------------[ cut here ]------------
WARNING: CPU: 1 PID: 6803 at kernel/events/core.c:10349 __perf_event_overflow+0xaf9/0xe10 kernel/events/core.c:10349
Modules linked in:
CPU: 1 UID: 0 PID: 6803 Comm: syz.0.26 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:__perf_event_overflow+0xaf9/0xe10 kernel/events/core.c:10349
Code: 89 3e 4c 8b 3c 24 e9 c3 fc ff ff e8 a1 71 d0 ff 49 bd 00 00 00 00 00 fc ff df 4c 8b 74 24 28 e9 06 fe ff ff e8 88 71 d0 ff 90 <0f> 0b 90 e9 1b ff ff ff e8 7a 71 d0 ff 48 c7 c7 e0 e4 93 8b e8 9e
RSP: 0018:ffffc90003cb73c0 EFLAGS: 00010293
RAX: ffffffff81ef3ac8 RBX: ffff88801d2fb200 RCX: ffff888055108000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90003cb74d0 R08: ffff88801d2fb44f R09: 1ffff11003a5f689
R10: dffffc0000000000 R11: ffffed1003a5f68a R12: ffffc90003cb7968
R13: dffffc0000000000 R14: ffff88801d2fb448 R15: 0000000000000000
FS:  00007f8249e326c0(0000) GS:ffff888125d1c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000430 CR3: 000000007962a000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 perf_swevent_overflow kernel/events/core.c:10447 [inline]
 perf_swevent_event+0x2f4/0x5e0 kernel/events/core.c:-1
 do_perf_sw_event kernel/events/core.c:10587 [inline]
 ___perf_sw_event+0x4a1/0x700 kernel/events/core.c:10614
 __perf_sw_event+0xfa/0x1a0 kernel/events/core.c:10626
 perf_sw_event include/linux/perf_event.h:1596 [inline]
 do_user_addr_fault+0x12e4/0x1390 arch/x86/mm/fault.c:1283
 handle_page_fault arch/x86/mm/fault.c:1476 [inline]
 exc_page_fault+0x76/0xf0 arch/x86/mm/fault.c:1532
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0010:__put_user_nocheck_4+0x3/0x10 arch/x86/lib/putuser.S:104
Code: d9 0f 01 cb 89 01 31 c9 0f 01 ca c3 cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 01 cb <89> 01 31 c9 0f 01 ca e9 c1 44 03 00 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc90003cb7a18 EFLAGS: 00050246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000200000000430
RDX: ffff888055108000 RSI: 0000000000000000 RDI: 00000000ffffffff
RBP: ffffc90003cb7b90 R08: ffffc90003cb7607 R09: 1ffff92000796ec0
R10: dffffc0000000000 R11: fffff52000796ec1 R12: 0000000000000000
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000200000000400
 ____sys_recvmsg+0x2ab/0x460 net/socket.c:2847
 ___sys_recvmsg+0x1b5/0x510 net/socket.c:2876
 __sys_recvmsg net/socket.c:2909 [inline]
 __do_sys_recvmsg net/socket.c:2915 [inline]
 __se_sys_recvmsg net/socket.c:2912 [inline]
 __x64_sys_recvmsg+0x198/0x260 net/socket.c:2912
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8248f8e929
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:00007f8249e32038 EFLAGS: 00000246 ORIG_RAX: 000000000000002f
RAX: ffffffffffffffda RBX: 00007f82491b5fa0 RCX: 00007f8248f8e929
RDX: 0000000000000000 RSI: 0000200000000400 RDI: 0000000000000004
RBP: 00007f8249010b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f82491b5fa0 R15: 00007fff35d4a748
 </TASK>
----------------
Code disassembly (best guess):
   0:	d9 0f                	(bad)  (%rdi)
   2:	01 cb                	add    %ecx,%ebx
   4:	89 01                	mov    %eax,(%rcx)
   6:	31 c9                	xor    %ecx,%ecx
   8:	0f 01 ca             	clac
   b:	c3                   	ret
   c:	cc                   	int3
   d:	cc                   	int3
   e:	cc                   	int3
   f:	cc                   	int3
  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:	90                   	nop
  1c:	90                   	nop
  1d:	90                   	nop
  1e:	90                   	nop
  1f:	90                   	nop
  20:	90                   	nop
  21:	90                   	nop
  22:	90                   	nop
  23:	90                   	nop
  24:	90                   	nop
  25:	90                   	nop
  26:	90                   	nop
  27:	0f 01 cb             	stac
* 2a:	89 01                	mov    %eax,(%rcx) <-- trapping instruction
  2c:	31 c9                	xor    %ecx,%ecx
  2e:	0f 01 ca             	clac
  31:	e9 c1 44 03 00       	jmp    0x344f7
  36:	90                   	nop
  37:	90                   	nop
  38:	90                   	nop
  39:	90                   	nop
  3a:	90                   	nop
  3b:	90                   	nop
  3c:	90                   	nop
  3d:	90                   	nop
  3e:	90                   	nop
  3f:	90                   	nop