./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor824378549 <...> Warning: Permanently added '10.128.0.191' (ED25519) to the list of known hosts. execve("./syz-executor824378549", ["./syz-executor824378549"], 0x7ffeaeab7f40 /* 10 vars */) = 0 brk(NULL) = 0x5555618f1000 brk(0x5555618f1d00) = 0x5555618f1d00 arch_prctl(ARCH_SET_FS, 0x5555618f1380) = 0 set_tid_address(0x5555618f1650) = 5228 set_robust_list(0x5555618f1660, 24) = 0 rseq(0x5555618f1ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor824378549", 4096) = 27 getrandom("\x19\x00\xb1\x73\xd5\xdb\x8b\x13", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555618f1d00 brk(0x555561912d00) = 0x555561912d00 brk(0x555561913000) = 0x555561913000 mprotect(0x7fa2710bd000, 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=0x5555618f1650) = 5229 ./strace-static-x86_64: Process 5229 attached [pid 5229] set_robust_list(0x5555618f1660, 24) = 0 [pid 5229] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5229] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5229] setsid() = 1 [pid 5229] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5229] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5229] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5229] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5229] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5229] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5229] unshare(CLONE_NEWNS) = 0 [pid 5229] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5229] unshare(CLONE_NEWIPC) = 0 [pid 5229] unshare(CLONE_NEWCGROUP) = 0 [pid 5229] unshare(CLONE_NEWUTS) = 0 [pid 5229] unshare(CLONE_SYSVSEM) = 0 [pid 5229] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5229] write(3, "16777216", 8) = 8 [pid 5229] close(3) = 0 [pid 5229] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5229] write(3, "536870912", 9) = 9 [pid 5229] close(3) = 0 [pid 5229] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5229] write(3, "1024", 4) = 4 [pid 5229] close(3) = 0 [pid 5229] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5229] write(3, "8192", 4) = 4 [pid 5229] close(3) = 0 [pid 5229] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5229] write(3, "1024", 4) = 4 [pid 5229] close(3) = 0 [pid 5229] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5229] write(3, "1024", 4) = 4 [pid 5229] close(3) = 0 [pid 5229] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5229] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5229] close(3) = 0 [pid 5229] getpid() = 1 [pid 5229] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 5239] set_robust_list(0x5555618f1660, 24 [pid 5229] <... clone resumed>, child_tidptr=0x5555618f1650) = 2 [pid 5239] <... set_robust_list resumed>) = 0 [pid 5239] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5239] setpgid(0, 0) = 0 [pid 5239] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5239] write(3, "1000", 4) = 4 [pid 5239] close(3) = 0 executing program [pid 5239] write(1, "executing program\n", 18) = 18 [pid 5239] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 5239] socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC) = 4 [pid 5239] socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC) = 5 [pid 5239] sendto(5, [{nlmsg_len=32, nlmsg_type=0x10 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}, "\x03\x00\x00\x00\x0c\x00\x02\x00\x65\x74\x68\x74\x6f\x6f\x6c\x00"], 32, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12) = 32 [pid 5239] recvfrom(5, [{nlmsg_len=996, nlmsg_type=0x10 /* NLMSG_??? */, nlmsg_flags=0, nlmsg_seq=0, nlmsg_pid=2}, "\x01\x02\x00\x00\x0c\x00\x02\x00\x65\x74\x68\x74\x6f\x6f\x6c\x00\x06\x00\x01\x00\x16\x00\x00\x00\x08\x00\x03\x00\x01\x00\x00\x00\x08\x00\x04\x00\x00\x00\x00\x00\x08\x00\x05\x00\x00\x00\x00\x00\x88\x03\x06\x00\x14\x00\x01\x00\x08\x00\x01\x00\x01\x00\x00\x00\x08\x00\x02\x00\x0e\x00\x00\x00\x14\x00\x02\x00\x08\x00\x01\x00\x02\x00\x00\x00\x08\x00\x02\x00\x0e\x00\x00\x00\x14\x00\x03\x00\x08\x00\x01\x00"...], 4096, 0, NULL, NULL) = 996 [pid 5239] recvfrom(5, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=2}, {error=0, msg={nlmsg_len=32, nlmsg_type=0x10 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 [pid 5239] close(5) = 0 [pid 5239] ioctl(3, SIOCGIFINDEX, {ifr_name="batadv_slave_1", ifr_ifindex=42}) = 0 [ 67.170602][ T5239] Oops: general protection fault, probably for non-canonical address 0xdffffc00000000f8: 0000 [#1] PREEMPT SMP KASAN PTI [ 67.183656][ T5239] KASAN: null-ptr-deref in range [0x00000000000007c0-0x00000000000007c7] [ 67.192076][ T5239] CPU: 0 UID: 0 PID: 5239 Comm: syz-executor824 Not tainted 6.11.0-rc4-syzkaller-00565-gf9db28bb09f4 #0 [ 67.203256][ T5239] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 [ 67.213383][ T5239] RIP: 0010:phy_start_cable_test_tdr+0x3a/0x5c0 [ 67.219652][ T5239] Code: ec 38 48 89 54 24 18 49 89 f6 48 89 fb 49 bd 00 00 00 00 00 fc ff df e8 e4 24 2b fb 48 8d bb c0 07 00 00 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 74 05 e8 9a 66 92 fb 48 8b 83 c0 07 00 00 48 89 44 [ 67.239436][ T5239] RSP: 0018:ffffc9000330f230 EFLAGS: 00010202 [ 67.245523][ T5239] RAX: 00000000000000f8 RBX: 0000000000000000 RCX: ffff888020105a00 [ 67.253481][ T5239] RDX: 0000000000000000 RSI: ffffc9000330f740 RDI: 00000000000007c0 [ 67.261439][ T5239] RBP: ffffc9000330f470 R08: ffffffff89cb116d R09: 1ffff110048d9015 [ 67.269391][ T5239] R10: dffffc0000000000 R11: ffffffff86686630 R12: ffffc9000330f3f0 [ 67.277345][ T5239] R13: dffffc0000000000 R14: ffffc9000330f740 R15: 0000000000000000 [ 67.285300][ T5239] FS: 00005555618f1380(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000 [ 67.294220][ T5239] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.300791][ T5239] CR2: 00000000200004c0 CR3: 00000000723a6000 CR4: 00000000003506f0 [ 67.308746][ T5239] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 67.316811][ T5239] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 67.324767][ T5239] Call Trace: [ 67.328029][ T5239] [ 67.330942][ T5239] ? __die_body+0x88/0xe0 [ 67.335260][ T5239] ? die_addr+0x108/0x140 [ 67.339576][ T5239] ? exc_general_protection+0x3dd/0x5d0 [ 67.345126][ T5239] ? asm_exc_general_protection+0x26/0x30 [ 67.350853][ T5239] ? __pfx_phy_start_cable_test_tdr+0x10/0x10 [ 67.356903][ T5239] ? ethnl_act_cable_test_tdr+0x5ad/0x10d0 [ 67.362782][ T5239] ? phy_start_cable_test_tdr+0x3a/0x5c0 [ 67.368411][ T5239] ? ethnl_ops_begin+0x1ae/0x1f0 [ 67.373332][ T5239] ? __pfx_phy_start_cable_test_tdr+0x10/0x10 [ 67.379379][ T5239] ethnl_act_cable_test_tdr+0x607/0x10d0 [ 67.385005][ T5239] ? __pfx_ethnl_act_cable_test_tdr+0x10/0x10 [ 67.391161][ T5239] ? genl_family_rcv_msg_attrs_parse+0xa3/0x290 [ 67.397391][ T5239] ? __nla_parse+0x40/0x60 [ 67.401791][ T5239] ? genl_family_rcv_msg_attrs_parse+0x1d1/0x290 [ 67.408111][ T5239] genl_rcv_msg+0xb14/0xec0 [ 67.412687][ T5239] ? mark_lock+0x9a/0x350 [ 67.417029][ T5239] ? __pfx_genl_rcv_msg+0x10/0x10 [ 67.422051][ T5239] ? __pfx_lock_acquire+0x10/0x10 [ 67.427080][ T5239] ? __pfx_ethnl_act_cable_test_tdr+0x10/0x10 [ 67.433134][ T5239] ? __pfx___might_resched+0x10/0x10 [ 67.438406][ T5239] netlink_rcv_skb+0x1e3/0x430 [ 67.443155][ T5239] ? __pfx_genl_rcv_msg+0x10/0x10 [ 67.448192][ T5239] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 67.453501][ T5239] ? __netlink_deliver_tap+0x77e/0x7c0 [ 67.458960][ T5239] genl_rcv+0x28/0x40 [ 67.462968][ T5239] netlink_unicast+0x7f6/0x990 [ 67.467739][ T5239] ? __pfx_netlink_unicast+0x10/0x10 [ 67.473009][ T5239] ? __virt_addr_valid+0x183/0x530 [ 67.478104][ T5239] ? __check_object_size+0x49c/0x900 [ 67.483370][ T5239] ? bpf_lsm_netlink_send+0x9/0x10 [ 67.488465][ T5239] netlink_sendmsg+0x8e4/0xcb0 [ 67.493215][ T5239] ? __pfx_netlink_sendmsg+0x10/0x10 [ 67.498484][ T5239] ? __import_iovec+0x536/0x820 [ 67.503317][ T5239] ? aa_sock_msg_perm+0x91/0x160 [ 67.508259][ T5239] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 67.513524][ T5239] ? security_socket_sendmsg+0x87/0xb0 [ 67.518969][ T5239] ? __pfx_netlink_sendmsg+0x10/0x10 [ 67.524233][ T5239] __sock_sendmsg+0x221/0x270 [ 67.528893][ T5239] ____sys_sendmsg+0x525/0x7d0 [ 67.533643][ T5239] ? __pfx_____sys_sendmsg+0x10/0x10 [ 67.538912][ T5239] ? do_raw_spin_lock+0x14f/0x370 [ 67.543921][ T5239] __sys_sendmsg+0x2b0/0x3a0 [ 67.548496][ T5239] ? __pfx___sys_sendmsg+0x10/0x10 [ 67.553590][ T5239] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 67.559918][ T5239] ? _raw_spin_unlock_irq+0x2e/0x50 [ 67.565101][ T5239] ? ptrace_notify+0x279/0x380 [ 67.569851][ T5239] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 67.576181][ T5239] ? do_syscall_64+0x100/0x230 [ 67.580931][ T5239] do_syscall_64+0xf3/0x230 [ 67.585422][ T5239] ? clear_bhb_loop+0x35/0x90 [ 67.590088][ T5239] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 67.595996][ T5239] RIP: 0033:0x7fa271044fc9 [ 67.600426][ T5239] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 01 1a 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 [ 67.620029][ T5239] RSP: 002b:00007ffd09ea0848 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 67.628429][ T5239] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fa271044fc9 [ 67.636388][ T5239] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000004 [ 67.644344][ T5239] RBP: 00000000000f4240 R08: 0000000000000001 R09: 0000000000000001 [ 67.652315][ T5239] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd09ea08a0 [ 67.660355][ T5239] R13: 00007fa271092406 R14: 0000000000000003 R15: 00007ffd09ea0880 [ 67.668314][ T5239] [ 67.671400][ T5239] Modules linked in: [ 67.679247][ T5239] ---[ end trace 0000000000000000 ]--- [ 67.684758][ T5239] RIP: 0010:phy_start_cable_test_tdr+0x3a/0x5c0 [ 67.691004][ T5239] Code: ec 38 48 89 54 24 18 49 89 f6 48 89 fb 49 bd 00 00 00 00 00 fc ff df e8 e4 24 2b fb 48 8d bb c0 07 00 00 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 74 05 e8 9a 66 92 fb 48 8b 83 c0 07 00 00 48 89 44 [ 67.711001][ T5239] RSP: 0018:ffffc9000330f230 EFLAGS: 00010202 [ 67.717190][ T5239] RAX: 00000000000000f8 RBX: 0000000000000000 RCX: ffff888020105a00 [ 67.725460][ T5239] RDX: 0000000000000000 RSI: ffffc9000330f740 RDI: 00000000000007c0 [ 67.733518][ T5239] RBP: ffffc9000330f470 R08: ffffffff89cb116d R09: 1ffff110048d9015 [ 67.741511][ T5239] R10: dffffc0000000000 R11: ffffffff86686630 R12: ffffc9000330f3f0 [ 67.749520][ T5239] R13: dffffc0000000000 R14: ffffc9000330f740 R15: 0000000000000000 [ 67.757535][ T5239] FS: 00005555618f1380(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000 [ 67.766577][ T5239] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.773525][ T5239] CR2: 00000000200004c0 CR3: 00000000723a6000 CR4: 00000000003506f0 [ 67.781575][ T5239] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 67.790287][ T5239] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 67.798584][ T5239] Kernel panic - not syncing: Fatal exception [ 67.805065][ T5239] Kernel Offset: disabled [ 67.809398][ T5239] Rebooting in 86400 seconds..