./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1119399199 <...> Warning: Permanently added '10.128.0.178' (ED25519) to the list of known hosts. execve("./syz-executor1119399199", ["./syz-executor1119399199"], 0x7ffe38d76640 /* 10 vars */) = 0 brk(NULL) = 0x555556641000 brk(0x555556641d00) = 0x555556641d00 arch_prctl(ARCH_SET_FS, 0x555556641380) = 0 set_tid_address(0x555556641650) = 297 set_robust_list(0x555556641660, 24) = 0 rseq(0x555556641ca0, 0x20, 0, 0x53053053) = -1 ENOSYS (Function not implemented) prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1119399199", 4096) = 28 getrandom("\x85\x94\x6b\x22\xd7\x3e\xd3\x57", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556641d00 brk(0x555556662d00) = 0x555556662d00 brk(0x555556663000) = 0x555556663000 mprotect(0x7ff5e0f5b000, 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=0x555556641650) = 298 ./strace-static-x86_64: Process 298 attached [pid 298] set_robust_list(0x555556641660, 24) = 0 [pid 298] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 298] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 298] setsid() = 1 [pid 298] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 298] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 298] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 298] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 298] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 298] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 298] unshare(CLONE_NEWNS) = 0 [pid 298] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 298] unshare(CLONE_NEWIPC) = -1 EINVAL (Invalid argument) [pid 298] unshare(CLONE_NEWCGROUP) = 0 [pid 298] unshare(CLONE_NEWUTS) = 0 [pid 298] unshare(CLONE_SYSVSEM) = 0 [pid 298] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 298] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 298] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 298] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 298] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 298] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 298] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 298] getpid() = 1 [pid 298] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<) = 0 [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556641650) = 3 ./strace-static-x86_64: Process 306 attached [pid 306] set_robust_list(0x555556641660, 24) = 0 [pid 306] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 306] setpgid(0, 0) = 0 [pid 306] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 306] write(3, "1000", 4) = 4 [pid 306] close(3) = 0 [pid 306] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 3 [ 23.211402][ T303] A link change request failed with some changes committed already. Interface bridge_slave_0 may have been left with an inconsistent configuration, please check. [ 23.228268][ T303] netlink: 'syz-executor111': attribute type 27 has an invalid length. [ 23.252290][ T303] syz-executor111 (303) used greatest stack depth: 20360 bytes left [ 23.266872][ T306] IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready [ 23.278965][ T306] bridge0: port 1(bridge_slave_0) entered blocking state [ 23.285825][ T306] bridge0: port 1(bridge_slave_0) entered forwarding state [ 23.294542][ T306] bridge0: port 2(bridge_slave_1) entered blocking state [ 23.301402][ T306] bridge0: port 2(bridge_slave_1) entered forwarding state [ 23.312332][ T306] device veth0_vlan left promiscuous mode [ 23.318160][ T306] device veth0_vlan entered promiscuous mode [pid 306] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\x54\x00\x00\x00\x10\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x0e\x00\x00\x00\x08\x00\x0d\x00\x00\x00\x00\x00\x28\x00\x08\x80\x1c\x00\x1a\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x08\x00\x1b\x00\x00\x00\x00\x00", iov_len=84}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 84 [pid 306] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=4, insns=0x20000180, license="syzkaller", log_level=1, log_size=152, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128) = 4 [pid 306] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 5 [ 23.324767][ T306] device veth1_macvtap left promiscuous mode [ 23.331121][ T306] device veth1_macvtap entered promiscuous mode [ 23.337972][ T60] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 23.345897][ T60] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 23.353367][ T60] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 23.361695][ T60] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 23.369949][ T60] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 23.378116][ T60] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 23.386042][ T60] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 23.394145][ T60] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 23.402222][ T60] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 23.410432][ T60] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 23.418708][ T60] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 23.426785][ T60] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 23.434642][ T60] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 23.442872][ T60] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 23.450883][ T60] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 23.459719][ T306] netlink: 'syz-executor111': attribute type 27 has an invalid length. [ 23.473437][ T306] bridge0: port 2(bridge_slave_1) entered disabled state [ 23.480346][ T306] bridge0: port 1(bridge_slave_0) entered disabled state [ 23.489099][ T306] general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN [ 23.500617][ T306] KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017] [ 23.508858][ T306] CPU: 0 PID: 306 Comm: syz-executor111 Not tainted 6.1.43-syzkaller-00019-g1b639e97b8fc #0 [ 23.518751][ T306] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 23.528658][ T306] RIP: 0010:hrtimer_try_to_cancel+0x7d/0x320 [ 23.534461][ T306] Code: 00 48 8b 5d c8 48 8b 45 d0 42 80 3c 38 00 74 08 48 89 df e8 45 fd 54 00 48 8b 03 48 89 45 b0 4c 8d 60 10 4d 89 e5 49 c1 ed 03 <43> 0f b6 44 3d 00 84 c0 0f 85 00 01 00 00 41 8b 1c 24 89 de 83 e6 [ 23.553905][ T306] RSP: 0018:ffffc90000e866d0 EFLAGS: 00010202 [ 23.559803][ T306] RAX: 0000000000000000 RBX: ffff8881216f5148 RCX: 1ffff110242dea2a [ 23.567618][ T306] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8881216f5118 [ 23.575454][ T306] RBP: ffffc90000e86728 R08: ffffffff8405f44f R09: ffffed10242dea03 [ 23.583241][ T306] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000010 [ 23.591140][ T306] R13: 0000000000000002 R14: ffff8881216f5118 R15: dffffc0000000000 [ 23.598947][ T306] FS: 0000555556641380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 23.607716][ T306] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.614133][ T306] CR2: 0000000020000288 CR3: 0000000120e24000 CR4: 00000000003506b0 [ 23.621948][ T306] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.629757][ T306] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.637571][ T306] Call Trace: [ 23.640692][ T306] [ 23.643472][ T306] ? __die_body+0x62/0xb0 [ 23.647637][ T306] ? die_addr+0x9f/0xd0 [ 23.651628][ T306] ? exc_general_protection+0x317/0x4c0 [ 23.657014][ T306] ? _raw_spin_lock+0x1b0/0x1b0 [ 23.661697][ T306] ? asm_exc_general_protection+0x27/0x30 [ 23.667253][ T306] ? napi_disable+0xbf/0x110 [ 23.671678][ T306] ? hrtimer_try_to_cancel+0x7d/0x320 [ 23.676887][ T306] hrtimer_cancel+0x17/0x50 [ 23.681228][ T306] napi_disable+0xe8/0x110 [ 23.685479][ T306] veth_set_features+0x1c8/0x300 [ 23.690257][ T306] __netdev_update_features+0x865/0x1c40 [ 23.695720][ T306] ? __kasan_check_write+0x14/0x20 [ 23.700666][ T306] ? _raw_write_lock_bh+0xa4/0x170 [ 23.705631][ T306] ? dev_xdp_attach+0xdc0/0xdc0 [ 23.710303][ T306] ? del_timer+0x107/0x140 [ 23.714551][ T306] ? lock_timer_base+0x270/0x270 [ 23.719381][ T306] ? __local_bh_enable_ip+0x58/0x80 [ 23.724362][ T306] ? _raw_spin_unlock_bh+0x50/0x60 [ 23.729307][ T306] ? fib6_run_gc+0x44a/0x590 [ 23.733735][ T306] ? fib6_clean_all_skip_notify+0x2f0/0x2f0 [ 23.739464][ T306] netdev_update_features+0x6d/0x1c0 [ 23.744582][ T306] ? dev_disable_lro+0x1d0/0x1d0 [ 23.749360][ T306] veth_xdp+0x4fa/0x6b0 [ 23.753350][ T306] dev_xdp_install+0x151/0x380 [ 23.757949][ T306] ? veth_set_rx_headroom+0x160/0x160 [ 23.763157][ T306] ? bpf_xdp_link_fill_link_info+0xc0/0xc0 [ 23.768800][ T306] ? veth_set_rx_headroom+0x160/0x160 [ 23.774006][ T306] dev_xdp_attach+0xb52/0xdc0 [ 23.778521][ T306] dev_change_xdp_fd+0x1db/0x260 [ 23.783291][ T306] do_setlink+0x3877/0x3e90 [ 23.787634][ T306] ? vprintk_default+0x26/0x30 [ 23.792243][ T306] ? _printk+0xd1/0x111 [ 23.796226][ T306] ? __nla_validate_parse+0x4e0/0x2c30 [ 23.801522][ T306] ? nlmsg_parse_deprecated_strict+0x110/0x110 [ 23.807508][ T306] ? rtnl_newlink+0xe8/0x1f80 [ 23.812019][ T306] ? __nla_validate_parse+0x219d/0x2c30 [ 23.817399][ T306] ? ____sys_sendmsg+0x5dc/0x9d0 [ 23.822172][ T306] ? __sys_sendmsg+0x2a9/0x390 [ 23.826785][ T306] ? __x64_sys_sendmsg+0x7f/0x90 [ 23.831552][ T306] ? __nla_validate+0x50/0x50 [ 23.836068][ T306] rtnl_newlink+0x1077/0x1f80 [ 23.840577][ T306] ? rtnl_newlink+0xa71/0x1f80 [ 23.845186][ T306] ? rtnl_setlink+0x560/0x560 [ 23.849688][ T306] ? selinux_capable+0x2f1/0x430 [ 23.854461][ T306] ? selinux_capset+0xf0/0xf0 [ 23.858977][ T306] ? __mutex_lock_slowpath+0xe/0x10 [ 23.864006][ T306] ? bit_wait_io_timeout+0x120/0x120 [ 23.869138][ T306] ? ns_capable+0x89/0xe0 [ 23.873299][ T306] ? try_module_get+0x12a/0x290 [ 23.877981][ T306] ? rtnl_setlink+0x560/0x560 [ 23.882495][ T306] rtnetlink_rcv_msg+0x9a5/0xca0 [ 23.887271][ T306] ? 