loop6: detected capacity change from 0 to 109095
FAT-fs (loop6): bogus number of reserved sectors
FAT-fs (loop6): This doesn't look like a DOS 1.x volume; no bootstrapping code
FAT-fs (loop6): Can't find a valid FAT filesystem
watchdog: BUG: soft lockup - CPU#1 stuck for 26s! [syz-executor.5:5786]
Modules linked in:
irq event stamp: 68858
hardirqs last  enabled at (68857): [<ffffffff8460144a>] asm_sysvec_apic_timer_interrupt+0x1a/0x20
hardirqs last disabled at (68858): [<ffffffff84507fff>] sysvec_apic_timer_interrupt+0xf/0x90
softirqs last  enabled at (68746): [<ffffffff8118dda3>] irq_exit_rcu+0x93/0xc0
softirqs last disabled at (68741): [<ffffffff8118dda3>] irq_exit_rcu+0x93/0xc0
CPU: 1 PID: 5786 Comm: syz-executor.5 Not tainted 6.4.0-rc6-next-20230616 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:skb_splice_from_iter+0x476/0xb50
Code: 14 00 00 00 00 48 8b 84 24 60 01 00 00 65 48 2b 04 25 28 00 00 00 0f 85 81 06 00 00 48 8b 44 24 08 48 81 c4 68 01 00 00 5b 5d <41> 5c 41 5d 41 5e 41 5f e9 5d e1 eb 00 e8 e8 ec e4 fd 48 89 d8 31
RSP: 0018:ffff88804953f300 EFLAGS: 00000296
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffc90003fff000
RDX: 0000000000040000 RSI: ffffffff8367188d RDI: ffff8880424b6218
RBP: 0000000008000000 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
R13: ffff8880424b6140 R14: ffff8880424b6140 R15: ffff88804953f738
FS:  00007f46a0664700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2e025000 CR3: 000000001bb86000 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+0xb6b/0x1370
 __x64_sys_sendfile64+0x1d5/0x210
 do_syscall_64+0x3f/0x90
 entry_SYSCALL_64_after_hwframe+0x6e/0xd8
RIP: 0033:0x7f46a310fb19
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:00007f46a0664188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f46a3223020 RCX: 00007f46a310fb19
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000006
RBP: 00007f46a3169f6d R08: 0000000000000000 R09: 0000000000000000
R10: 000000000001a000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd80c37a4f R14: 00007f46a0664300 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):
   0:	14 00                	adc    $0x0,%al
   2:	00 00                	add    %al,(%rax)
   4:	00 48 8b             	add    %cl,-0x75(%rax)
   7:	84 24 60             	test   %ah,(%rax,%riz,2)
   a:	01 00                	add    %eax,(%rax)
   c:	00 65 48             	add    %ah,0x48(%rbp)
   f:	2b 04 25 28 00 00 00 	sub    0x28,%eax
  16:	0f 85 81 06 00 00    	jne    0x69d
  1c:	48 8b 44 24 08       	mov    0x8(%rsp),%rax
  21:	48 81 c4 68 01 00 00 	add    $0x168,%rsp
  28:	5b                   	pop    %rbx
  29:	5d                   	pop    %rbp
* 2a:	41 5c                	pop    %r12 <-- trapping instruction
  2c:	41 5d                	pop    %r13
  2e:	41 5e                	pop    %r14
  30:	41 5f                	pop    %r15
  32:	e9 5d e1 eb 00       	jmpq   0xebe194
  37:	e8 e8 ec e4 fd       	callq  0xfde4ed24
  3c:	48 89 d8             	mov    %rbx,%rax
  3f:	31                   	.byte 0x31