9pnet_fd: Insufficient options for proto=fd netlink: 280 bytes leftover after parsing attributes in process `syz-executor.0'. watchdog: BUG: soft lockup - CPU#0 stuck for 26s! [syz-executor.1:4593] Modules linked in: irq event stamp: 69218 hardirqs last enabled at (69217): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (69218): [] sysvec_apic_timer_interrupt+0xf/0x90 softirqs last enabled at (69128): [] irq_exit_rcu+0x93/0xc0 softirqs last disabled at (69123): [] irq_exit_rcu+0x93/0xc0 CPU: 0 PID: 4593 Comm: syz-executor.1 Not tainted 6.4.0-rc6-next-20230615 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__sanitizer_cov_trace_pc+0x11/0x70 Code: 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 65 8b 05 2d 85 b7 7e 89 c1 48 8b 34 24 <81> e1 00 01 00 00 65 48 8b 14 25 00 8b 03 00 a9 00 01 ff 00 74 0e RSP: 0018:ffff888043a57320 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000010000 RCX: 0000000000000000 RDX: ffff88804492d1c0 RSI: ffffffff83c355ac RDI: 0000000000000005 RBP: ffff888043b3f1f0 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001 R13: dffffc0000000000 R14: ffff8880436e3b40 R15: 0000000000000001 FS: 00007f07722cf700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2ea26000 CR3: 0000000019950000 CR4: 0000000000350ef0 Call Trace: __ip6_append_data.isra.0+0xbac/0x4560 ip6_append_data+0x1d4/0x530 rawv6_sendmsg+0x156e/0x3dc0 inet_sendmsg+0x121/0x150 sock_sendmsg+0x19b/0x200 splice_to_socket+0x949/0xe10 direct_splice_actor+0x119/0x180 splice_direct_to_actor+0x349/0x9d0 do_splice_direct+0x1bb/0x290 do_sendfile+0xb6b/0x1370 __x64_sys_sendfile64+0x1d5/0x210 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x6e/0xd8 RIP: 0033:0x7f0774d7ab19 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f07722cf188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f0774e8e020 RCX: 00007f0774d7ab19 RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000007 RBP: 00007f0774dd4f6d R08: 0000000000000000 R09: 0000000000000000 R10: 000000000001a000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcd3317ebf R14: 00007f07722cf300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at default_idle+0xf/0x20 ---------------- Code disassembly (best guess): 0: 66 0f 1f 84 00 00 00 nopw 0x0(%rax,%rax,1) 7: 00 00 9: 90 nop a: 90 nop b: 90 nop c: 90 nop d: 90 nop e: 90 nop f: 90 nop 10: 90 nop 11: 90 nop 12: 90 nop 13: 90 nop 14: 90 nop 15: 90 nop 16: 90 nop 17: 90 nop 18: 90 nop 19: f3 0f 1e fa endbr64 1d: 65 8b 05 2d 85 b7 7e mov %gs:0x7eb7852d(%rip),%eax # 0x7eb78551 24: 89 c1 mov %eax,%ecx 26: 48 8b 34 24 mov (%rsp),%rsi * 2a: 81 e1 00 01 00 00 and $0x100,%ecx <-- trapping instruction 30: 65 48 8b 14 25 00 8b mov %gs:0x38b00,%rdx 37: 03 00 39: a9 00 01 ff 00 test $0xff0100,%eax 3e: 74 0e je 0x4e