EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue
watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.5:9817]
Modules linked in:
irq event stamp: 137828
hardirqs last  enabled at (137827): [<ffffffff87400976>] restore_regs_and_return_to_kernel+0x0/0x2a
hardirqs last disabled at (137828): [<ffffffff874018ae>] apic_timer_interrupt+0x8e/0xa0 arch/x86/entry/entry_64.S:793
softirqs last  enabled at (132886): [<ffffffff8760068b>] __do_softirq+0x68b/0x9ff kernel/softirq.c:314
softirqs last disabled at (132671): [<ffffffff81321cf3>] invoke_softirq kernel/softirq.c:368 [inline]
softirqs last disabled at (132671): [<ffffffff81321cf3>] irq_exit+0x193/0x240 kernel/softirq.c:409
CPU: 0 PID: 9817 Comm: syz-executor.5 Not tainted 4.14.295-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
task: ffff888093e8a0c0 task.stack: ffff8880b0690000
RIP: 0010:perf_output_read_group kernel/events/core.c:5888 [inline]
RIP: 0010:perf_output_read+0x7b3/0x1090 kernel/events/core.c:5932
RSP: 0000:ffff8880b0697290 EFLAGS: 00000a02 ORIG_RAX: ffffffffffffff10
RAX: 1ffff110151bc632 RBX: 0000000000000000 RCX: ffffc90006eeb000
RDX: 0000000000040000 RSI: ffffffff81638023 RDI: ffff8880a8de3190
RBP: ffff8880b0697368 R08: 0000000000000001 R09: ffffed1014b17851
R10: ffff8880a58bc28f R11: 0000002798238263 R12: dffffc0000000000
R13: ffffed10160d2eaa R14: ffff8880b0697528 R15: 0000000000000008
FS:  00007fc796d44700(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020e96000 CR3: 00000000918d2000 CR4: 00000000003406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 perf_output_sample+0xa28/0x16f0 kernel/events/core.c:5974
 __perf_event_output kernel/events/core.c:6287 [inline]
 perf_event_output_forward+0xf8/0x1f0 kernel/events/core.c:6300
 __perf_event_overflow+0x113/0x310 kernel/events/core.c:7549
 perf_swevent_overflow kernel/events/core.c:7625 [inline]
 perf_swevent_event+0x299/0x460 kernel/events/core.c:7653
 do_perf_sw_event kernel/events/core.c:7766 [inline]
 ___perf_sw_event+0x2a1/0x480 kernel/events/core.c:7797
 __perf_sw_event+0x4f/0x100 kernel/events/core.c:7809
 perf_sw_event include/linux/perf_event.h:1046 [inline]
 __do_page_fault+0x692/0xad0 arch/x86/mm/fault.c:1483
 page_fault+0x25/0x50 arch/x86/entry/entry_64.S:1123
RIP: 0010:copy_user_enhanced_fast_string+0xe/0x20 arch/x86/lib/copy_user_64.S:181
RSP: 0000:ffff8880b0697a60 EFLAGS: 00050206
RAX: ffffed1012c06000 RBX: 0000000000008000 RCX: 0000000000007acb
RDX: 0000000000008000 RSI: 0000000020e96000 RDI: ffff888096028535
RBP: 0000000020e95acb R08: 0000000000000001 R09: ffffed1012c05fff
R10: ffff88809602ffff R11: 0000000000000000 R12: ffff888096028000
R13: 00007ffffffff000 R14: 0000000020e9dacb R15: ffff8880a30aa200
 copy_user_generic arch/x86/include/asm/uaccess_64.h:37 [inline]
 raw_copy_from_user arch/x86/include/asm/uaccess_64.h:55 [inline]
 copyin+0x99/0xc0 lib/iov_iter.c:146
 _copy_from_iter_full+0x19c/0x760 lib/iov_iter.c:610
 copy_from_iter_full include/linux/uio.h:126 [inline]
 skb_do_copy_data_nocache include/net/sock.h:1892 [inline]
 skb_copy_to_page_nocache include/net/sock.h:1918 [inline]
 tcp_sendmsg_locked+0x23fc/0x2ef0 net/ipv4/tcp.c:1360
 tcp_sendmsg+0x2b/0x40 net/ipv4/tcp.c:1457
 inet_sendmsg+0x11a/0x4e0 net/ipv4/af_inet.c:762
 sock_sendmsg_nosec net/socket.c:646 [inline]
 sock_sendmsg+0xb5/0x100 net/socket.c:656
 SYSC_sendto net/socket.c:1763 [inline]
 SyS_sendto+0x1c7/0x2c0 net/socket.c:1731
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7fc7983d05a9
RSP: 002b:00007fc796d44168 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007fc7984f1f80 RCX: 00007fc7983d05a9
RDX: ffffffffffffffef RSI: 0000000020d7cfcb RDI: 0000000000000007
RBP: 00007fc79842b580 R08: 0000000000000000 R09: 0000000000000053
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd7141ef8f R14: 00007fc796d44300 R15: 0000000000022000
Code: 00 10 00 00 49 89 46 28 e8 ab c7 f1 ff 48 85 db 0f 85 f0 fe ff ff e8 9d c7 f1 ff 48 8b 44 24 08 48 8d 78 10 48 89 f8 48 c1 e8 03 <42> 80 3c 20 00 0f 85 7a 06 00 00 48 8b 44 24 08 48 8b 40 10 48 
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1 skipped: idling at pc 0xffffffff8724544e