./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor681041263 <...> Warning: Permanently added '10.128.1.98' (ED25519) to the list of known hosts. execve("./syz-executor681041263", ["./syz-executor681041263"], 0x7fff69fcf9f0 /* 10 vars */) = 0 brk(NULL) = 0x55556a17a000 brk(0x55556a17ad00) = 0x55556a17ad00 arch_prctl(ARCH_SET_FS, 0x55556a17a380) = 0 set_tid_address(0x55556a17a650) = 5099 set_robust_list(0x55556a17a660, 24) = 0 rseq(0x55556a17aca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor681041263", 4096) = 27 getrandom("\xb8\x15\x61\x28\x6d\x10\xcb\xd6", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556a17ad00 brk(0x55556a19bd00) = 0x55556a19bd00 brk(0x55556a19c000) = 0x55556a19c000 mprotect(0x7f40ef571000, 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 5100 attached [pid 5100] set_robust_list(0x55556a17a660, 24 [pid 5099] <... clone resumed>, child_tidptr=0x55556a17a650) = 5100 [pid 5100] <... set_robust_list resumed>) = 0 [pid 5100] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5100] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5100] setsid() = 1 [pid 5100] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5100] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5100] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5100] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5100] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5100] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5100] unshare(CLONE_NEWNS) = 0 [pid 5100] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5100] unshare(CLONE_NEWIPC) = 0 [pid 5100] unshare(CLONE_NEWCGROUP) = 0 [pid 5100] unshare(CLONE_NEWUTS) = 0 [pid 5100] unshare(CLONE_SYSVSEM) = 0 [pid 5100] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5100] write(3, "16777216", 8) = 8 [pid 5100] close(3) = 0 [pid 5100] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5100] write(3, "536870912", 9) = 9 [pid 5100] close(3) = 0 [pid 5100] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5100] write(3, "1024", 4) = 4 [pid 5100] close(3) = 0 [pid 5100] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5100] write(3, "8192", 4) = 4 [pid 5100] close(3) = 0 [pid 5100] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5100] write(3, "1024", 4) = 4 [pid 5100] close(3) = 0 [pid 5100] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5100] write(3, "1024", 4) = 4 [pid 5100] close(3) = 0 [pid 5100] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5100] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5100] close(3) = 0 [pid 5100] getpid() = 1 [pid 5100] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 5103] set_robust_list(0x55556a17a660, 24 [pid 5100] <... clone resumed>, child_tidptr=0x55556a17a650) = 2 [pid 5103] <... set_robust_list resumed>) = 0 [pid 5103] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5103] setpgid(0, 0) = 0 [pid 5103] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5103] write(3, "1000", 4) = 4 [pid 5103] close(3) = 0 [pid 5103] read(200, "\x33\x33\x00\x00\x00\x16\xaa\xaa\xaa\xaa\xaa\xaa\x86\xdd\x60\x00\x00\x00\x00\x38\x00\x01\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x16\x3a\x00\x05\x02\x00\x00\x01\x00\x8f\x00\xc2\x46\x00\x00\x00\x02\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\xff\xaa\xaa\xaa\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00"..., 1000) = 110 [pid 5103] read(200, "\x33\x33\x00\x00\x00\x16\xaa\xaa\xaa\xaa\xaa\xaa\x86\xdd\x60\x00\x00\x00\x00\x38\x00\x01\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x16\x3a\x00\x05\x02\x00\x00\x01\x00\x8f\x00\xc2\x46\x00\x00\x00\x02\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\xff\xaa\xaa\xaa\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00"..., 1000) = 110 executing program [pid 5103] read(200, 0x7ffcf4c50950, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5103] write(1, "executing program\n", 18) = 18 [pid 5103] socket(AF_INET, SOCK_STREAM, IPPROTO_IP) = 3 [pid 5103] ioctl(3, SIOCGIFINDEX, {ifr_name="syz_tun", ifr_ifindex=11}) = 0 [pid 5103] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 4 [pid 5103] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_CPUMAP, key_size=4, value_size=8, max_entries=8, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 5 [pid 5103] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=16, insns=0x20000280, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 5103] bpf(BPF_LINK_CREATE, {link_create={prog_fd=6, target_fd=11, attach_type=BPF_XDP, flags=0}, ...