general protection fault, probably for non-canonical address 0xfbfffb8000000004: 0000 [#1] PREEMPT SMP KASAN KASAN: maybe wild-memory-access in range [0xdffffc0000000020-0xdffffc0000000027] CPU: 1 PID: 6511 Comm: syz.3.235 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:pid_is_meaningful fs/gfs2/glock.c:1500 [inline] RIP: 0010:dump_holder fs/gfs2/glock.c:2306 [inline] RIP: 0010:gfs2_dump_glock+0xe1f/0x1a50 fs/gfs2/glock.c:2422 Code: c2 80 a1 0f 8b e8 31 61 c0 fd ba 20 00 00 00 48 8d bc 24 c0 00 00 00 31 f6 e8 cd c5 36 fe 4d 8d 7c 24 20 4d 89 fd 49 c1 ed 03 <43> 0f b6 44 35 00 84 c0 0f 85 78 06 00 00 41 0f b7 1f 89 de 81 e6 RSP: 0018:ffffc90018e6f740 EFLAGS: 00010a02 RAX: ffffc90018e6f800 RBX: 0000000000000001 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc90018e6f820 RBP: ffffc90018e6fa30 R08: ffffc90018e6f81f R09: 0000000000000000 R10: ffffc90018e6f800 R11: fffff520031cdf04 R12: dffffc0000000000 R13: 1bffff8000000004 R14: dffffc0000000000 R15: dffffc0000000020 FS: 00007f43591f66c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d320ff8 CR3: 000000002450e000 CR4: 00000000003526e0 Call Trace: gfs2_consist_inode_i+0xf5/0x110 fs/gfs2/util.c:446 gfs2_dirent_scan+0x525/0x650 fs/gfs2/dir.c:602 gfs2_dir_read+0x7d5/0x1800 fs/gfs2/dir.c:1599 gfs2_readdir+0x16d/0x1e0 fs/gfs2/file.c:116 iterate_dir+0x1c2/0x580 fs/readdir.c:106 __do_sys_getdents64 fs/readdir.c:405 [inline] __se_sys_getdents64+0xf6/0x270 fs/readdir.c:390 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x55/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f435af9acb9 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:00007f43591f6028 EFLAGS: 00000246 ORIG_RAX: 00000000000000d9 RAX: ffffffffffffffda RBX: 00007f435b216090 RCX: 00007f435af9acb9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00007f435b008bf7 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f435b216128 R14: 00007f435b216090 R15: 00007ffc917d44d8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:pid_is_meaningful fs/gfs2/glock.c:1500 [inline] RIP: 0010:dump_holder fs/gfs2/glock.c:2306 [inline] RIP: 0010:gfs2_dump_glock+0xe1f/0x1a50 fs/gfs2/glock.c:2422 Code: c2 80 a1 0f 8b e8 31 61 c0 fd ba 20 00 00 00 48 8d bc 24 c0 00 00 00 31 f6 e8 cd c5 36 fe 4d 8d 7c 24 20 4d 89 fd 49 c1 ed 03 <43> 0f b6 44 35 00 84 c0 0f 85 78 06 00 00 41 0f b7 1f 89 de 81 e6 RSP: 0018:ffffc90018e6f740 EFLAGS: 00010a02 RAX: ffffc90018e6f800 RBX: 0000000000000001 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc90018e6f820 RBP: ffffc90018e6fa30 R08: ffffc90018e6f81f R09: 0000000000000000 R10: ffffc90018e6f800 R11: fffff520031cdf04 R12: dffffc0000000000 R13: 1bffff8000000004 R14: dffffc0000000000 R15: dffffc0000000020 FS: 00007f43591f66c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f099bbb0700 CR3: 000000002450e000 CR4: 00000000003526e0 ---------------- Code disassembly (best guess): 0: c2 80 a1 ret $0xa180 3: 0f 8b e8 31 61 c0 jnp 0xc06131f1 9: fd std 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 cd c5 36 fe call 0xfe36c5eb 1e: 4d 8d 7c 24 20 lea 0x20(%r12),%r15 23: 4d 89 fd mov %r15,%r13 26: 49 c1 ed 03 shr $0x3,%r13 * 2a: 43 0f b6 44 35 00 movzbl 0x0(%r13,%r14,1),%eax <-- trapping instruction 30: 84 c0 test %al,%al 32: 0f 85 78 06 00 00 jne 0x6b0 38: 41 0f b7 1f movzwl (%r15),%ebx 3c: 89 de mov %ebx,%esi 3e: 81 .byte 0x81 3f: e6 .byte 0xe6