./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3581581109 <...> Warning: Permanently added '10.128.0.165' (ED25519) to the list of known hosts. execve("./syz-executor3581581109", ["./syz-executor3581581109"], 0x7ffcbeae6c10 /* 10 vars */) = 0 brk(NULL) = 0x5555775c0000 brk(0x5555775c0d00) = 0x5555775c0d00 arch_prctl(ARCH_SET_FS, 0x5555775c0380) = 0 set_tid_address(0x5555775c0650) = 5083 set_robust_list(0x5555775c0660, 24) = 0 rseq(0x5555775c0ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3581581109", 4096) = 28 getrandom("\x57\x93\xa5\x4d\xa8\xbe\x18\xe4", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555775c0d00 brk(0x5555775e1d00) = 0x5555775e1d00 brk(0x5555775e2000) = 0x5555775e2000 mprotect(0x7faeb63d7000, 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 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5084 attached [pid 5084] set_robust_list(0x5555775c0660, 24 [pid 5083] <... clone resumed>, child_tidptr=0x5555775c0650) = 5084 [pid 5084] <... set_robust_list resumed>) = 0 [pid 5084] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5084] setpgid(0, 0) = 0 [pid 5084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5084] write(3, "1000", 4) = 4 [pid 5084] close(3) = 0 [pid 5084] socket(AF_INET, SOCK_DGRAM, IPPROTO_UDPLITE) = 3 [pid 5084] ioctl(3, SIOCGIFINDEX, {ifr_name="lo", ifr_ifindex=1}) = 0 [pid 5084] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 4 [pid 5084] sendmsg(4, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\x48\x00\x00\x00\x24\x00\x0b\x0d\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x63\x62\x73\x00\x1c\x00\x02\x00\x18\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", iov_len=72}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 72 [pid 5084] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 5 [pid 5084] setsockopt(5, SOL_TCP, TCP_WINDOW_CLAMP, [191], 4) = 0 [pid 5084] bind(5, {sa_family=AF_INET6, sin6_port=htons(2), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28) = 0 [pid 5084] setsockopt(5, SOL_TCP, TCP_FASTOPEN_NO_COOKIE, [1], 4) = 0 [pid 5084] sendto(5, "\x04\x4a\xac\x2f\x20\x2c\x5f\xed\xa7\x1e\x03\x9a\x57\xa9\x30\x88\xfd\xcc\xe4\xaf\xe2\x8a\xac\x61\x83\x77\x92\x74\x1a\x19\x06\x70\xcc\xbe\x1a\x2b\x00\xaa\x77\xa8\x7d\x56\xa3\xf1\x2c\x79\x20\xad\x02\x92\x8a\x5d\x10\x14\xe5\xb8\x96\xf0\x00\xfc\xf6\x52\x19\x28\x48\x0b\xe9\xaf\x82\x61\x3a\x5c\x66\x1f\x41\x10\xad\xba\x35\x8a\xfd\x8b\x5b\x4e\xf1\x70\x20\x51\xe3\x93\xed\xe2\x69\x81\x12\xa1\xf1\xbd\xf1\xd0"..., 78489062045332818, MSG_OOB|MSG_DONTROUTE|MSG_DONTWAIT|MSG_CONFIRM|MSG_FASTOPEN, {sa_family=AF_INET6, sin6_port=htons(2), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::", &sin6_addr), sin6_scope_id=0}, 28) = 32768 [pid 5084] shutdown(5, SHUT_WR) = 0 [ 74.874228][ T5084] UDPLite: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list [ 75.274846][ T5084] divide error: 0000 [#1] PREEMPT SMP KASAN NOPTI [ 75.281310][ T5084] CPU: 1 PID: 5084 Comm: syz-executor358 Not tainted 6.9.0-rc6-syzkaller-00022-g98369dccd2f8 #0 [ 75.291731][ T5084] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 