0xffffffffa000095c [ 23.891261][ T306] ? rtnetlink_bind+0x80/0x80 [ 23.895774][ T306] ? kernel_text_address+0xa9/0xe0 [ 23.900721][ T306] ? __kernel_text_address+0xd/0x40 [ 23.905753][ T306] ? unwind_get_return_address+0x4d/0x90 [ 23.911223][ T306] ? arch_stack_walk+0xf3/0x140 [ 23.915908][ T306] ? avc_has_perm_noaudit+0x348/0x430 [ 23.921117][ T306] ? memcpy+0x56/0x70 [ 23.924939][ T306] ? avc_has_perm_noaudit+0x2dd/0x430 [ 23.930146][ T306] ? avc_denied+0x1b0/0x1b0 [ 23.934484][ T306] ? avc_has_perm+0x16f/0x260 [ 23.938999][ T306] ? __alloc_skb+0x10f/0x2e0 [ 23.943425][ T306] ? netlink_sendmsg+0x7a6/0xd30 [ 23.948197][ T306] ? avc_has_perm_noaudit+0x430/0x430 [ 23.953404][ T306] netlink_rcv_skb+0x1cd/0x410 [ 23.958014][ T306] ? rtnetlink_bind+0x80/0x80 [ 23.962515][ T306] ? netlink_ack+0xe60/0xe60 [ 23.966947][ T306] ? __netlink_lookup+0x37b/0x3a0 [ 23.971803][ T306] rtnetlink_rcv+0x1c/0x20 [ 23.976068][ T306] netlink_unicast+0x8ee/0xad0 [ 23.980656][ T306] ? netlink_detachskb+0x90/0x90 [ 23.985430][ T306] ? security_netlink_send+0x7b/0xa0 [ 23.990555][ T306] netlink_sendmsg+0xa15/0xd30 [ 23.995150][ T306] ? netlink_getsockopt+0x560/0x560 [ 24.000272][ T306] ? security_socket_sendmsg+0x82/0xb0 [ 24.005562][ T306] ? netlink_getsockopt+0x560/0x560 [ 24.010599][ T306] ____sys_sendmsg+0x5dc/0x9d0 [ 24.015199][ T306] ? __sys_sendmsg_sock+0x40/0x40 [ 24.020073][ T306] __sys_sendmsg+0x2a9/0x390 [ 24.024493][ T306] ? ____sys_sendmsg+0x9d0/0x9d0 [ 24.029262][ T306] ? memset+0x35/0x40 [ 24.033084][ T306] ? ptrace_notify+0x249/0x350 [ 24.037681][ T306] ? debug_smp_processor_id+0x17/0x20 [ 24.042884][ T306] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 24.048787][ T306] ? exit_to_user_mode_prepare+0x39/0xa0 [ 24.054256][ T306] __x64_sys_sendmsg+0x7f/0x90 [ 24.058857][ T306] do_syscall_64+0x3d/0xb0 [ 24.063110][ T306] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 24.068834][ T306] RIP: 0033:0x7ff5e0ee2f69 [ 24.073095][ T306] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 19 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 b8 ff ff ff f7 d8 64 89 01 48 [ 24.092533][ T306] RSP: 002b:00007ffc0c611278 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 24.100775][ T306] RAX: ffffffffffffffda RBX: 00007ff5e0f30530 RCX: 00007ff5e0ee2f69 [ 24.108584][ T306] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005 [ 24.116396][ T306] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000100000000 [ 24.124210][ T306] R10: 0000000100000000 R11: 0000000000000246 R12: 0000000000000000 [ 24.132020][ T306] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 24.139837][ T306] [ 24.142695][ T306] Modules linked in: [ 24.146982][ T306] ---[ end trace 0000000000000000 ]--- [ 24.152382][ T306] RIP: 0010:hrtimer_try_to_cancel+0x7d/0x320 [ 24.158265][ T306] Code: 00 48 8b 5d c8 48 8b 45 d0 42 80 3c 38 00 74 08 48 89 df e8 45 fd 54 00 48 8b 03 48 89 45 b0 4c 8d 60 10 4d 89 e5 49 c1 ed 03 <43> 0f b6 44 3d 00 84 c0 0f 85 00 01 00 00 41 8b 1c 24 89 de 83 e6 [ 24.178294][ T306] RSP: 0018:ffffc90000e866d0 EFLAGS: 00010202 [ 24.184269][ T306] RAX: 0000000000000000 RBX: ffff8881216f5148 RCX: 1ffff110242dea2a [ 24.192217][ T306] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8881216f5118 [ 24.200141][ T306] RBP: ffffc90000e86728 R08: ffffffff8405f44f R09: ffffed10242dea03 [ 24.207928][ T306] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000010 [ 24.215621][ T306] R13: 0000000000000002 R14: ffff8881216f5118 R15: dffffc0000000000 [ 24.223698][ T306] FS: 0000555556641380(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 24.232561][ T306] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.238973][ T306] CR2: 0000562887891108 CR3: 0000000120e24000 CR4: 00000000003506a0 [ 24.246791][ T306] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.254476][ T306] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.262454][ T306] Kernel panic - not syncing: Fatal exception [ 24.268558][ T306] Kernel Offset: disabled [ 24.272676][ T306] Rebooting in 86400 seconds..