gfs2: fsid=syz:syz.s: G: s:SH n:2/925 f:aqo t:SH d:EX/0 a:0 v:0 r:3 m:20 p:1 gfs2: fsid=syz:syz.s: H: s:SH f:H e:0 p:6529 [syz.0.19] iterate_dir+0x399/0x570 fs/readdir.c:110 Oops: general protection fault, probably for non-canonical address 0xe3fffa2201d515a1: 0000 [#1] SMP KASAN PTI KASAN: maybe wild-memory-access in range [0x1ffff1100ea8ad08-0x1ffff1100ea8ad0f] CPU: 1 UID: 0 PID: 6532 Comm: syz.0.19 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 RIP: 0010:pid_is_meaningful fs/gfs2/glock.c:1421 [inline] RIP: 0010:dump_holder fs/gfs2/glock.c:2233 [inline] RIP: 0010:gfs2_dump_glock+0xe2c/0x1a60 fs/gfs2/glock.c:2351 Code: c2 40 cb 19 8c e8 a4 cb 83 fd ba 20 00 00 00 48 8d bc 24 c0 00 00 00 31 f6 e8 80 cf 11 fe 4d 8d 7c 24 20 4d 89 fe 49 c1 ee 03 <43> 0f b6 04 2e 84 c0 0f 85 77 06 00 00 41 0f b7 1f 89 de 81 e6 00 RSP: 0018:ffffc900033b7700 EFLAGS: 00010203 RAX: ffffc900033b77c0 RBX: 0000000000000001 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc900033b77e0 RBP: ffffc900033b79f0 R08: ffffc900033b77df R09: 0000000000000000 R10: ffffc900033b77c0 R11: fffff52000676efc R12: 1ffff1100ea8acec R13: dffffc0000000000 R14: 03fffe2201d515a1 R15: 1ffff1100ea8ad0c FS: 00007fb8224346c0(0000) GS:ffff888125349000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb822433ff8 CR3: 000000007da44000 CR4: 00000000003526f0 Call Trace: gfs2_consist_inode_i+0xf5/0x110 fs/gfs2/util.c:345 gfs2_dirent_scan+0x545/0x690 fs/gfs2/dir.c:-1 gfs2_dir_read+0x78e/0x1760 fs/gfs2/dir.c:1600 gfs2_readdir+0x169/0x1e0 fs/gfs2/file.c:116 iterate_dir+0x399/0x570 fs/readdir.c:110 __do_sys_getdents fs/readdir.c:319 [inline] __se_sys_getdents+0xf1/0x270 fs/readdir.c:304 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fb821599079 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fb822434028 EFLAGS: 00000246 ORIG_RAX: 000000000000004e RAX: ffffffffffffffda RBX: 00007fb8217c6080 RCX: 00007fb821599079 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005 RBP: 00007fb82162ba4c R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fb8217c6080 R15: 00007fff4f046258 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:pid_is_meaningful fs/gfs2/glock.c:1421 [inline] RIP: 0010:dump_holder fs/gfs2/glock.c:2233 [inline] RIP: 0010:gfs2_dump_glock+0xe2c/0x1a60 fs/gfs2/glock.c:2351 Code: c2 40 cb 19 8c e8 a4 cb 83 fd ba 20 00 00 00 48 8d bc 24 c0 00 00 00 31 f6 e8 80 cf 11 fe 4d 8d 7c 24 20 4d 89 fe 49 c1 ee 03 <43> 0f b6 04 2e 84 c0 0f 85 77 06 00 00 41 0f b7 1f 89 de 81 e6 00 RSP: 0018:ffffc900033b7700 EFLAGS: 00010203 RAX: ffffc900033b77c0 RBX: 0000000000000001 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc900033b77e0 RBP: ffffc900033b79f0 R08: ffffc900033b77df R09: 0000000000000000 R10: ffffc900033b77c0 R11: fffff52000676efc R12: 1ffff1100ea8acec R13: dffffc0000000000 R14: 03fffe2201d515a1 R15: 1ffff1100ea8ad0c FS: 00007fb8224346c0(0000) GS:ffff888125249000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb8215e67c0 CR3: 000000007da44000 CR4: 00000000003526f0 ---------------- Code disassembly (best guess): 0: c2 40 cb ret $0xcb40 3: 19 8c e8 a4 cb 83 fd sbb %ecx,-0x27c345c(%rax,%rbp,8) a: ba 20 00 00 00 mov $0x20,%edx f: 48 8d bc 24 c0 00 00 lea 0xc0(%rsp),%rdi 16: 00 17: 31 f6 xor %esi,%esi 19: e8 80 cf 11 fe call 0xfe11cf9e 1e: 4d 8d 7c 24 20 lea 0x20(%r12),%r15 23: 4d 89 fe mov %r15,%r14 26: 49 c1 ee 03 shr $0x3,%r14 * 2a: 43 0f b6 04 2e movzbl (%r14,%r13,1),%eax <-- trapping instruction 2f: 84 c0 test %al,%al 31: 0f 85 77 06 00 00 jne 0x6ae 37: 41 0f b7 1f movzwl (%r15),%ebx 3b: 89 de mov %ebx,%esi 3d: 81 .byte 0x81 3e: e6 00 out %al,$0x0