./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor173461463 <...> DUID 00:04:b0:7e:30:9f:4d:11:81:da:bf:2d:3d:77:4c:17:c1:ba forked to background, child pid 3185 [ 26.835460][ T3186] 8021q: adding VLAN 0 to HW filter on device bond0 [ 26.847704][ T3186] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.117' (ECDSA) to the list of known hosts. execve("./syz-executor173461463", ["./syz-executor173461463"], 0x7fffab80b4f0 /* 10 vars */) = 0 brk(NULL) = 0x555556c37000 brk(0x555556c37c40) = 0x555556c37c40 arch_prctl(ARCH_SET_FS, 0x555556c37300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor173461463", 4096) = 27 brk(0x555556c58c40) = 0x555556c58c40 brk(0x555556c59000) = 0x555556c59000 mprotect(0x7f1fa75d4000, 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 3607 attached , child_tidptr=0x555556c375d0) = 3607 [pid 3607] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 3607] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3607] setsid() = 1 [pid 3607] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 3607] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 3607] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 3607] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 3607] prlimit64(0, RLIMIT_CORE, {rlim_cur=0, rlim_max=0}, NULL) = 0 [pid 3607] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 3607] unshare(CLONE_NEWNS) = 0 [pid 3607] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 3607] unshare(CLONE_NEWIPC) = 0 [pid 3607] unshare(CLONE_NEWCGROUP) = 0 [pid 3607] unshare(CLONE_NEWUTS) = 0 [pid 3607] unshare(CLONE_SYSVSEM) = 0 [pid 3607] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3607] write(3, "16777216", 8) = 8 [pid 3607] close(3) = 0 [pid 3607] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 3607] write(3, "536870912", 9) = 9 [pid 3607] close(3) = 0 [pid 3607] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3607] write(3, "1024", 4) = 4 [pid 3607] close(3) = 0 [pid 3607] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3607] write(3, "8192", 4) = 4 [pid 3607] close(3) = 0 [pid 3607] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3607] write(3, "1024", 4) = 4 [pid 3607] close(3) = 0 [pid 3607] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 3607] write(3, "1024", 4) = 4 [pid 3607] close(3) = 0 [pid 3607] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 3607] write(3, "1024 1048576 500 1024", 21) = 21 [pid 3607] close(3) = 0 [pid 3607] getpid() = 1 [pid 3607] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556c375d0) = 3 ./strace-static-x86_64: Process 3623 attached [pid 3623] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3623] setpgid(0, 0) = 0 [pid 3623] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3623] write(3, "1000", 4) = 4 [pid 3623] close(3) = 0 [pid 3623] socket(AF_INET6, SOCK_RAW, IPPROTO_ICMPV6) = 3 [pid 3623] ioctl(3, SIOCGIFINDEX, {ifr_name="geneve0", ifr_ifindex=63}) = 0 [pid 3623] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 4 [ 52.277120][ T3623] general protection fault, probably for non-canonical address 0xdffffc000000000f: 0000 [#1] PREEMPT SMP KASAN [ 52.288878][ T3623] KASAN: null-ptr-deref in range [0x0000000000000078-0x000000000000007f] [ 52.297283][ T3623] CPU: 0 PID: 3623 Comm: syz-executor173 Not tainted 6.0.0-rc3-syzkaller-00830-g2018b22a759e #0 [ 52.307698][ T3623] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 [ 52.317750][ T3623] RIP: 0010:metadata_dst_free+0x1f/0x80 [ 52.323300][ T3623] Code: 5c 41 5d e9 83 6d 23 fa 0f 1f 00 55 48 89 fd 53 e8 76 6d 23 fa 48 8d 7d 78 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 04 3c 03 7e 3f 8b 5d 78 31 ff 89 de e8 09 6a [ 52.342907][ T3623] RSP: 0018:ffffc90003d3f5f8 EFLAGS: 00010206 [ 52.348977][ T3623] RAX: dffffc0000000000 RBX: ffff8880746d8000 RCX: 0000000000000000 [ 52.356957][ T3623] RDX: 000000000000000f RSI: ffffffff87589a9a RDI: 0000000000000078 [ 52.364929][ T3623] RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000001 [ 52.372905][ T3623] R10: 0000000000000001 R11: 0000000000000000 R12: ffffc90003d3f678 [ 52.380883][ T3623] R13: ffffffff84f434d0 R14: ffff8880746d85b0 R15: ffffc90003d3f678 [ 52.388861][ T3623] FS: 0000555556c37300(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 [ 52.397803][ T3623] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.404393][ T3623] CR2: 0000000020001140 CR3: 0000000071279000 CR4: 00000000003506f0 [ 52.412369][ T3623] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 52.420337][ T3623] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 