./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor743576238 <...> DUID 00:04:44:79:fb:c8:ec:17:8e:fd:6c:10:37:74:be:fc:69:d0 forked to background, child pid 4602 [ 97.519166][ T4603] 8021q: adding VLAN 0 to HW filter on device bond0 [ 97.555368][ T4603] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller syzkaller login: [ 105.383913][ T114] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.0.161' (ECDSA) to the list of known hosts. execve("./syz-executor743576238", ["./syz-executor743576238"], 0x7ffccdffc800 /* 10 vars */) = 0 brk(NULL) = 0x555555dc6000 brk(0x555555dc6c40) = 0x555555dc6c40 arch_prctl(ARCH_SET_FS, 0x555555dc6300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor743576238", 4096) = 27 brk(0x555555de7c40) = 0x555555de7c40 brk(0x555555de8000) = 0x555555de8000 mprotect(0x7f7b81a67000, 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=0x555555dc65d0) = 4950 ./strace-static-x86_64: Process 4950 attached [pid 4950] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 4950] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4950] setsid() = 1 [pid 4950] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 4950] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 4950] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 4950] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 4950] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 4950] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 4950] unshare(CLONE_NEWNS) = 0 [pid 4950] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 4950] unshare(CLONE_NEWIPC) = 0 [pid 4950] unshare(CLONE_NEWCGROUP) = 0 [pid 4950] unshare(CLONE_NEWUTS) = 0 [pid 4950] unshare(CLONE_SYSVSEM) = 0 [pid 4950] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 4950] write(3, "16777216", 8) = 8 [pid 4950] close(3) = 0 [pid 4950] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 4950] write(3, "536870912", 9) = 9 [pid 4950] close(3) = 0 [pid 4950] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 4950] write(3, "1024", 4) = 4 [pid 4950] close(3) = 0 [pid 4950] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 4950] write(3, "8192", 4) = 4 [pid 4950] close(3) = 0 [pid 4950] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 4950] write(3, "1024", 4) = 4 [pid 4950] close(3) = 0 [pid 4950] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 4950] write(3, "1024", 4) = 4 [pid 4950] close(3) = 0 [pid 4950] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 4950] write(3, "1024 1048576 500 1024", 21) = 21 [pid 4950] close(3) = 0 [pid 4950] getpid() = 1 [pid 4950] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [ 147.203636][ T4952] dump_stack_lvl+0x1cc/0x260 [ 147.208451][ T4952] dump_stack+0x1e/0x20 [ 147.212768][ T4952] panic+0x4e2/0xc70 [ 147.216894][ T4952] ? add_taint+0x108/0x1a0 [ 147.221467][ T4952] kmsan_report+0x2d0/0x2d0 [ 147.226066][ T4952] ? _raw_spin_lock_irqsave+0x45/0xd0 [ 147.231545][ T4952] ? __msan_warning+0x96/0x110 [ 147.236414][ T4952] ? ethnl_set_linkmodes+0x190b/0x19d0 [ 147.242018][ T4952] ? ethnl_default_set_doit+0x88d/0xde0 [ 147.247703][ T4952] ? genl_rcv_msg+0x141a/0x14c0 [ 147.252675][ T4952] ? netlink_rcv_skb+0x3f8/0x750 [ 147.257758][ T4952] ? genl_rcv+0x40/0x60 [ 147.262027][ T4952] ? netlink_unicast+0xf41/0x1270 [ 147.267270][ T4952] ? netlink_sendmsg+0x127d/0x1430 [ 147.272495][ T4952] ? ____sys_sendmsg+0xa24/0xe40 [ 147.277594][ T4952] ? ___sys_sendmsg+0x2a1/0x3f0 [ 147.282657][ T4952] ? __x64_sys_sendmsg+0x36b/0x540 [ 147.287939][ T4952] ? do_syscall_64+0x41/0xc0 [ 147.293034][ T4952] ? entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 147.299368][ T4952] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 147.305281][ T4952] ? kmsan_internal_memmove_metadata+0x204/0x360 [ 147.311752][ T4952] ? __msan_memcpy+0x108/0x1b0 [ 147.316660][ T4952] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 147.322849][ T4952] __msan_warning+0x96/0x110 [ 147.327570][ T4952] ethnl_set_linkmodes+0x190b/0x19d0 [ 147.333017][ T4952] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 147.338991][ T4952] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 147.344963][ T4952] ? ethnl_set_linkmodes_validate+0x540/0x540 [ 147.351203][ T4952] ? ethnl_set_linkmodes_validate+0x540/0x540 [ 147.357375][ T4952] ethnl_default_set_doit+0x88d/0xde0 [ 147.362885][ T4952] ? ethnl_default_done+0x90/0x90 [ 147.368049][ T4952] genl_rcv_msg+0x141a/0x14c0 [ 147.372967][ T4952] ? ethnl_default_done+0x90/0x90 [ 147.378169][ T4952] netlink_rcv_skb+0x3f8/0x750 [ 147.383085][ T4952] ? genl_bind+0x480/0x480 [ 147.387615][ T4952] ? genl_pernet_exit+0x60/0x60 [ 147.392580][ T4952] genl_rcv+0x40/0x60 [ 147.396726][ T4952] netlink_unicast+0xf41/0x1270 [ 147.401725][ T4952] netlink_sendmsg+0x127d/0x1430 [ 147.406836][ T4952] ? netlink_getsockopt+0x1400/0x1400 [ 147.412375][ T4952] ____sys_sendmsg+0xa24/0xe40 [ 147.417327][ T4952] ___sys_sendmsg+0x2a1/0x3f0 [ 147.422154][ T4952] ? filter_irq_stacks+0x164/0x1a0 [ 147.427520][ T4952] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 147.433468][ T4952] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 147.439493][ T4952] __x64_sys_sendmsg+0x36b/0x540 [ 147.444606][ T4952] do_syscall_64+0x41/0xc0 [ 147.449190][ T4952] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 147.455281][ T4952] RIP: 0033:0x7f7b819f36b9 [ 147.459787][ T4952] 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 [ 147.479500][ T4952] RSP: 002b:00007ffce96e6698 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 147.488010][ T4952] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f7b819f36b9 [ 147.496116][ T4952] RDX: 0000000000000000 RSI: 00000000200002c0 RDI: 0000000000000004 [ 147.504255][ T4952] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000f0b5ff [ 147.512442][ T4952] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 147.520536][ T4952] R13: 00007ffce96e66c0 R14: 00007ffce96e66b0 R15: 0000000000000003 [ 147.528759][ T4952] [ 147.532093][ T4952] Kernel Offset: disabled [ 147.536477][ T4952] Rebooting in 86400 seconds..