ci-upstream-net-this-kasan-gce/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci-upstream-net-this-kasan-gce/syz-executor1761631824 <...> Warning: Permanently added '10.128.1.155' (ED25519) to the list of known hosts. execve("ci-upstream-net-this-kasan-gce/syz-executor1761631824", ["ci-upstream-net-this-kasan-gce/syz-executor1761631824"], 0x7ffd7e45f390 /* 10 vars */) = 0 brk(NULL) = 0x55559101b000 brk(0x55559101bd80) = 0x55559101bd80 arch_prctl(ARCH_SET_FS, 0x55559101b400) = 0 set_tid_address(0x55559101b6d0) = 5628 set_robust_list(0x55559101b6e0, 24) = 0 rseq({cpu_id_start=0, cpu_id=RSEQ_CPU_ID_UNINITIALIZED, rseq_cs=NULL, flags=0, node_id=0, mm_cid=0, slice_ctrl={request=0, granted=0, __reserved=0}, __reserved=0}, 33, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlinkat(AT_FDCWD, "/proc/self/exe", "/root/ci-upstream-net-this-kasan-gce/syz-executor1761631824", 4096) = 59 getrandom("\xcf\x68\x07\x51\x55\x3c\x43\xc2", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55559101bd80 brk(0x55559103cd80) = 0x55559103cd80 brk(0x55559103d000) = 0x55559103d000 mprotect(0x7f173139f000, 20480, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 write(1, "executing program\n", 18) = 18 executing program socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL)) = 3 bind(3, {sa_family=AF_PACKET, sll_protocol=htons(ETH_P_MOBITEX), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_ETHER, sll_pkttype=0xff /* PACKET_??? */, sll_halen=6, sll_addr=[00, 0x11, 0x4, 00, 00, 00]}, 20) = 0 setsockopt(3, SOL_PACKET, PACKET_TX_RING, {tp_block_size=4096, tp_block_nr=4, tp_frame_size=2048, tp_frame_nr=8}, 16) = 0 mmap(0x200000000000, 16384, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED, 3, 0) = 0x200000000000 readv(-1, [{iov_base=0x2000000000c0, iov_len=4294966767}], 1) = -1 EBADF (Bad file descriptor) syzkaller login: [ 87.907 ** replaying previous printk message ** [ 87.907783][ T5628] ------------[ cut here ]------------ [ 87.907851][ T5628] kernel BUG at net/socket.c:803! [ 87.907967][ T5628] Oops: invalid opcode: 0000 [#1] SMP KASAN PTI [ 87.929548][ T5628] CPU: 0 UID: 0 PID: 5628 Comm: syz-executor176 Not tainted syzkaller #0 PREEMPT(full) [ 87.939287][ T5628] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 87.949352][ T5628] RIP: 0010:sock_sendmsg_nosec+0x145/0x180 [ 87.955210][ T5628] Code: 06 67 48 0f b9 3a eb 95 e8 e8 3a 22 f8 48 89 df 4c 89 f6 4c 89 e2 4d 89 fb 2e e8 32 a5 5c 16 e9 51 ff ff ff e8 cc 3a 22 f8 90 <0f> 0b e8 c4 3a 22 f8 48 83 c3 18 48 89 d8 48 c1 e8 03 42 80 3c 28 [ 87.974913][ T5628] RSP: 0018:ffffc90003aefb48 EFLAGS: 00010293 [ 87.981078][ T5628] RAX: ffffffff89a578d4 RBX: ffff8880764c67c0 RCX: ffff88807fb23e80 [ 87.989069][ T5628] RDX: 0000000000000000 RSI: 00000000fffffdef RDI: 00000000fffffdef [ 87.997053][ T5628] RBP: 00000000fffffdef R08: ffffc90003aef747 R09: 1ffff9200075dee8 [ 88.005037][ T5628] R10: dffffc0000000000 R11: fffff5200075dee9 R12: 0000000000000001 [ 88.013107][ T5628] R13: dffffc0000000000 R14: ffffc90003aefbc0 R15: ffffffff8aac4310 [ 88.021086][ T5628] FS: 