VFS: unable to find oldfs superblock on device loop3 ieee802154 phy0 wpan0: encryption failed: -22 ieee802154 phy1 wpan1: encryption failed: -22 watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [syz-executor.2:28474] Modules linked in: irq event stamp: 112088 hardirqs last enabled at (112087): [] trace_hardirqs_on_thunk+0x1a/0x1c hardirqs last disabled at (112088): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (112070): [] __do_softirq+0x678/0x980 kernel/softirq.c:318 softirqs last disabled at (111933): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (111933): [] irq_exit+0x215/0x260 kernel/softirq.c:412 CPU: 0 PID: 28474 Comm: syz-executor.2 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:memory_is_nonzero mm/kasan/kasan.c:183 [inline] RIP: 0010:memory_is_poisoned_n mm/kasan/kasan.c:210 [inline] RIP: 0010:memory_is_poisoned mm/kasan/kasan.c:241 [inline] RIP: 0010:check_memory_region_inline mm/kasan/kasan.c:257 [inline] RIP: 0010:check_memory_region+0x4e/0x170 mm/kasan/kasan.c:267 Code: ff 41 54 48 b8 00 00 00 00 00 fc ff df 4d 89 d1 55 48 89 fd 49 c1 e9 03 48 c1 ed 03 53 49 01 c1 48 01 c5 49 8d 59 01 48 89 e8 <48> 89 da 48 29 ea 48 83 fa 10 7e 5b 41 89 eb 41 83 e3 07 75 6c 4c RSP: 0018:ffff8880af0d7138 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: ffffed1011a0dc87 RBX: ffffed1011a0dc88 RCX: ffffffff81763e8e RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff88808d06e438 RBP: ffffed1011a0dc87 R08: 0000000000000000 R09: ffffed1011a0dc87 R10: ffff88808d06e43f R11: ffffffff8c66501b R12: ffff88808d06e438 R13: dffffc0000000000 R14: ffff88808d06e380 R15: 0000000000000010 FS: 00007f9f4afb6700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020e5f000 CR3: 000000004c7a9000 CR4: 00000000003426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: atomic64_read include/asm-generic/atomic-instrumented.h:27 [inline] perf_event_count kernel/events/core.c:3927 [inline] perf_output_read_group kernel/events/core.c:6217 [inline] perf_output_read+0xc0e/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:ffff8880af0d7a50 EFLAGS: 00050206 RAX: ffffed1010bc2ea0 RBX: 0000000000007500 RCX: 0000000000005fcb RDX: 0000000000007500 RSI: 0000000020e5f000 RDI: ffff888085e11535 RBP: 0000000020e5dacb R08: 0000000000000001 R09: ffffed1010bc2e9f R10: ffff888085e174ff R11: 0000000000000000 R12: ffff888085e10000 R13: 0000000020e64fcb 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: 0033:0x7f9f4c641049 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:00007f9f4afb6168 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f9f4c753f60 RCX: 00007f9f4c641049 RDX: ffffffffffffffef RSI: 0000000020d7cfcb RDI: 0000000000000006 RBP: 00007f9f4afb61d0 R08: 0000000000000000 R09: 0000000000000053 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffd11bcebef R14: 00007f9f4afb6300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:60 ---------------- Code disassembly (best guess): 0: ff 41 54 incl 0x54(%rcx) 3: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax a: fc ff df d: 4d 89 d1 mov %r10,%r9 10: 55 push %rbp 11: 48 89 fd mov %rdi,%rbp 14: 49 c1 e9 03 shr $0x3,%r9 18: 48 c1 ed 03 shr $0x3,%rbp 1c: 53 push %rbx 1d: 49 01 c1 add %rax,%r9 20: 48 01 c5 add %rax,%rbp 23: 49 8d 59 01 lea 0x1(%r9),%rbx 27: 48 89 e8 mov %rbp,%rax * 2a: 48 89 da mov %rbx,%rdx <-- trapping instruction 2d: 48 29 ea sub %rbp,%rdx 30: 48 83 fa 10 cmp $0x10,%rdx 34: 7e 5b jle 0x91 36: 41 89 eb mov %ebp,%r11d 39: 41 83 e3 07 and $0x7,%r11d 3d: 75 6c jne 0xab 3f: 4c rex.WR