gfs2: fsid=syz:syz.0: H: s:SH f:H e:0 p:7647 [syz.0.386] __gfs2_lookup+0xa4/0x280 fs/gfs2/inode.c:897 Oops: general protection fault, probably for non-canonical address 0xdffffc0008bc06c5: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: probably user-memory-access in range [0x0000000045e03628-0x0000000045e0362f] CPU: 1 UID: 0 PID: 7590 Comm: syz.0.386 Not tainted 6.13.0-rc6-next-20250107-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 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 a4 82 fa 0b 01 48 c7 c7 a0 7e 4e 8c be 53 03 00 00 48 c7 c2 e0 7e 4e 8c e8 96 be 90 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:ffffc900030470c0 EFLAGS: 00010207 RAX: ffffffff840a48e2 RBX: 0000000000000001 RCX: 0000000000080000 RDX: ffffc900050a2000 RSI: 000000000007ffff RDI: 0000000000080000 RBP: ffffc900030473b0 R08: ffffffff840a48cb R09: 1ffffffff285b708 R10: dffffc0000000000 R11: fffffbfff285b709 R12: dffffc0000000000 R13: 0000000045e0360e R14: 0000000045e0362e R15: 0000000008bc06c5 FS: 00007f8700bd76c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f851e0a56c0 CR3: 000000007bcfa000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> 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 __lookup_slow+0x28c/0x3f0 fs/namei.c:1791 lookup_slow+0x53/0x70 fs/namei.c:1808 walk_component+0x2e1/0x410 fs/namei.c:2112 lookup_last fs/namei.c:2610 [inline] path_lookupat+0x16f/0x450 fs/namei.c:2634 filename_lookup+0x2a3/0x670 fs/namei.c:2663 user_path_at+0x3a/0x60 fs/namei.c:3070 bpf_obj_do_get kernel/bpf/inode.c:503 [inline] bpf_obj_get_user+0xbf/0x490 kernel/bpf/inode.c:538 __sys_bpf+0x639/0x810 kernel/bpf/syscall.c:5796 __do_sys_bpf kernel/bpf/syscall.c:5897 [inline] __se_sys_bpf kernel/bpf/syscall.c:5895 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5895 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: 0033:0x7f86ffd85d29 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:00007f8700bd7038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f86fff75fa0 RCX: 00007f86ffd85d29 RDX: 0000000000000018 RSI: 00000000200002c0 RDI: 0000000000000007 RBP: 00007f86ffe01b08 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f86fff75fa0 R15: 00007ffd60177a78 </TASK> 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 a4 82 fa 0b 01 48 c7 c7 a0 7e 4e 8c be 53 03 00 00 48 c7 c2 e0 7e 4e 8c e8 96 be 90 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:ffffc900030470c0 EFLAGS: 00010207 RAX: ffffffff840a48e2 RBX: 0000000000000001 RCX: 0000000000080000 RDX: ffffc900050a2000 RSI: 000000000007ffff RDI: 0000000000080000 RBP: ffffc900030473b0 R08: ffffffff840a48cb R09: 1ffffffff285b708 R10: dffffc0000000000 R11: fffffbfff285b709 R12: dffffc0000000000 R13: 0000000045e0360e R14: 0000000045e0362e R15: 0000000008bc06c5 FS: 00007f8700bd76c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffef1b1a578 CR3: 000000007bcfa000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: c6 05 a4 82 fa 0b 01 movb $0x1,0xbfa82a4(%rip) # 0xbfa82ab 7: 48 c7 c7 a0 7e 4e 8c mov $0xffffffff8c4e7ea0,%rdi e: be 53 03 00 00 mov $0x353,%esi 13: 48 c7 c2 e0 7e 4e 8c mov $0xffffffff8c4e7ee0,%rdx 1a: e8 96 be 90 fd call 0xfd90beb5 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