syz-executor.2 (25291): drop_caches: 2 Bluetooth: hci0: command 0x0406 tx timeout Bluetooth: hci4: command 0x0406 tx timeout wlan1: No active IBSS STAs - trying to scan for other IBSS networks with same SSID (merge) watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [syz-executor.4:25239] Modules linked in: irq event stamp: 101154 hardirqs last enabled at (101153): [] trace_hardirqs_on_thunk+0x1a/0x1c hardirqs last disabled at (101154): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (101152): [] __do_softirq+0x678/0x980 kernel/softirq.c:318 softirqs last disabled at (101035): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (101035): [] irq_exit+0x215/0x260 kernel/softirq.c:412 CPU: 1 PID: 25239 Comm: syz-executor.4 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 RIP: 0010:__sanitizer_cov_trace_const_cmp8+0x4/0x20 kernel/kcov.c:194 Code: 00 00 00 00 00 90 48 8b 0c 24 89 f2 89 fe bf 05 00 00 00 e9 ce fe ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 8b 0c 24 <48> 89 f2 48 89 fe bf 07 00 00 00 e9 ac fe ff ff 66 66 2e 0f 1f 84 RSP: 0018:ffff8880a1c37150 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: ffff8880a1c374a0 RCX: ffffffff81763ec6 RDX: ffffed1016a1c038 RSI: 0000000000000004 RDI: 0000000000000000 RBP: 0000000000000159 R08: 0000000000000000 R09: ffffed1016a1c037 R10: ffff8880b50e01bf R11: ffffffff8c66505b R12: ffff8880b50e01b8 R13: dffffc0000000000 R14: 0000000000000004 R15: ffff8880b50e0100 FS: 00007fb7b2b9f700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020f57000 CR3: 00000000a20c1000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: perf_output_read_group kernel/events/core.c:6218 [inline] perf_output_read+0xc46/0x1270 kernel/events/core.c:6254 perf_output_sample+0xc1b/0x18f0 kernel/events/core.c:6296 __perf_event_output kernel/events/core.c:6621 [inline] perf_event_output_forward+0x12f/0x270 kernel/events/core.c:6634 __perf_event_overflow+0x13c/0x370 kernel/events/core.c:7907 perf_swevent_overflow kernel/events/core.c:7983 [inline] perf_swevent_event+0x347/0x550 kernel/events/core.c:8011 do_perf_sw_event kernel/events/core.c:8124 [inline] ___perf_sw_event+0x309/0x570 kernel/events/core.c:8155 __perf_sw_event+0x58/0x120 kernel/events/core.c:8167 perf_sw_event include/linux/perf_event.h:1074 [inline] __do_page_fault+0x80e/0xd60 arch/x86/mm/fault.c:1453 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1205 RIP: 0010:copy_user_enhanced_fast_string+0xe/0x20 arch/x86/lib/copy_user_64.S:181 Code: 89 d1 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 31 c0 0f 01 ca c3 0f 1f 80 00 00 00 00 0f 01 cb 83 fa 40 0f 82 70 ff ff ff 89 d1 a4 31 c0 0f 01 ca c3 66 2e 0f 1f 84 00 00 00 00 00 0f 01 cb 83 RSP: 0018:ffff8880a1c37a50 EFLAGS: 00050206 RAX: ffffed1007ed8ea0 RBX: 0000000000007500 RCX: 0000000000005fcb RDX: 0000000000007500 RSI: 0000000020f57000 RDI: ffff88803f6c1535 RBP: 0000000020f55acb R08: 0000000000000001 R09: ffffed1007ed8e9f R10: ffff88803f6c74ff R11: 0000000000000000 R12: ffff88803f6c0000 R13: 0000000020f5cfcb R14: 00007ffffffff000 R15: 0000000000000000 copy_user_generic arch/x86/include/asm/uaccess_64.h:37 [inline] raw_copy_from_user arch/x86/include/asm/uaccess_64.h:71 [inline] copyin+0xcd/0xf0 lib/iov_iter.c:146 _copy_from_iter_full+0x1df/0x7c0 lib/iov_iter.c:724 copy_from_iter_full include/linux/uio.h:124 [inline] skb_do_copy_data_nocache include/net/sock.h:1971 [inline] skb_copy_to_page_nocache include/net/sock.h:1997 [inline] tcp_sendmsg_locked+0x126b/0x2f60 net/ipv4/tcp.c:1364 tcp_sendmsg+0x2b/0x40 net/ipv4/tcp.c:1462 inet_sendmsg+0x132/0x5a0 net/ipv4/af_inet.c:798 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xc3/0x120 net/socket.c:661 __sys_sendto+0x21a/0x320 net/socket.c:1899 __do_sys_sendto net/socket.c:1911 [inline] __se_sys_sendto net/socket.c:1907 [inline] __x64_sys_sendto+0xdd/0x1b0 net/socket.c:1907 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fb7b422b5a9 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fb7b2b9f168 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007fb7b434cf80 RCX: 00007fb7b422b5a9 RDX: ffffffffffffffef RSI: 0000000020d7cfcb RDI: 0000000000000007 RBP: 00007fb7b4286580 R08: 0000000000000000 R09: 0000000000000053 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff9536818f R14: 00007fb7b2b9f300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:60