./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2297186605 <...> forked to background, child pid 3058 no interfaces have a carrier [ 97.361567][ T3059] 8021q: adding VLAN 0 to HW filter on device bond0 [ 97.389096][ T3059] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller syzkaller login: [ 105.373993][ T122] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.0.18' (ECDSA) to the list of known hosts. execve("./syz-executor2297186605", ["./syz-executor2297186605"], 0x7ffc56b67d10 /* 10 vars */) = 0 brk(NULL) = 0x55555555f000 brk(0x55555555fc40) = 0x55555555fc40 arch_prctl(ARCH_SET_FS, 0x55555555f300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor2297186605", 4096) = 28 brk(0x555555580c40) = 0x555555580c40 brk(0x555555581000) = 0x555555581000 mprotect(0x7fcea2e46000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555555f5d0) = 3467 ./strace-static-x86_64: Process 3467 attached [pid 3467] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 3467] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3467] setsid() = 1 [pid 3467] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 3467] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 3467] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 3467] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 3467] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 3467] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 3467] unshare(CLONE_NEWNS) = 0 [pid 3467] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 3467] unshare(CLONE_NEWIPC) = 0 [pid 3467] unshare(CLONE_NEWCGROUP) = 0 [pid 3467] unshare(CLONE_NEWUTS) = 0 [pid 3467] unshare(CLONE_SYSVSEM) = 0 [pid 3467] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3467] write(3, "16777216", 8) = 8 [pid 3467] close(3) = 0 [pid 3467] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 3467] write(3, "536870912", 9) = 9 [pid 3467] close(3) = 0 [pid 3467] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3467] write(3, "1024", 4) = 4 [pid 3467] close(3) = 0 [pid 3467] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3467] write(3, "8192", 4) = 4 [pid 3467] close(3) = 0 [pid 3467] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3467] write(3, "1024", 4) = 4 [pid 3467] close(3) = 0 [pid 3467] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 3467] write(3, "1024", 4) = 4 [pid 3467] close(3) = 0 [pid 3467] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 3467] write(3, "1024 1048576 500 1024", 21) = 21 [pid 3467] close(3) = 0 [pid 3467] getpid() = 1 [pid 3467] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [ 145.965809][ T3493] dump_stack_lvl+0x1c8/0x256 [ 145.970637][ T3493] dump_stack+0x1a/0x1d [ 145.974875][ T3493] panic+0x4d3/0xc64 [ 145.978921][ T3493] ? add_taint+0x104/0x1a0 [ 145.983472][ T3493] kmsan_report+0x2ca/0x2d0 [ 145.988173][ T3493] ? is_module_text_address+0x3e5/0x670 [ 145.994118][ T3493] ? kmsan_get_shadow_origin_ptr+0x49/0xa0 [ 146.000113][ T3493] ? kmsan_internal_check_memory+0x472/0x530 [ 146.006271][ T3493] ? kmsan_handle_skb+0x2a/0x60 [ 146.011243][ T3493] ? xmit_one+0x100/0x5f0 [ 146.015723][ T3493] ? dev_hard_start_xmit+0xe5/0x370 [ 146.021074][ T3493] ? __dev_queue_xmit+0x1dec/0x31f0 [ 146.026424][ T3493] ? __netlink_deliver_tap+0x7f6/0xca0 [ 146.032040][ T3493] ? netlink_unicast+0x10fb/0x1270 [ 146.037420][ T3493] ? netlink_sendmsg+0x127d/0x1430 [ 146.042736][ T3493] ? sock_write_iter+0x495/0x5e0 [ 146.047864][ T3493] ? vfs_write+0x830/0x1570 [ 146.052544][ T3493] ? ksys_write+0x21b/0x4e0 [ 146.057171][ T3493] ? __x64_sys_write+0x8f/0xd0 [ 146.062173][ T3493] ? do_syscall_64+0x3d/0xb0 [ 146.067439][ T3493] ? entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 146.073808][ T3493] ? kernel_text_address+0x11d/0x1a0 [ 146.079285][ T3493] ? kmsan_get_shadow_origin_ptr+0x49/0xa0 [ 146.085537][ T3493] ? kmsan_get_shadow_origin_ptr+0x49/0xa0 [ 146.091540][ T3493] ? kmsan_get_shadow_origin_ptr+0x49/0xa0 [ 146.097632][ T3493] ? kmsan_metadata_is_contiguous+0xda/0x1e0 [ 146.103810][ T3493] kmsan_internal_check_memory+0x472/0x530 [ 146.109779][ T3493] kmsan_handle_skb+0x2a/0x60 [ 146.114629][ T3493] xmit_one+0x100/0x5f0 [ 146.119014][ T3493] dev_hard_start_xmit+0xe5/0x370 [ 146.124171][ T3493] ? kmsan_get_shadow_origin_ptr+0x49/0xa0 [ 146.130176][ T3493] __dev_queue_xmit+0x1dec/0x31f0 [ 146.135370][ T3493] ? kmsan_get_shadow_origin_ptr+0x49/0xa0 [ 146.141290][ T3493] __netlink_deliver_tap+0x7f6/0xca0 [ 146.146746][ T3493] netlink_unicast+0x10fb/0x1270 [ 146.151960][ T3493] netlink_sendmsg+0x127d/0x1430 [ 146.157091][ T3493] ? netlink_getsockopt+0x13b0/0x13b0 [ 146.162598][ T3493] sock_write_iter+0x495/0x5e0 [ 146.167518][ T3493] ? sock_read_iter+0x560/0x560 [ 146.172469][ T3493] vfs_write+0x830/0x1570 [ 146.177091][ T3493] ksys_write+0x21b/0x4e0 [ 146.181547][ T3493] __x64_sys_write+0x8f/0xd0 [ 146.186285][ T3493] do_syscall_64+0x3d/0xb0 [ 146.190943][ T3493] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 146.196975][ T3493] RIP: 0033:0x7fcea2dd2ab9 [ 146.201453][ T3493] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 90 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 c0 ff ff ff f7 d8 64 89 01 48 [ 146.221170][ T3493] RSP: 002b:00007ffe2e9b3f48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 146.229779][ T3493] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fcea2dd2ab9 [ 146.237880][ T3493] RDX: 000000000000fcae RSI: 0000000020000240 RDI: 0000000000000003 [ 146.245977][ T3493] RBP: 0000000000000000 R08: 000000000000000d R09: 000000000000000d [ 146.254071][ T3493] R10: 00007ffe2e9b39c0 R11: 0000000000000246 R12: 00007ffe2e9b3f60 [ 146.262171][ T3493] R13: 00000000000f4240 R14: 0000000000000000 R15: 0000000000000000 [ 146.270296][ T3493] [ 146.273600][ T3493] Kernel Offset: disabled [ 146.277975][ T3493] Rebooting in 86400 seconds..