watchdog: BUG: soft lockup - CPU#1 stuck for 25s! [syz-executor.4:5830]
Modules linked in:
irq event stamp: 241718
hardirqs last  enabled at (241717): [<ffffffff8460144a>] asm_sysvec_apic_timer_interrupt+0x1a/0x20
hardirqs last disabled at (241718): [<ffffffff84504fff>] sysvec_apic_timer_interrupt+0xf/0x90
softirqs last  enabled at (241636): [<ffffffff8118dda3>] irq_exit_rcu+0x93/0xc0
softirqs last disabled at (241629): [<ffffffff8118dda3>] irq_exit_rcu+0x93/0xc0
CPU: 1 PID: 5830 Comm: syz-executor.4 Not tainted 6.4.0-rc6-next-20230613 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:skb_splice_from_iter+0xd/0xb50
Code: c9 12 1a fe e9 4e fe ff ff 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 41 57 49 89 f7 41 56 41 55 <49> 89 fd 41 54 55 53 48 bb 00 00 00 00 00 fc ff df 48 81 ec 68 01
RSP: 0018:ffff888042517308 EFLAGS: 00000246
RAX: ffff888042517728 RBX: 000000000000ffd0 RCX: 0000000000000cc0
RDX: 000000000000ffd0 RSI: ffff888042517738 RDI: ffff88801a958dc0
RBP: 0000000008000000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000008000000 R11: 0000000000000001 R12: 0000000000000001
R13: dffffc0000000000 R14: ffff88801a958dc0 R15: ffff888042517738
FS:  00007fa229fbf700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2c125000 CR3: 0000000009030000 CR4: 0000000000350ee0
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 __ip6_append_data.isra.0+0x1715/0x4560
 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+0xb4b/0x12f0
 __x64_sys_sendfile64+0x1d5/0x210
 do_syscall_64+0x3f/0x90
 entry_SYSCALL_64_after_hwframe+0x6e/0xd8
RIP: 0033:0x7fa22ca6ab19
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:00007fa229fbf188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007fa22cb7e020 RCX: 00007fa22ca6ab19
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000006
RBP: 00007fa22cac4f6d R08: 0000000000000000 R09: 0000000000000000
R10: 000000000001a000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd6edaa15f R14: 00007fa229fbf300 R15: 0000000000022000
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0 skipped: idling at default_idle+0xf/0x20
----------------
Code disassembly (best guess), 2 bytes skipped:
   0:	1a fe                	sbb    %dh,%bh
   2:	e9 4e fe ff ff       	jmpq   0xfffffe55
   7:	0f 1f 40 00          	nopl   0x0(%rax)
   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:	90                   	nop
  1a:	90                   	nop
  1b:	f3 0f 1e fa          	endbr64
  1f:	41 57                	push   %r15
  21:	49 89 f7             	mov    %rsi,%r15
  24:	41 56                	push   %r14
  26:	41 55                	push   %r13
* 28:	49 89 fd             	mov    %rdi,%r13 <-- trapping instruction
  2b:	41 54                	push   %r12
  2d:	55                   	push   %rbp
  2e:	53                   	push   %rbx
  2f:	48 bb 00 00 00 00 00 	movabs $0xdffffc0000000000,%rbx
  36:	fc ff df
  39:	48                   	rex.W
  3a:	81                   	.byte 0x81
  3b:	ec                   	in     (%dx),%al
  3c:	68                   	.byte 0x68
  3d:	01                   	.byte 0x1