./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4202590290 <...> Warning: Permanently added '10.128.0.241' (ED25519) to the list of known hosts. execve("./syz-executor4202590290", ["./syz-executor4202590290"], 0x7fffc758d9b0 /* 10 vars */) = 0 brk(NULL) = 0x555556967000 brk(0x555556967d00) = 0x555556967d00 arch_prctl(ARCH_SET_FS, 0x555556967380) = 0 set_tid_address(0x555556967650) = 5057 set_robust_list(0x555556967660, 24) = 0 rseq(0x555556967ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor4202590290", 4096) = 28 getrandom("\x9a\xf2\xbd\x25\xdd\x09\xfd\x31", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556967d00 brk(0x555556988d00) = 0x555556988d00 brk(0x555556989000) = 0x555556989000 mprotect(0x7f326ee4f000, 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=0x555556967650) = 5058 ./strace-static-x86_64: Process 5058 attached [pid 5058] set_robust_list(0x555556967660, 24) = 0 [pid 5058] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5058] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5058] setsid() = 1 [pid 5058] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5058] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5058] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5058] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5058] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5058] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5058] unshare(CLONE_NEWNS) = 0 [pid 5058] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5058] unshare(CLONE_NEWIPC) = 0 [pid 5058] unshare(CLONE_NEWCGROUP) = 0 [pid 5058] unshare(CLONE_NEWUTS) = 0 [pid 5058] unshare(CLONE_SYSVSEM) = 0 [pid 5058] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5058] write(3, "16777216", 8) = 8 [pid 5058] close(3) = 0 [pid 5058] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5058] write(3, "536870912", 9) = 9 [pid 5058] close(3) = 0 [pid 5058] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5058] write(3, "1024", 4) = 4 [pid 5058] close(3) = 0 [pid 5058] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5058] write(3, "8192", 4) = 4 [pid 5058] close(3) = 0 [pid 5058] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5058] write(3, "1024", 4) = 4 [pid 5058] close(3) = 0 [pid 5058] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5058] write(3, "1024", 4) = 4 [pid 5058] close(3) = 0 [pid 5058] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5058] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5058] close(3) = 0 [pid 5058] getpid() = 1 [pid 5058] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [ 69.193460][ T5058] ? show_regs+0x8e/0xa0 [ 69.197710][ T5058] ? __die+0x2c/0x80 [ 69.201596][ T5058] ? page_fault_oops+0x397/0xab0 [ 69.206625][ T5058] ? dump_pagetable+0x530/0x530 [ 69.211480][ T5058] ? netem_change+0x1505/0x2520 [ 69.216351][ T5058] ? netem_dump+0x1260/0x1260 [ 69.221112][ T5058] ? do_user_addr_fault+0x562/0x1020 [ 69.226497][ T5058] ? rcu_is_watching+0x12/0xb0 [ 69.231251][ T5058] ? exc_page_fault+0x5c/0xc0 [ 69.235912][ T5058] ? asm_exc_page_fault+0x26/0x30 [ 69.241028][ T5058] ? qdisc_create+0xca7/0x1440 [ 69.246049][ T5058] qdisc_create+0x6c0/0x1440 [ 69.250830][ T5058] ? tc_get_qdisc+0xdf0/0xdf0 [ 69.256221][ T5058] ? __nla_parse+0x40/0x50 [ 69.261500][ T5058] tc_modify_qdisc+0x4d5/0x1c30 [ 69.266362][ T5058] ? qdisc_create+0x1440/0x1440 [ 69.271245][ T5058] ? bpf_lsm_capable+0x9/0x10 [ 69.275909][ T5058] ? security_capable+0x92/0xc0 [ 69.280746][ T5058] ? qdisc_create+0x1440/0x1440 [ 69.285585][ T5058] rtnetlink_rcv_msg+0x3c7/0xe00 [ 69.290504][ T5058] ? rtnl_fill_vf+0x490/0x490 [ 69.295167][ T5058] netlink_rcv_skb+0x16b/0x440 [ 69.299917][ T5058] ? rtnl_fill_vf+0x490/0x490 [ 69.304663][ T5058] ? netlink_ack+0x1380/0x1380 [ 69.309424][ T5058] ? netlink_deliver_tap+0x1a0/0xd00 [ 69.314716][ T5058] netlink_unicast+0x53b/0x810 [ 69.319493][ T5058] ? netlink_attachskb+0x870/0x870 [ 69.324668][ T5058] ? __phys_addr_symbol+0x30/0x70 [ 69.329795][ T5058] ? __check_object_size+0x322/0x730 [ 69.335082][ T5058] netlink_sendmsg+0x8b4/0xd70 [ 69.339854][ T5058] ? netlink_unicast+0x810/0x810 [ 69.344819][ T5058] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 69.350115][ T5058] ? netlink_unicast+0x810/0x810 [ 69.355143][ T5058] __sock_sendmsg+0xd5/0x180 [ 69.360095][ T5058] ____sys_sendmsg+0x6ac/0x940 [ 69.364871][ T5058] ? copy_msghdr_from_user+0x10b/0x160 [ 69.370329][ T5058] ? kernel_sendmsg+0x50/0x50 [ 69.375007][ T5058] ? finish_task_switch.isra.0+0x217/0xcb0 [ 69.380812][ T5058] ? __switch_to+0x749/0x1370 [ 69.385482][ T5058] ___sys_sendmsg+0x135/0x1d0 [ 69.390148][ T5058] ? do_recvmmsg+0x740/0x740 [ 69.394723][ T5058] ? lock_sync+0x190/0x190 [ 69.399233][ T5058] ? ptrace_stop.part.0+0x44a/0x930 [ 69.404437][ T5058] ? __fget_light+0x172/0x200 [ 69.409118][ T5058] __sys_sendmsg+0x117/0x1e0 [ 69.413700][ T5058] ? __sys_sendmsg_sock+0x30/0x30 [ 69.418708][ T5058] ? ptrace_notify+0xf1/0x130 [ 69.423374][ T5058] ? _raw_spin_unlock_irq+0x2e/0x50 [ 69.428562][ T5058] ? ptrace_notify+0xf1/0x130 [ 69.433234][ T5058] do_syscall_64+0xd0/0x250 [ 69.437750][ T5058] entry_SYSCALL_64_after_hwframe+0x62/0x6a [ 69.443671][ T5058] RIP: 0033:0x7f326edd7519 [ 69.448252][ T5058] Code: 48 83 c4 28 c3 e8 d7 19 00 00 0f 1f 80 00 00 00 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 [ 69.467860][ T5058] RSP: 002b:00007ffc201dc9d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 69.476360][ T5058] RAX: ffffffffffffffda RBX: 00007f326ee24390 RCX: 00007f326edd7519 [ 69.484337][ T5058] RDX: 0000000000000000 RSI: 00000000200007c0 RDI: 0000000000000004 [ 69.492490][ T5058] RBP: 0000000000000003 R08: 0000555500000000 R09: 0000555500000000 [ 69.500698][ T5058] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc201dca20 [ 69.508746][ T5058] R13: 00007ffc201dc9f0 R14: 0000000000000001 R15: 00007ffc201dca20 [ 69.516864][ T5058] [ 69.519922][ T5058] Modules linked in: [ 69.523802][ T5058] CR2: 0000000000000000 [ 69.528035][ T5058] ---[ end trace 0000000000000000 ]--- [ 69.533490][ T5058] RIP: 0010:0x0 [ 69.536952][ T5058] Code: Unable to access opcode bytes at 0xffffffffffffffd6. [ 69.544296][ T5058] RSP: 0018:ffffc90003d1f408 EFLAGS: 00010246 [ 69.550385][ T5058] RAX: dffffc0000000000 RBX: ffff88802ce0d000 RCX: ffffffff889a5187 [ 69.558353][ T5058] RDX: 0000000000000000 RSI: 000000000000fff2 RDI: ffff88802ce0d000 [ 69.566329][ T5058] RBP: ffffffff8f3b9260 R08: 0000000000000001 R09: 0000000000000000 [ 69.574298][ T5058] R10: 0000000000000001 R11: 00000000ee2ebe72 R12: ffff88802c580000 [ 69.582364][ T5058] R13: ffffffff8beef640 R14: 0000000000000010 R15: ffffffff8f3b9260 [ 69.590339][ T5058] FS: 0000555556967380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 69.599286][ T5058] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 69.606129][ T5058] CR2: ffffffffffffffd6 CR3: 000000002c7d0000 CR4: 00000000003506f0 [ 69.614130][ T5058] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 69.622100][ T5058] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 69.630097][ T5058] Kernel panic - not syncing: Fatal exception [ 69.636474][ T5058] Kernel Offset: disabled [ 69.640888][ T5058] Rebooting in 86400 seconds..