 0000000000080000 RDX: ffffc90005304000 RSI: 00000000000313d9 RDI: 00000000000313da RBP: ffffc9000fab79f0 R08: 0000000000000000 R09: ffffffff83fa4c4b R10: dffffc0000000000 R11: fffffbfff1eb8acf R12: ffffffff83fa4c4b R13: 1ffff110055bd7bf R14: 03fffe2200ab7afb R15: 0000000000000000 FS: 00007f654ac5c6c0(0000) GS:ffff888126269000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f80363d4f98 CR3: 000000007a5ba000 CR4: 00000000003526f0 ---------------- Code disassembly (best guess): 0: 40 62 91 rex (bad) 3: 8b be 65 03 00 00 mov 0x365(%rsi),%edi 9: 48 c7 c2 80 62 91 8b mov $0xffffffff8b916280,%rdx 10: e8 0a 20 a3 fd call 0xfda3201f 15: 49 8d 5d 20 lea 0x20(%r13),%rbx 19: 49 89 de mov %rbx,%r14 1c: 49 c1 ee 03 shr $0x3,%r14 20: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 27: fc ff df * 2a: 41 0f b6 04 06 movzbl (%r14,%rax,1),%eax <-- trapping instruction 2f: 84 c0 test %al,%al 31: 0f 85 28 06 00 00 jne 0x65f 37: 48 89 5c 24 28 mov %rbx,0x28(%rsp) 3c: 0f b7 1b movzwl (%rbx),%ebx 3f: 89 .byte 0x89