75.301771][ T5084] RIP: 0010:tcp_rcv_space_adjust+0x2df/0x890 [ 75.307782][ T5084] Code: e3 04 4c 01 eb 48 8b 44 24 38 0f b6 04 10 84 c0 49 89 d5 0f 85 a5 03 00 00 41 8b 8e c8 09 00 00 89 e8 29 c8 48 0f af c3 31 d2 <48> f7 f1 48 8d 1c 43 49 8d 96 76 08 00 00 48 89 d0 48 c1 e8 03 48 [ 75.327394][ T5084] RSP: 0018:ffffc900031ef3f0 EFLAGS: 00010246 [ 75.333454][ T5084] RAX: 0c677a10441f8f42 RBX: 000000004fb95e7e RCX: 0000000000000000 [ 75.341431][ T5084] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 75.349393][ T5084] RBP: 0000000027d4b11f R08: ffffffff89e535a4 R09: 1ffffffff25e6ab7 [ 75.357353][ T5084] R10: dffffc0000000000 R11: ffffffff8135e920 R12: ffff88802a9f8d30 [ 75.365328][ T5084] R13: dffffc0000000000 R14: ffff88802a9f8d00 R15: 1ffff1100553f2da [ 75.373288][ T5084] FS: 00005555775c0380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 75.382222][ T5084] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.388807][ T5084] CR2: 00007f1155bf2304 CR3: 000000002b9f2000 CR4: 0000000000350ef0 [ 75.396766][ T5084] Call Trace: [ 75.400038][ T5084] [ 75.402957][ T5084] ? __die_body+0x88/0xe0 [ 75.407278][ T5084] ? die+0xcf/0x110 [ 75.411074][ T5084] ? do_trap+0x15a/0x3a0 [ 75.415314][ T5084] ? tcp_rcv_space_adjust+0x2df/0x890 [ 75.420684][ T5084] ? do_error_trap+0x1dc/0x2c0 [ 75.425441][ T5084] ? tcp_rcv_space_adjust+0x2df/0x890 [ 75.430806][ T5084] ? __pfx_do_error_trap+0x10/0x10 [ 75.435938][ T5084] ? srso_alias_return_thunk+0x5/0xfbef5 [ 75.441567][ T5084] ? srso_alias_return_thunk+0x5/0xfbef5 [ 75.447196][ T5084] ? rcu_is_watching+0x15/0xb0 [ 75.451950][ T5084] ? exc_divide_error+0x39/0x50 [ 75.456795][ T5084] ? tcp_rcv_space_adjust+0x2df/0x890 [ 75.462155][ T5084] ? asm_exc_divide_error+0x1a/0x20 [ 75.467341][ T5084] ? __pfx_read_tsc+0x10/0x10 [ 75.472012][ T5084] ? tcp_rcv_space_adjust+0x284/0x890 [ 75.477374][ T5084] ? tcp_rcv_space_adjust+0x2df/0x890 [ 75.482740][ T5084] ? __tcp_send_ack+0x1fc/0x600 [ 75.487591][ T5084] tcp_recvmsg_locked+0x106d/0x25a0 [ 75.492826][ T5084] ? __pfx_tcp_recvmsg_locked+0x10/0x10 [ 75.498532][ T5084] ? tcp_recvmsg+0x23c/0x920 [ 75.503146][ T5084] ? srso_alias_return_thunk+0x5/0xfbef5 [ 75.508779][ T5084] tcp_recvmsg+0x25d/0x920 [ 75.513278][ T5084] ? __pfx___might_resched+0x10/0x10 [ 75.518585][ T5084] ? __pfx_tcp_recvmsg+0x10/0x10 [ 75.523538][ T5084] ? srso_alias_return_thunk+0x5/0xfbef5 [ 75.529172][ T5084] ? aa_sk_perm+0x967/0xab0 [ 75.533674][ T5084] ? __pfx_tcp_recvmsg+0x10/0x10 [ 75.538632][ T5084] inet6_recvmsg+0x16a/0x730 [ 75.543220][ T5084] ? __pfx_inet6_recvmsg+0x10/0x10 [ 75.548332][ T5084] ? aa_sock_msg_perm+0x91/0x160 [ 75.553256][ T5084] ? srso_alias_return_thunk+0x5/0xfbef5 [ 75.558969][ T5084] ? security_socket_recvmsg+0x90/0xb0 [ 75.564425][ T5084] sock_recvmsg+0x109/0x280 [ 75.568939][ T5084] ____sys_recvmsg+0x1db/0x470 [ 75.573695][ T5084] ? __pfx_____sys_recvmsg+0x10/0x10 [ 75.578974][ T5084] ? srso_alias_return_thunk+0x5/0xfbef5 [ 75.584615][ T5084] do_recvmmsg+0x474/0xae0 [ 75.589032][ T5084] ? __pfx_do_recvmmsg+0x10/0x10 [ 