./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor337114196 <...> Warning: Permanently added '10.128.1.197' (ED25519) to the list of known hosts. execve("./syz-executor337114196", ["./syz-executor337114196"], 0x7ffe75b91870 /* 10 vars */) = 0 brk(NULL) = 0x55558b025000 brk(0x55558b025d00) = 0x55558b025d00 arch_prctl(ARCH_SET_FS, 0x55558b025380) = 0 set_tid_address(0x55558b025650) = 5224 set_robust_list(0x55558b025660, 24) = 0 rseq(0x55558b025ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor337114196", 4096) = 27 getrandom("\x76\x62\x40\xf2\x4f\x9e\xd4\x68", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55558b025d00 brk(0x55558b046d00) = 0x55558b046d00 brk(0x55558b047000) = 0x55558b047000 mprotect(0x7ff31843b000, 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 5225 attached , child_tidptr=0x55558b025650) = 5225 [pid 5225] set_robust_list(0x55558b025660, 24) = 0 [pid 5225] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5225] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5225] setsid() = 1 [pid 5225] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5225] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5225] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5225] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5225] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5225] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5225] unshare(CLONE_NEWNS) = 0 [pid 5225] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5225] unshare(CLONE_NEWIPC) = 0 [pid 5225] unshare(CLONE_NEWCGROUP) = 0 [pid 5225] unshare(CLONE_NEWUTS) = 0 [pid 5225] unshare(CLONE_SYSVSEM) = 0 [pid 5225] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5225] write(3, "16777216", 8) = 8 [pid 5225] close(3) = 0 [pid 5225] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5225] write(3, "536870912", 9) = 9 [pid 5225] close(3) = 0 [pid 5225] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5225] write(3, "1024", 4) = 4 [pid 5225] close(3) = 0 [pid 5225] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5225] write(3, "8192", 4) = 4 [pid 5225] close(3) = 0 [pid 5225] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5225] write(3, "1024", 4) = 4 [pid 5225] close(3) = 0 [pid 5225] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5225] write(3, "1024", 4) = 4 [pid 5225] close(3) = 0 [pid 5225] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5225] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5225] close(3) = 0 [pid 5225] getpid() = 1 [pid 5225] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 5234] set_robust_list(0x55558b025660, 24 [pid 5225] <... clone resumed>, child_tidptr=0x55558b025650) = 2 [pid 5234] <... set_robust_list resumed>) = 0 [pid 5234] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5234] setpgid(0, 0) = 0 [pid 5234] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5234] write(3, "1000", 4) = 4 [pid 5234] close(3) = 0 [pid 5234] write(1, "executing program\n", 18executing program ) = 18 [pid 5234] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 3 [pid 5234] socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC) = 4 [pid 5234] socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC) = 5 [pid 5234] 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 5234] 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 5234] 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 5234] close(5) = 0 [pid 5234] ioctl(3, SIOCGIFINDEX, {ifr_name="batadv_slave_1", ifr_ifindex=42}) = 0 [ 63.574444][ T5234] Oops: general protection fault, probably for non-canonical address 0xdffffc00000000f8: 0000 [#1] PREEMPT SMP KASAN PTI [ 63.587092][ T5234] KASAN: null-ptr-deref in range [0x00000000000007c0-0x00000000000007c7] [ 63.595531][ T5234] CPU: 0 UID: 0 PID: 5234 Comm: syz-executor337 Not tainted 6.11.0-rc4-syzkaller-00565-gf9db28bb09f4 #0 [ 63.606619][ T5234] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 [ 63.616656][ T5234] RIP: 0010:phy_start_cable_test_tdr+0x3a/0x5c0 [ 63.622909][ T5234] 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 [ 63.642510][ T5234] RSP: 0018:ffffc90002d6f230 EFLAGS: 00010202 [ 63.648568][ T5234] RAX: 00000000000000f8 RBX: 0000000000000000 RCX: ffff888026a49e00 [ 63.656528][ T5234] RDX: 0000000000000000 RSI: ffffc90002d6f740 RDI: 00000000000007c0 [ 63.664485][ T5234] RBP: ffffc90002d6f470 R08: ffffffff89cb116d R09: 1ffff11004b78015 [ 63.672529][ T5234] R10: dffffc0000000000 R11: ffffffff86686630 R12: ffffc90002d6f3f0 [ 63.680488][ T5234] R13: dffffc0000000000 R14: ffffc90002d6f740 R15: 0000000000000000 [ 63.688448][ T5234] FS: 000055558b025380(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000 [ 63.697372][ T5234] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 63.704060][ T5234] CR2: 00007ffc537dbee8 CR3: 000000002c2bc000 CR4: 00000000003506f0 [ 63.712020][ T5234] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 63.719994][ T5234] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 63.727968][ T5234] Call Trace: [ 63.731242][ T5234] [ 63.734165][ T5234] ? __die_body+0x88/0xe0 [ 63.738494][ T5234] ? die_addr+0x108/0x140 [ 63.742818][ T5234] ? exc_general_protection+0x3dd/0x5d0 [ 63.748384][ T5234] ? netdev_get_by_index+0x7a/0xb0 [ 63.753506][ T5234] ? asm_exc_general_protection+0x26/0x30 [ 63.759228][ T5234] ? __pfx_phy_start_cable_test_tdr+0x10/0x10 [ 63.765287][ T5234] ? ethnl_act_cable_test_tdr+0x5ad/0x10d0 [ 63.771089][ T5234] ? phy_start_cable_test_tdr+0x3a/0x5c0 [ 63.776723][ T5234] ? ethnl_ops_begin+0x1ae/0x1f0 [ 63.781663][ T5234] ? __pfx_phy_start_cable_test_tdr+0x10/0x10 [ 63.787729][ T5234] ethnl_act_cable_test_tdr+0x607/0x10d0 [ 63.793365][ T5234] ? __pfx_ethnl_act_cable_test_tdr+0x10/0x10 [ 63.799434][ T5234] ? genl_family_rcv_msg_attrs_parse+0xa3/0x290 [ 63.805671][ T5234] ? __nla_parse+0x40/0x60 [ 63.810082][ T5234] ? genl_family_rcv_msg_attrs_parse+0x1d1/0x290 [ 63.816405][ T5234] genl_rcv_msg+0xb14/0xec0 [ 63.820901][ T5234] ? mark_lock+0x9a/0x350 [ 63.825236][ T5234] ? __pfx_genl_rcv_msg+0x10/0x10 [ 63.830258][ T5234] ? __pfx_lock_acquire+0x10/0x10 [ 63.835272][ T5234] ? __pfx_ethnl_act_cable_test_tdr+0x10/0x10 [ 63.841335][ T5234] ? __pfx___might_resched+0x10/0x10 [ 63.846612][ T5234] netlink_rcv_skb+0x1e3/0x430 [ 63.851366][ T5234] ? __pfx_genl_rcv_msg+0x10/0x10 [ 63.856378][ T5234] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 63.861652][ T5234] ? __netlink_deliver_tap+0x77e/0x7c0 [ 63.867105][ T5234] genl_rcv+0x28/0x40 [ 63.871075][ T5234] netlink_unicast+0x7f6/0x990 [ 63.875832][ T5234] ? __pfx_netlink_unicast+0x10/0x10 [ 63.881106][ T5234] ? __virt_addr_valid+0x183/0x530 [ 63.886205][ T5234] ? __check_object_size+0x49c/0x900 [ 63.891474][ T5234] ? bpf_lsm_netlink_send+0x9/0x10 [ 63.896573][ T5234] netlink_sendmsg+0x8e4/0xcb0 [ 63.901327][ T5234] ? __pfx_netlink_sendmsg+0x10/0x10 [ 63.906597][ T5234] ? __import_iovec+0x536/0x820 [ 63.911436][ T5234] ? aa_sock_msg_perm+0x91/0x160 [ 63.916360][ T5234] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 63.921632][ T5234] ? security_socket_sendmsg+0x87/0xb0 [ 63.927083][ T5234] ? __pfx_netlink_sendmsg+0x10/0x10 [ 63.932352][ T5234] __sock_sendmsg+0x221/0x270 [ 63.937017][ T5234] ____sys_sendmsg+0x525/0x7d0 [ 63.941772][ T5234] ? __pfx_____sys_sendmsg+0x10/0x10 [ 63.947044][ T5234] ? do_raw_spin_lock+0x14f/0x370 [ 63.952061][ T5234] __sys_sendmsg+0x2b0/0x3a0 [ 63.956660][ T5234] ? __pfx___sys_sendmsg+0x10/0x10 [ 63.961776][ T5234] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 63.968105][ T5234] ? _raw_spin_unlock_irq+0x2e/0x50 [ 63.973301][ T5234] ? ptrace_notify+0x279/0x380 [ 63.978063][ T5234] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 63.984385][ T5234] ? do_syscall_64+0x100/0x230 [ 63.989151][ T5234] do_syscall_64+0xf3/0x230 [ 63.993651][ T5234] ? clear_bhb_loop+0x35/0x90 [ 63.998321][ T5234] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 64.004207][ T5234] RIP: 0033:0x7ff3183c2f89 [ 64.008624][ T5234] 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 [ 64.028221][ T5234] RSP: 002b:00007ffc537dcf58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 64.036623][ T5234] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007ff3183c2f89 [ 64.044604][ T5234] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000004 [ 64.052562][ T5234] RBP: 00000000000f4240 R08: 0000000000000001 R09: 0000000000000001 [ 64.060517][ T5234] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc537dcfb0 [ 64.068473][ T5234] R13: 00007ff318410406 R14: 0000000000000003 R15: 00007ffc537dcf90 [ 64.076438][ T5234] [ 64.079537][ T5234] Modules linked in: [ 64.087676][ T5234] ---[ end trace 0000000000000000 ]--- [ 64.093154][ T5234] RIP: 0010:phy_start_cable_test_tdr+0x3a/0x5c0 [ 64.100490][ T5234] 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 [ 64.120197][ T5234] RSP: 0018:ffffc90002d6f230 EFLAGS: 00010202 [ 64.126469][ T5234] RAX: 00000000000000f8 RBX: 0000000000000000 RCX: ffff888026a49e00 [ 64.134451][ T5234] RDX: 0000000000000000 RSI: ffffc90002d6f740 RDI: 00000000000007c0 [ 64.142778][ T5234] RBP: ffffc90002d6f470 R08: ffffffff89cb116d R09: 1ffff11004b78015 [ 64.150774][ T5234] R10: dffffc0000000000 R11: ffffffff86686630 R12: ffffc90002d6f3f0 [ 64.158763][ T5234] R13: dffffc0000000000 R14: ffffc90002d6f740 R15: 0000000000000000 [ 64.166821][ T5234] FS: 000055558b025380(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000 [ 64.175787][ T5234] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 64.182369][ T5234] CR2: 00007ffc537dbee8 CR3: 000000002c2bc000 CR4: 00000000003506f0 [ 64.190365][ T5234] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 64.198807][ T5234] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 64.206831][ T5234] Kernel panic - not syncing: Fatal exception [ 64.213100][ T5234] Kernel Offset: disabled [ 64.217409][ T5234] Rebooting in 86400 seconds..