./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1539697216 <...> Warning: Permanently added '10.128.1.60' (ED25519) to the list of known hosts. execve("./syz-executor1539697216", ["./syz-executor1539697216"], 0x7ffed7571320 /* 10 vars */) = 0 brk(NULL) = 0x55557cbd4000 brk(0x55557cbd4d00) = 0x55557cbd4d00 arch_prctl(ARCH_SET_FS, 0x55557cbd4380) = 0 set_tid_address(0x55557cbd4650) = 5097 set_robust_list(0x55557cbd4660, 24) = 0 rseq(0x55557cbd4ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1539697216", 4096) = 28 getrandom("\x66\xa2\xce\xd2\x2d\x3d\xf7\x5d", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557cbd4d00 brk(0x55557cbf5d00) = 0x55557cbf5d00 brk(0x55557cbf6000) = 0x55557cbf6000 mprotect(0x7fa9a2b56000, 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 5098 attached [pid 5098] set_robust_list(0x55557cbd4660, 24 [pid 5097] <... clone resumed>, child_tidptr=0x55557cbd4650) = 5098 [pid 5098] <... set_robust_list resumed>) = 0 [pid 5098] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5098] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5098] setsid() = 1 [pid 5098] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5098] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5098] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5098] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5098] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5098] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5098] unshare(CLONE_NEWNS) = 0 [pid 5098] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5098] unshare(CLONE_NEWIPC) = 0 [pid 5098] unshare(CLONE_NEWCGROUP) = 0 [pid 5098] unshare(CLONE_NEWUTS) = 0 [pid 5098] unshare(CLONE_SYSVSEM) = 0 [pid 5098] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5098] write(3, "16777216", 8) = 8 [pid 5098] close(3) = 0 [pid 5098] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5098] write(3, "536870912", 9) = 9 [pid 5098] close(3) = 0 [pid 5098] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5098] write(3, "1024", 4) = 4 [pid 5098] close(3) = 0 [pid 5098] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5098] write(3, "8192", 4) = 4 [pid 5098] close(3) = 0 [pid 5098] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5098] write(3, "1024", 4) = 4 [pid 5098] close(3) = 0 [pid 5098] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5098] write(3, "1024", 4) = 4 [pid 5098] close(3) = 0 [pid 5098] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5098] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5098] close(3) = 0 [pid 5098] getpid() = 1 [pid 5098] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 5101] set_robust_list(0x55557cbd4660, 24 [pid 5098] <... clone resumed>, child_tidptr=0x55557cbd4650) = 2 [pid 5101] <... set_robust_list resumed>) = 0 [pid 5101] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5101] setpgid(0, 0) = 0 [pid 5101] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5101] write(3, "1000", 4) = 4 [pid 5101] close(3) = 0 [pid 5101] 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 5101] read(200, 0x7ffd3cd09390, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5101] write(1, "executing program\n", 18executing program ) = 18 [pid 5101] socket(AF_INET, SOCK_STREAM, IPPROTO_IP) = 3 [pid 5101] ioctl(3, SIOCGIFINDEX, {ifr_name="syz_tun", ifr_ifindex=11}) = 0 [pid 5101] 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 5101] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP, 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 5101] 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 5101] bpf(BPF_LINK_CREATE, {link_create={prog_fd=6, target_fd=11, attach_type=BPF_XDP, flags=0}, ...}, 64) = 7 [ 74.026137][ T5101] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000007: 0000 [#1] PREEMPT SMP KASAN PTI [ 74.026177][ T5101] KASAN: null-ptr-deref in range [0x0000000000000038-0x000000000000003f] [ 74.026194][ T5101] CPU: 1 UID: 0 PID: 5101 Comm: syz-executor153 Not tainted 6.10.0-rc6-next-20240703-syzkaller #0 [ 74.026220][ T5101] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 74.026234][ T5101] RIP: 0010:dev_map_redirect+0x65/0x6a0 [ 74.026266][ T5101] Code: 48 c1 e8 03 80 3c 28 00 74 08 48 89 df e8 83 b3 3d 00 4c 8b 2b 4d 8d 7d 38 4c 89 fb 48 c1 eb 03 48 b8 00 00 00 00 00 fc ff df <0f> b6 04 03 84 c0 0f 85 6e 04 00 00 41 8b 2f 89 ee 83 e6 02 31 ff [ 74.026278][ T5101] RSP: 0018:ffffc9000355f6e8 EFLAGS: 00010202 [ 74.026295][ T5101] RAX: dffffc0000000000 RBX: 0000000000000007 RCX: ffff888018b78000 [ 74.026306][ T5101] RDX: 0000000000000000 RSI: 000000000355f738 RDI: ffff8880183a2800 [ 74.026317][ T5101] RBP: dffffc0000000000 R08: 0000000000000007 R09: ffffffff81b5ee2f [ 74.026327][ T5101] R10: 0000000000000004 R11: ffff888018b78000 R12: 000000000355f738 [ 74.026337][ T5101] R13: 0000000000000000 R14: 0000000000000008 R15: 0000000000000038 [ 74.026347][ T5101] FS: 000055557cbd4380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 74.026360][ T5101] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.026371][ T5101] CR2: 000000002000f000 CR3: 0000000078ac6000 CR4: 00000000003506f0 [ 74.026384][ T5101] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 74.026393][ T5101] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 74.026403][ T5101] Call Trace: [ 74.026408][ T5101] [ 74.026415][ T5101] ? __die_body+0x88/0xe0 [ 74.026438][ T5101] ? die_addr+0x108/0x140 [ 74.026462][ T5101] ? exc_general_protection+0x3dd/0x5d0 [ 74.026494][ T5101] ? asm_exc_general_protection+0x26/0x30 [ 74.026515][ T5101] ? bpf_ringbuf_query+0x4f/0x150 [ 74.026535][ T5101] ? dev_map_redirect+0x65/0x6a0 [ 74.026552][ T5101] ? dev_map_redirect+0x28/0x6a0 [ 74.026570][ T5101] bpf_prog_ec9efaa32d58ce69+0x56/0x5a [ 74.026587][ T5101] bpf_prog_run_generic_xdp+0x679/0x14c0 [ 74.026620][ T5101] do_xdp_generic+0x673/0xb90 [ 74.026643][ T5101] ? __pfx_do_xdp_generic+0x10/0x10 [ 74.026662][ T5101] ? tun_get_user+0x26c8/0x4560 [ 74.026686][ T5101] ? tun_get_user+0x26c8/0x4560 [ 74.026701][ T5101] tun_get_user+0x2805/0x4560 [ 74.026725][ T5101] ? __pfx_tun_get_user+0x10/0x10 [ 74.026742][ T5101] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 74.026758][ T5101] ? tun_get+0x1e/0x2f0 [ 74.026779][ T5101] ? tun_get+0x1e/0x2f0 [ 74.026793][ T5101] ? tun_get+0x27d/0x2f0 [ 74.026808][ T5101] tun_chr_write_iter+0x113/0x1f0 [ 74.026824][ T5101] vfs_write+0xa72/0xc90 [ 74.026842][ T5101] ? __pfx_tun_chr_write_iter+0x10/0x10 [ 74.026857][ T5101] ? __pfx_vfs_write+0x10/0x10 [ 74.026875][ T5101] ? lockdep_hardirqs_on+0x99/0x150 [ 74.026910][ T5101] ksys_write+0x1a0/0x2c0 [ 74.026934][ T5101] ? __pfx_ksys_write+0x10/0x10 [ 74.026951][ T5101] ? do_syscall_64+0x100/0x230 [ 74.026969][ T5101] do_syscall_64+0xf3/0x230 [ 74.026982][ T5101] ? clear_bhb_loop+0x35/0x90 [ 74.027002][ T5101] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 74.027019][ T5101] RIP: 0033:0x7fa9a2adcf90 [ 74.027032][ T5101] 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 31 e1 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 [ 74.027044][ T5101] RSP: 002b:00007ffd3cd09788 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [ 74.027058][ T5101] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa9a2adcf90 [ 74.027069][ T5101] RDX: 000000000000fdef RSI: 0000000020000100 RDI: 00000000000000c8 [ 74.027085][ T5101] RBP: 0000000000000000 R08: 00007ffd3cd098b8 R09: 00007ffd3cd098b8 [ 74.027095][ T5101] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000 [ 74.027104][ T5101] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 74.027120][ T5101] [ 74.027124][ T5101] Modules linked in: [ 74.027137][ T5101] ---[ end trace 0000000000000000 ]--- [ 74.417874][ T5101] RIP: 0010:dev_map_redirect+0x65/0x6a0 [ 74.423430][ T5101] Code: 48 c1 e8 03 80 3c 28 00 74 08 48 89 df e8 83 b3 3d 00 4c 8b 2b 4d 8d 7d 38 4c 89 fb 48 c1 eb 03 48 b8 00 00 00 00 00 fc ff df <0f> b6 04 03 84 c0 0f 85 6e 04 00 00 41 8b 2f 89 ee 83 e6 02 31 ff [ 74.443088][ T5101] RSP: 0018:ffffc9000355f6e8 EFLAGS: 00010202 [ 74.449206][ T5101] RAX: dffffc0000000000 RBX: 0000000000000007 RCX: ffff888018b78000 [ 74.457215][ T5101] RDX: 0000000000000000 RSI: 000000000355f738 RDI: ffff8880183a2800 [ 74.465244][ T5101] RBP: dffffc0000000000 R08: 0000000000000007 R09: ffffffff81b5ee2f [ 74.473217][ T5101] R10: 0000000000000004 R11: ffff888018b78000 R12: 000000000355f738 [ 74.481226][ T5101] R13: 0000000000000000 R14: 0000000000000008 R15: 0000000000000038 [ 74.489234][ T5101] FS: 000055557cbd4380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 74.498230][ T5101] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.504837][ T5101] CR2: 000000002000f000 CR3: 0000000078ac6000 CR4: 00000000003506f0 [ 74.512853][ T5101] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 74.520860][ T5101] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 74.528877][ T5101] Kernel panic - not syncing: Fatal exception in interrupt [ 74.536459][ T5101] Kernel Offset: disabled [ 74.540782][ T5101] Rebooting in 86400 seconds..