75.593961][ T5084] ? srso_alias_return_thunk+0x5/0xfbef5 [ 75.599597][ T5084] ? srso_alias_return_thunk+0x5/0xfbef5 [ 75.605231][ T5084] ? do_raw_spin_lock+0x14f/0x370 [ 75.610271][ T5084] ? srso_alias_return_thunk+0x5/0xfbef5 [ 75.615988][ T5084] ? srso_alias_return_thunk+0x5/0xfbef5 [ 75.621623][ T5084] ? srso_alias_return_thunk+0x5/0xfbef5 [ 75.627259][ T5084] ? srso_alias_return_thunk+0x5/0xfbef5 [ 75.632899][ T5084] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 75.638874][ T5084] ? lockdep_hardirqs_on+0x99/0x150 [ 75.644155][ T5084] ? srso_alias_return_thunk+0x5/0xfbef5 [ 75.649797][ T5084] ? _raw_spin_unlock_irq+0x2e/0x50 [ 75.654987][ T5084] ? srso_alias_return_thunk+0x5/0xfbef5 [ 75.660614][ T5084] ? ptrace_notify+0x279/0x380 [ 75.665370][ T5084] __x64_sys_recvmmsg+0x199/0x250 [ 75.670388][ T5084] ? __pfx___x64_sys_recvmmsg+0x10/0x10 [ 75.675943][ T5084] ? do_syscall_64+0x102/0x240 [ 75.680704][ T5084] ? srso_alias_return_thunk+0x5/0xfbef5 [ 75.686419][ T5084] do_syscall_64+0xf5/0x240 [ 75.690923][ T5084] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.696810][ T5084] RIP: 0033:0x7faeb6363db9 [ 75.701210][ T5084] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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 [ 75.720819][ T5084] RSP: 002b:00007ffcc1997168 EFLAGS: 00000246 ORIG_RAX: 000000000000012b [ 75.729221][ T5084] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007faeb6363db9 [ 75.737177][ T5084] RDX: 0000000000000001 RSI: 0000000020000bc0 RDI: 0000000000000005 [ 75.745133][ T5084] RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000001c [ 75.753090][ T5084] R10: 0000000000000122 R11: 0000000000000246 R12: 0000000000000000 [ 75.761133][ T5084] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001 [ 75.769184][ T5084] [ 75.772185][ T5084] Modules linked in: [ 75.780872][ T5084] ---[ end trace 0000000000000000 ]--- [ 75.786513][ T5084] RIP: 0010:tcp_rcv_space_adjust+0x2df/0x890 [ 75.792499][ T5084] Code: e3 04 4c 01 eb 48 8b 44 24 38 0f b6 04 10 84 c0 49 89 d5 0f 85 a5 03 00 00 41 8b 8e c8 09 00 00 89 e8 29 c8 48 0f af c3 31 d2 <48> f7 f1 48 8d 1c 43 49 8d 96 76 08 00 00 48 89 d0 48 c1 e8 03 48 [ 75.812225][ T5084] RSP: 0018:ffffc900031ef3f0 EFLAGS: 00010246 [ 75.818413][ T5084] RAX: 0c677a10441f8f42 RBX: 000000004fb95e7e RCX: 0000000000000000 [ 75.826499][ T5084] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 75.834509][ T5084] RBP: 0000000027d4b11f R08: ffffffff89e535a4 R09: 1ffffffff25e6ab7 [ 75.842486][ T5084] R10: dffffc0000000000 R11: ffffffff8135e920 R12: ffff88802a9f8d30 [ 75.850493][ T5084] R13: dffffc0000000000 R14: ffff88802a9f8d00 R15: 1ffff1100553f2da [ 75.858496][ T5084] FS: 00005555775c0380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 75.867481][ T5084] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.874096][ T5084] CR2: 0000000020008000 CR3: 000000002b9f2000 CR4: 0000000000350ef0 [ 75.882065][ T5084] Kernel panic - not syncing: Fatal exception [ 75.888335][ T5084] Kernel Offset: disabled [ 75.892650][ T5084] Rebooting in 86400 seconds..