./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor808876475 <...> Warning: Permanently added '10.128.1.130' (ECDSA) to the list of known hosts. execve("./syz-executor808876475", ["./syz-executor808876475"], 0x7fffe1476060 /* 10 vars */) = 0 brk(NULL) = 0x5555558ce000 brk(0x5555558cec40) = 0x5555558cec40 arch_prctl(ARCH_SET_FS, 0x5555558ce300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor808876475", 4096) = 27 brk(0x5555558efc40) = 0x5555558efc40 brk(0x5555558f0000) = 0x5555558f0000 mprotect(0x7fbcb6ef1000, 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./strace-static-x86_64: Process 5076 attached , child_tidptr=0x5555558ce5d0) = 5076 [pid 5076] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5076] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5076] setsid() = 1 [pid 5076] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5076] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5076] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5076] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5076] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5076] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5076] unshare(CLONE_NEWNS) = 0 [pid 5076] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5076] unshare(CLONE_NEWIPC) = 0 [pid 5076] unshare(CLONE_NEWCGROUP) = 0 [pid 5076] unshare(CLONE_NEWUTS) = 0 [pid 5076] unshare(CLONE_SYSVSEM) = 0 [pid 5076] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5076] write(3, "16777216", 8) = 8 [pid 5076] close(3) = 0 [pid 5076] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5076] write(3, "536870912", 9) = 9 [pid 5076] close(3) = 0 [pid 5076] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5076] write(3, "1024", 4) = 4 [pid 5076] close(3) = 0 [pid 5076] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5076] write(3, "8192", 4) = 4 [pid 5076] close(3) = 0 [pid 5076] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5076] write(3, "1024", 4) = 4 [pid 5076] close(3) = 0 [pid 5076] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5076] write(3, "1024", 4) = 4 [pid 5076] close(3) = 0 [pid 5076] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5076] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5076] close(3) = 0 [pid 5076] getpid() = 1 [pid 5076] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<next is NULL [ 54.610775][ T5076] ------------[ cut here ]------------ [ 54.616234][ T5076] kernel BUG at lib/list_debug.c:49! [ 54.621953][ T5076] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 54.628030][ T5076] CPU: 1 PID: 5076 Comm: syz-executor808 Not tainted 6.2.0-rc7-syzkaller-01554-gde4287336794 #0 [ 54.638421][ T5076] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 [ 54.648457][ T5076] RIP: 0010:__list_del_entry_valid.cold+0x48/0x72 [ 54.654877][ T5076] Code: e8 26 2a f0 ff 0f 0b 4c 89 e2 48 89 ee 48 c7 c7 00 c4 a6 8a e8 12 2a f0 ff 0f 0b 48 89 ee 48 c7 c7 e0 c2 a6 8a e8 01 2a f0 ff <0f> 0b 4c 89 ea 48 89 ee 48 c7 c7 a0 c3 a6 8a e8 ed 29 f0 ff 0f 0b [ 54.674471][ T5076] RSP: 0018:ffffc90003c7f3b8 EFLAGS: 00010282 [ 54.680519][ T5076] RAX: 0000000000000033 RBX: ffff8880798f2000 RCX: 0000000000000000 [ 54.688473][ T5076] RDX: ffff888026991d40 RSI: ffffffff8166195c RDI: fffff5200078fe69 [ 54.696428][ T5076] RBP: ffff8880798f2380 R08: 0000000000000033 R09: 0000000000000000 [ 54.704379][ T5076] R10: 0000000080000000 R11: 0000000000000000 R12: 0000000000000000 [ 54.712331][ T5076] R13: 0000000000000000 R14: ffff8880798f2388 R15: 0000000080010000 [ 54.720287][ T5076] FS: 00005555558ce300(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 54.729218][ T5076] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.735803][ T5076] CR2: 0000000000668cf0 CR3: 000000001e4fe000 CR4: 00000000003506e0 [ 54.743760][ T5076] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 54.751715][ T5076] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 54.759667][ T5076] Call Trace: [ 54.762932][ T5076] [ 54.765846][ T5076] taprio_destroy+0x7e/0x6e0 [ 54.770429][ T5076] ? taprio_disable_offload+0x2b0/0x2b0 [ 54.775961][ T5076] qdisc_create+0xaca/0x1150 [ 54.780539][ T5076] ? tc_get_qdisc+0xb40/0xb40 [ 54.785204][ T5076] tc_modify_qdisc+0x488/0x19c0 [ 54.790046][ T5076] ? qdisc_create+0x1150/0x1150 [ 54.794887][ T5076] ? bpf_lsm_capable+0x9/0x10 [ 54.799549][ T5076] ? qdisc_create+0x1150/0x1150 [ 54.804386][ T5076] rtnetlink_rcv_msg+0x43e/0xca0 [ 54.809313][ T5076] ? rtnl_getlink+0xb00/0xb00 [ 54.813974][ T5076] ? asm_common_interrupt+0x26/0x40 [ 54.819173][ T5076] netlink_rcv_skb+0x165/0x440 [ 54.823934][ T5076] ? rtnl_getlink+0xb00/0xb00 [ 54.828595][ T5076] ? netlink_ack+0x1370/0x1370 [ 54.833349][ T5076] ? netlink_deliver_tap+0x1b1/0xc50 [ 54.838620][ T5076] netlink_unicast+0x547/0x7f0 [ 54.843371][ T5076] ? netlink_attachskb+0x890/0x890 [ 54.848467][ T5076] ? __virt_addr_valid+0x61/0x2e0 [ 54.853479][ T5076] ? __phys_addr_symbol+0x30/0x70 [ 54.858489][ T5076] ? __check_object_size+0x2e2/0x5a0 [ 54.863761][ T5076] netlink_sendmsg+0x91b/0xe10 [ 54.868519][ T5076] ? netlink_unicast+0x7f0/0x7f0 [ 54.873445][ T5076] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 54.878712][ T5076] ? netlink_unicast+0x7f0/0x7f0 [ 54.883633][ T5076] sock_sendmsg+0xde/0x190 [ 54.888050][ T5076] ____sys_sendmsg+0x71c/0x900 [ 54.892811][ T5076] ? copy_msghdr_from_user+0xfc/0x150 [ 54.898168][ T5076] ? kernel_sendmsg+0x50/0x50 [ 54.902829][ T5076] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 54.908801][ T5076] ___sys_sendmsg+0x110/0x1b0 [ 54.913477][ T5076] ? do_recvmmsg+0x6e0/0x6e0 [ 54.918074][ T5076] ? lock_release+0x810/0x810 [ 54.922733][ T5076] ? ptrace_stop.part.0+0x4a3/0x8e0 [ 54.927911][ T5076] ? do_raw_spin_lock+0x124/0x2b0 [ 54.932917][ T5076] ? rwlock_bug.part.0+0x90/0x90 [ 54.937836][ T5076] ? _raw_spin_lock_irq+0x45/0x50 [ 54.942862][ T5076] ? __fget_light+0x20a/0x270 [ 54.947534][ T5076] __sys_sendmsg+0xf7/0x1c0 [ 54.952025][ T5076] ? __sys_sendmsg_sock+0x40/0x40 [ 54.957035][ T5076] ? lock_downgrade+0x6e0/0x6e0 [ 54.961872][ T5076] ? lockdep_hardirqs_on+0x7d/0x100 [ 54.967057][ T5076] ? _raw_spin_unlock_irq+0x2e/0x50 [ 54.972243][ T5076] ? ptrace_notify+0xfe/0x140 [ 54.976905][ T5076] do_syscall_64+0x39/0xb0 [ 54.981305][ T5076] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 54.987205][ T5076] RIP: 0033:0x7fbcb6e7d839 [ 54.991608][ T5076] Code: 28 c3 e8 4a 15 00 00 66 2e 0f 1f 84 00 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 c0 ff ff ff f7 d8 64 89 01 48 [ 55.011195][ T5076] RSP: 002b:00007ffeb271eee8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 55.019590][ T5076] RAX: ffffffffffffffda RBX: 00007ffeb271eef8 RCX: 00007fbcb6e7d839 [ 55.027544][ T5076] RDX: 0000000000000000 RSI: 00000000200007c0 RDI: 0000000000000004 [ 55.035507][ T5076] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 55.043457][ T5076] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffeb271ef00 [ 55.051410][ T5076] R13: 00007ffeb271ef20 R14: 0000000000000000 R15: 0000000000000000 [ 55.059367][ T5076] [ 55.062368][ T5076] Modules linked in: [ 55.068881][ T5076] ---[ end trace 0000000000000000 ]--- [ 55.074353][ T5076] RIP: 0010:__list_del_entry_valid.cold+0x48/0x72 [ 55.081002][ T5076] Code: e8 26 2a f0 ff 0f 0b 4c 89 e2 48 89 ee 48 c7 c7 00 c4 a6 8a e8 12 2a f0 ff 0f 0b 48 89 ee 48 c7 c7 e0 c2 a6 8a e8 01 2a f0 ff <0f> 0b 4c 89 ea 48 89 ee 48 c7 c7 a0 c3 a6 8a e8 ed 29 f0 ff 0f 0b [ 55.100814][ T5076] RSP: 0018:ffffc90003c7f3b8 EFLAGS: 00010282 [ 55.106869][ T5076] RAX: 0000000000000033 RBX: ffff8880798f2000 RCX: 0000000000000000 [ 55.114904][ T5076] RDX: ffff888026991d40 RSI: ffffffff8166195c RDI: fffff5200078fe69 [ 55.123256][ T5076] RBP: ffff8880798f2380 R08: 0000000000000033 R09: 0000000000000000 [ 55.131243][ T5076] R10: 0000000080000000 R11: 0000000000000000 R12: 0000000000000000 [ 55.139414][ T5076] R13: 0000000000000000 R14: ffff8880798f2388 R15: 0000000080010000 [ 55.147370][ T5076] FS: 00005555558ce300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 55.156315][ T5076] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.163109][ T5076] CR2: 0000000020000600 CR3: 000000001e4fe000 CR4: 00000000003506f0 [ 55.171716][ T5076] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 55.180120][ T5076] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 55.188178][ T5076] Kernel panic - not syncing: Fatal exception [ 55.194414][ T5076] Kernel Offset: disabled [ 55.198725][ T5076] Rebooting in 86400 seconds..