}, 64) = 7 [ 91.611399][ T5103] Oops: stack segment: 0000 [#1] PREEMPT SMP KASAN PTI [ 91.611444][ T5103] CPU: 0 UID: 0 PID: 5103 Comm: syz-executor681 Not tainted 6.10.0-rc6-next-20240703-syzkaller #0 [ 91.611475][ T5103] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 91.611495][ T5103] RIP: 0010:cpu_map_redirect+0x5c/0x470 [ 91.611539][ T5103] Code: 81 c3 00 18 00 00 48 89 d8 48 c1 e8 03 42 80 3c 30 00 74 08 48 89 df e8 62 6b 3d 00 4c 8b 2b 49 8d 5d 38 48 89 dd 48 c1 ed 03 <42> 0f b6 44 35 00 84 c0 0f 85 fd 02 00 00 44 8b 33 44 89 f6 83 e6 [ 91.611553][ T5103] RSP: 0018:ffffc9000395f960 EFLAGS: 00010202 [ 91.611569][ T5103] RAX: 1ffff110051dd300 RBX: 0000000000000038 RCX: ffff888028ee8000 [ 91.611583][ T5103] RDX: 0000000000000000 RSI: 000000000395f9b0 RDI: ffff88802ec3fc00 [ 91.611595][ T5103] RBP: 0000000000000007 R08: 0000000000000007 R09: ffffffff81b5ee2f [ 91.611608][ T5103] R10: 0000000000000004 R11: ffff888028ee8000 R12: 000000000395f9b0 [ 91.611622][ T5103] R13: 0000000000000000 R14: dffffc0000000000 R15: ffff88802ec3fc00 [ 91.611635][ T5103] FS: 000055556a17a380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 91.611650][ T5103] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 91.611662][ T5103] CR2: 00000000099d4b98 CR3: 0000000021f40000 CR4: 00000000003506f0 [ 91.611678][ T5103] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 91.611688][ T5103] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 91.611699][ T5103] Call Trace: [ 91.611706][ T5103] [ 91.611714][ T5103] ? __die_body+0x88/0xe0 [ 91.611741][ T5103] ? die+0xcf/0x110 [ 91.611766][ T5103] ? do_trap+0x15a/0x3a0 [ 91.611791][ T5103] ? do_error_trap+0x1dc/0x2c0 [ 91.611816][ T5103] ? __pfx_do_error_trap+0x10/0x10 [ 91.611841][ T5103] ? rcu_is_watching+0x15/0xb0 [ 91.611867][ T5103] ? exc_stack_segment+0x38/0x50 [ 91.611891][ T5103] ? asm_exc_stack_segment+0x26/0x30 [ 91.611914][ T5103] ? bpf_ringbuf_query+0x4f/0x150 [ 91.611937][ T5103] ? cpu_map_redirect+0x5c/0x470 [ 91.611960][ T5103] bpf_prog_ec9efaa32d58ce69+0x56/0x5a [ 91.611980][ T5103] tun_get_user+0x3321/0x4560 [ 91.612003][ T5103] ? tun_get_user+0x84c/0x4560 [ 91.612027][ T5103] ? __pfx_tun_get_user+0x10/0x10 [ 91.612049][ T5103] ? tun_get+0x1e/0x2f0 [ 91.612073][ T5103] ? tun_get+0x1e/0x2f0 [ 91.612088][ T5103] ? tun_get+0x27d/0x2f0 [ 91.612105][ T5103] tun_chr_write_iter+0x113/0x1f0 [ 91.612123][ T5103] vfs_write+0xa72/0xc90 [ 91.612141][ T5103] ? __pfx_tun_chr_write_iter+0x10/0x10 [ 91.612159][ T5103] ? __pfx_vfs_write+0x10/0x10 [ 91.612179][ T5103] ? lockdep_hardirqs_on+0x99/0x150 [ 91.612208][ T5103] ksys_write+0x1a0/0x2c0 [ 91.612227][ T5103] ? __pfx_ksys_write+0x10/0x10 [ 91.612243][ T5103] ? do_syscall_64+0x100/0x230 [ 91.612263][ T5103] do_syscall_64+0xf3/0x230 [ 91.612279][ T5103] ? clear_bhb_loop+0x35/0x90 [ 91.612301][ T5103] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 91.612321][ T5103] RIP: 0033:0x7f40ef4f8070 [ 91.612335][ T5103] Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d 51 e0 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89 [ 91.612348][ T5103] RSP: 002b:00007ffcf4c50d48 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [ 91.612386][ T5103] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f40ef4f8070 [ 91.612397][ T5103] RDX: 0000000000000022 RSI: 0000000020000a40 RDI: 00000000000000c8 [ 91.612408][ T5103] RBP: 0000000000000000 R08: 00007ffc0000000d R09: 00007ffc0000000d [ 91.612419][ T5103] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000 [ 91.612428][ T5103] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 91.612446][ T5103] [ 91.612451][ T5103] Modules linked in: [ 91.612462][ T5103] ---[ end trace 0000000000000000 ]--- [ 92.009338][ T5103] RIP: 0010:cpu_map_redirect+0x5c/0x470 [ 92.015154][ T5103] Code: 81 c3 00 18 00 00 48 89 d8 48 c1 e8 03 42 80 3c 30 00 74 08 48 89 df e8 62 6b 3d 00 4c 8b 2b 49 8d 5d 38 48 89 dd 48 c1 ed 03 <42> 0f b6 44 35 00 84 c0 0f 85 fd 02 00 00 44 8b 33 44 89 f6 83 e6 [ 92.036449][ T5103] RSP: 0018:ffffc9000395f960 EFLAGS: 00010202 [ 92.042846][ T5103] RAX: 1ffff110051dd300 RBX: 0000000000000038 RCX: ffff888028ee8000 [ 92.051819][ T5103] RDX: 0000000000000000 RSI: 000000000395f9b0 RDI: ffff88802ec3fc00 [ 92.060256][ T5103] RBP: 0000000000000007 R08: 0000000000000007 R09: ffffffff81b5ee2f [ 92.069058][ T5103] R10: 0000000000000004 R11: ffff888028ee8000 R12: 000000000395f9b0 [ 92.077789][ T5103] R13: 0000000000000000 R14: dffffc0000000000 R15: ffff88802ec3fc00 [ 92.086102][ T5103] FS: 000055556a17a380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 92.096026][ T5103] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 92.102659][ T5103] CR2: 00000000099d4b98 CR3: 0000000021f40000 CR4: 00000000003506f0 [ 92.112173][ T5103] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 92.120894][ T5103] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 92.129239][ T5103] Kernel panic - not syncing: Fatal exception in interrupt [ 92.138311][ T5103] Kernel Offset: disabled [ 92.142945][ T5103] Rebooting in 86400 seconds..