52.428306][ T3623] Call Trace: [ 52.431585][ T3623] [ 52.434511][ T3623] macsec_free_netdev+0x3a/0x150 [ 52.439456][ T3623] netdev_run_todo+0x6bb/0x1100 [ 52.444317][ T3623] ? generic_xdp_install+0x4a0/0x4a0 [ 52.449608][ T3623] ? rtnl_newlink+0x6f/0xa0 [ 52.454116][ T3623] ? trace_kmalloc+0x32/0x100 [ 52.458802][ T3623] ? __rtnl_newlink+0x17e0/0x17e0 [ 52.463832][ T3623] rtnetlink_rcv_msg+0x447/0xca0 [ 52.468774][ T3623] ? rtnl_fdb_dump+0x9a0/0x9a0 [ 52.473538][ T3623] ? netdev_core_pick_tx+0x2e0/0x2e0 [ 52.478827][ T3623] ? ref_tracker_free+0x370/0x6b0 [ 52.483863][ T3623] ? ref_tracker_dir_exit+0x3e0/0x3e0 [ 52.489245][ T3623] netlink_rcv_skb+0x153/0x420 [ 52.494019][ T3623] ? rtnl_fdb_dump+0x9a0/0x9a0 [ 52.498789][ T3623] ? netlink_ack+0xd50/0xd50 [ 52.503394][ T3623] ? netlink_deliver_tap+0x1a2/0xc40 [ 52.508711][ T3623] ? netlink_deliver_tap+0x1b1/0xc40 [ 52.514018][ T3623] netlink_unicast+0x543/0x7f0 [ 52.518791][ T3623] ? netlink_attachskb+0x880/0x880 [ 52.523911][ T3623] ? __phys_addr+0xc4/0x140 [ 52.528420][ T3623] ? __phys_addr_symbol+0x2c/0x70 [ 52.533446][ T3623] ? __check_object_size+0x2de/0x700 [ 52.538753][ T3623] netlink_sendmsg+0x917/0xe10 [ 52.543526][ T3623] ? netlink_unicast+0x7f0/0x7f0 [ 52.548481][ T3623] ? bpf_lsm_socket_sendmsg+0x5/0x10 [ 52.553773][ T3623] ? netlink_unicast+0x7f0/0x7f0 [ 52.558718][ T3623] sock_sendmsg+0xcf/0x120 [ 52.563141][ T3623] ____sys_sendmsg+0x6eb/0x810 [ 52.567908][ T3623] ? copy_msghdr_from_user+0xfc/0x150 [ 52.573300][ T3623] ? kernel_sendmsg+0x50/0x50 [ 52.577982][ T3623] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 52.583969][ T3623] ___sys_sendmsg+0x110/0x1b0 [ 52.588652][ T3623] ? do_recvmmsg+0x6e0/0x6e0 [ 52.593252][ T3623] ? lock_release+0x780/0x780 [ 52.597932][ T3623] ? ptrace_stop.part.0+0x5ec/0xa80 [ 52.603136][ T3623] ? do_raw_spin_lock+0x120/0x2a0 [ 52.608161][ T3623] ? rwlock_bug.part.0+0x90/0x90 [ 52.613103][ T3623] ? _raw_spin_lock_irq+0x41/0x50 [ 52.618135][ T3623] ? __fget_light+0x20a/0x270 [ 52.622817][ T3623] __sys_sendmsg+0xf3/0x1c0 [ 52.627327][ T3623] ? __sys_sendmsg_sock+0x30/0x30 [ 52.632358][ T3623] ? lock_downgrade+0x6e0/0x6e0 [ 52.637219][ T3623] ? lockdep_hardirqs_on+0x79/0x100 [ 52.642420][ T3623] ? _raw_spin_unlock_irq+0x2a/0x40 [ 52.647713][ T3623] ? ptrace_notify+0xfa/0x140 [ 52.652393][ T3623] do_syscall_64+0x35/0xb0 [ 52.656817][ T3623] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 52.662714][ T3623] RIP: 0033:0x7f1fa7560bc9 [ 52.667127][ T3623] 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 [ 52.686738][ T3623] RSP: 002b:00007ffe9b647b08 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 52.695154][ T3623] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f1fa7560bc9 [ 52.703134][ T3623] RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000004 [ 52.711107][ T3623] RBP: 0000000000000000 R08: 000000000000000d R09: 000000000000000d [ 52.719088][ T3623] R10: 000000000000000d R11: 0000000000000246 R12: 00007ffe9b647b20 [ 52.727085][ T3623] R13: 00000000000f4240 R14: 000000000000cba5 R15: 00007ffe9b647b14 [ 52.735075][ T3623] [ 52.738090][ T3623] Modules linked in: [ 52.750157][ T3623] ---[ end trace 0000000000000000 ]--- [ 52.755803][ T3623] RIP: 0010:metadata_dst_free+0x1f/0x80 [ 52.761546][ T3623] Code: 5c 41 5d e9 83 6d 23 fa 0f 1f 00 55 48 89 fd 53 e8 76 6d 23 fa 48 8d 7d 78 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 04 3c 03 7e 3f 8b 5d 78 31 ff 89 de e8 09 6a [ 52.781567][ T3623] RSP: 0018:ffffc90003d3f5f8 EFLAGS: 00010206 [ 52.787714][ T3623] RAX: dffffc0000000000 RBX: ffff8880746d8000 RCX: 0000000000000000 [ 52.795797][ T3623] RDX: 000000000000000f RSI: ffffffff87589a9a RDI: 0000000000000078 [ 52.803831][ T3623] RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000001 [ 52.813404][ T3623] R10: 0000000000000001 R11: 0000000000000000 R12: ffffc90003d3f678 [ 52.821429][ T3623] R13: ffffffff84f434d0 R14: ffff8880746d85b0 R15: ffffc90003d3f678 [ 52.829546][ T3623] FS: 0000555556c37300(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 52.838521][ T3623] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.845197][ T3623] CR2: 00007f1fa7561f60 CR3: 0000000071279000 CR4: 00000000003506e0 [ 52.853379][ T3623] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 52.861389][ T3623] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 52.869404][ T3623] Kernel panic - not syncing: Fatal exception [ 52.875618][ T3623] Kernel Offset: disabled [ 52.879937][ T3623] Rebooting in 86400 seconds..