Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f04596be0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f04589abf80 RCX: 00007f045887dea9 RDX: 0000000000000010 RSI: 00000000200002c0 RDI: 000000000000000f RBP: 00007f04596be120 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 000000000000000b R14: 00007f04589abf80 R15: 00007ffe9751ba68 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 14785 at fs/libfs.c:2117 stashed_dentry_prune+0x97/0xa0 fs/libfs.c:2117 Modules linked in: CPU: 0 PID: 14785 Comm: syz-executor.0 Not tainted 6.8.0-syzkaller-05236-g443574b03387 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:stashed_dentry_prune+0x97/0xa0 fs/libfs.c:2117 Code: 00 00 e8 ac c1 e2 ff 31 c9 4c 89 f0 f0 49 0f b1 0f eb 05 e8 7b 77 7f ff 5b 41 5c 41 5e 41 5f c3 cc cc cc cc e8 6a 77 7f ff 90 <0f> 0b 90 eb e9 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc900031df708 EFLAGS: 00010293 RAX: ffffffff82157906 RBX: ffff888076aee6d8 RCX: ffff888052950000 RDX: 0000000000000000 RSI: 0000000000000010 RDI: ffff888076aee5e0 RBP: 0000000000000001 R08: ffffffff820fa354 R09: 1ffff1100ed5dccf R10: dffffc0000000000 R11: ffffffff82157870 R12: dffffc0000000000 R13: dffffc0000000000 R14: ffff888076aee5e0 R15: 0000000000000000 FS: 00007f04596be6c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020003ff6 CR3: 000000002201e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: __dentry_kill+0xa9/0x630 fs/dcache.c:594 dput+0x19f/0x2b0 fs/dcache.c:845 prepare_anon_dentry fs/libfs.c:2018 [inline] path_from_stashed+0x695/0xb00 fs/libfs.c:2094 bpf_prog_offload_info_fill+0x101/0x560 kernel/bpf/offload.c:475 bpf_prog_get_info_by_fd kernel/bpf/syscall.c:4603 [inline] bpf_obj_get_info_by_fd+0x19f8/0x4120 kernel/bpf/syscall.c:4916 __sys_bpf+0x685/0x810 kernel/bpf/syscall.c:5670 __do_sys_bpf kernel/bpf/syscall.c:5738 [inline] __se_sys_bpf kernel/bpf/syscall.c:5736 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5736 do_syscall_64+0xfb/0x240 entry_SYSCALL_64_after_hwframe+0x6d/0x75 RIP: 0033:0x7f045887dea9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f04596be0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f04589abf80 RCX: 00007f045887dea9 RDX: 0000000000000010 RSI: 00000000200002c0 RDI: 000000000000000f RBP: 00007f04596be120 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 000000000000000b R14: 00007f04589abf80 R15: 00007ffe9751ba68 ---------------- Code disassembly (best guess): 0: 28 00 sub %al,(%rax) 2: 00 00 add %al,(%rax) 4: 75 05 jne 0xb 6: 48 83 c4 28 add $0x28,%rsp a: c3 ret b: e8 e1 20 00 00 call 0x20f1 10: 90 nop 11: 48 89 f8 mov %rdi,%rax 14: 48 89 f7 mov %rsi,%rdi 17: 48 89 d6 mov %rdx,%rsi 1a: 48 89 ca mov %rcx,%rdx 1d: 4d 89 c2 mov %r8,%r10 20: 4d 89 c8 mov %r9,%r8 23: 4c 8b 4c 24 08 mov 0x8(%rsp),%r9 28: 0f 05 syscall * 2a: 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax <-- trapping instruction 30: 73 01 jae 0x33 32: c3 ret 33: 48 c7 c1 b0 ff ff ff mov $0xffffffffffffffb0,%rcx 3a: f7 d8 neg %eax 3c: 64 89 01 mov %eax,%fs:(%rcx) 3f: 48 rex.W