000055559101b400(0000) GS:ffff888124ce0000(0000) knlGS:0000000000000000 [ 88.030034][ T5628] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 88.036624][ T5628] CR2: 0000200000000210 CR3: 0000000073dca000 CR4: 00000000003526f0 [ 88.044775][ T5628] Call Trace: [ 88.048084][ T5628] [ 88.051026][ T5628] sock_write_iter+0x2de/0x3e0 [ 88.055821][ T5628] ? __pfx_sock_write_iter+0x10/0x10 [ 88.061160][ T5628] ? bpf_lsm_file_permission+0x9/0x20 [ 88.066644][ T5628] ? security_file_permission+0x75/0x260 [ 88.072305][ T5628] vfs_write+0x612/0xba0 [ 88.076563][ T5628] ? __pfx_vfs_write+0x10/0x10 [ 88.081340][ T5628] ? _raw_spin_unlock_irq+0x23/0x50 [ 88.086559][ T5628] ksys_write+0x150/0x270 [ 88.090900][ T5628] ? __pfx_ksys_write+0x10/0x10 [ 88.095778][ T5628] do_syscall_64+0x166/0x520 [ 88.100394][ T5628] ? trace_irq_disable+0x3b/0x140 [ 88.105433][ T5628] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 88.111605][ T5628] ? clear_bhb_loop+0x70/0xc0 [ 88.116288][ T5628] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 88.122205][ T5628] RIP: 0033:0x7f173130ecb9 [ 88.126634][ T5628] Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 00 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 d8 ff ff ff f7 d8 64 89 01 48 [ 88.146346][ T5628] RSP: 002b:00007ffd67e44248 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 88.154800][ T5628] RAX: ffffffffffffffda RBX: 0000200000000000 RCX: 00007f173130ecb9 [ 88.162877][ T5628] RDX: 0000000000000001 RSI: 0000200000000000 RDI: 0000000000000003 [ 88.170956][ T5628] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 [ 88.179127][ T5628] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd67e44388 [ 88.187118][ T5628] R13: 0000000000000002 R14: 00002000000000c0 R15: 0000000000000002 [ 88.195131][ T5628] [ 88.198161][ T5628] Modules linked in: [ 88.202395][ T5628] ---[ end trace 0000000000000000 ]--- [ 88.210374][ T5628] RIP: 0010:sock_sendmsg_nosec+0x145/0x180 [ 88.216419][ T5628] Code: 06 67 48 0f b9 3a eb 95 e8 e8 3a 22 f8 48 89 df 4c 89 f6 4c 89 e2 4d 89 fb 2e e8 32 a5 5c 16 e9 51 ff ff ff e8 cc 3a 22 f8 90 <0f> 0b e8 c4 3a 22 f8 48 83 c3 18 48 89 d8 48 c1 e8 03 42 80 3c 28 [ 88.236229][ T5628] RSP: 0018:ffffc90003aefb48 EFLAGS: 00010293 [ 88.236260][ T5628] RAX: ffffffff89a578d4 RBX: ffff8880764c67c0 RCX: ffff88807fb23e80 [ 88.236278][ T5628] RDX: 0000000000000000 RSI: 00000000fffffdef RDI: 00000000fffffdef [ 88.236292][ T5628] RBP: 00000000fffffdef R08: ffffc90003aef747 R09: 1ffff9200075dee8 [ 88.236307][ T5628] R10: dffffc0000000000 R11: fffff5200075dee9 R12: 0000000000000001 [ 88.236322][ T5628] R13: dffffc0000000000 R14: ffffc90003aefbc0 R15: ffffffff8aac4310 [ 88.236338][ T5628] FS: 000055559101b400(0000) GS:ffff888124de0000(0000) knlGS:0000000000000000 [ 88.236356][ T5628] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 88.236370][ T5628] CR2: 00000000006a9ee0 CR3: 0000000073dca000 CR4: 00000000003526f0 [ 88.236390][ T5628] Kernel panic - not syncing: Fatal exception [ 88.312126][ T5628] Kernel Offset: disabled [ 88.316459][ T5628] Rebooting in 86400 seconds..