./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1677109998 <...> Warning: Permanently added '10.128.1.7' (ED25519) to the list of known hosts. execve("./syz-executor1677109998", ["./syz-executor1677109998"], 0x7ffc87c68200 /* 10 vars */) = 0 brk(NULL) = 0x55558e6ce000 brk(0x55558e6ced00) = 0x55558e6ced00 arch_prctl(ARCH_SET_FS, 0x55558e6ce380) = 0 set_tid_address(0x55558e6ce650) = 5228 set_robust_list(0x55558e6ce660, 24) = 0 rseq(0x55558e6ceca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1677109998", 4096) = 28 getrandom("\xee\x5e\xb3\x54\x7d\x62\x4c\x23", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55558e6ced00 brk(0x55558e6efd00) = 0x55558e6efd00 brk(0x55558e6f0000) = 0x55558e6f0000 mprotect(0x7f50ec3d7000, 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 5229 attached [pid 5229] set_robust_list(0x55558e6ce660, 24 [pid 5228] <... clone resumed>, child_tidptr=0x55558e6ce650) = 5229 [pid 5229] <... set_robust_list resumed>) = 0 [pid 5229] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5229] setpgid(0, 0) = 0 [pid 5229] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5229] write(3, "1000", 4) = 4 [pid 5229] close(3executing program ) = 0 [pid 5229] write(1, "executing program\n", 18) = 18 [pid 5229] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x20000180, 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=0, 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) = 3 [ 57.406327][ T5229] ================================================================== [ 57.414414][ T5229] BUG: KASAN: out-of-bounds in copy_from_kernel_nofault+0x7a/0x2f0 [ 57.422353][ T5229] Read of size 6 at addr fffffffffffffffd by task syz-executor167/5229 [ 57.430593][ T5229] [ 57.432922][ T5229] CPU: 1 UID: 0 PID: 5229 Comm: syz-executor167 Not tainted 6.12.0-rc1-next-20240930-syzkaller #0 [ 57.444035][ T5229] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 57.454266][ T5229] Call Trace: [ 57.457831][ T5229] [ 57.460754][ T5229] dump_stack_lvl+0x241/0x360 [ 57.465526][ T5229] ? __pfx_dump_stack_lvl+0x10/0x10 [ 57.471417][ T5229] ? __pfx__printk+0x10/0x10 [ 57.476068][ T5229] ? _printk+0xd5/0x120 [ 57.480226][ T5229] print_report+0x169/0x550 [ 57.484816][ T5229] ? timekeeping_get_ns+0x5c/0x420 [ 57.489963][ T5229] ? __virt_addr_valid+0x4bd/0x530 [ 57.495094][ T5229] ? copy_from_kernel_nofault+0x7a/0x2f0 [ 57.500737][ T5229] kasan_report+0x143/0x180 [ 57.505237][ T5229] ? copy_from_kernel_nofault+0x7a/0x2f0 [ 57.510989][ T5229] kasan_check_range+0x282/0x290 [ 57.516030][ T5229] copy_from_kernel_nofault+0x7a/0x2f0 [ 57.521499][ T5229] bpf_probe_read_kernel+0x2a/0x70 [ 57.526624][ T5229] bpf_prog_fe7b69aea4fa28bf+0x43/0x45 [ 57.532096][ T5229] bpf_test_run+0x4b1/0xa90 [ 57.536682][ T5229] ? bpf_dispatcher_change_prog+0xd8b/0xf10 [ 57.542672][ T5229] ? bpf_test_run+0x370/0xa90 [ 57.547362][ T5229] ? __pfx_bpf_test_run+0x10/0x10 [ 57.552426][ T5229] ? _copy_from_user+0xa6/0xe0 [ 57.557214][ T5229] ? bpf_test_init+0x15a/0x180 [ 57.562073][ T5229] ? xdp_convert_md_to_buff+0x5b/0x330 [ 57.567533][ T5229] bpf_prog_test_run_xdp+0x7da/0x11e0 [ 57.574294][ T5229] ? __pfx_bpf_prog_test_run_xdp+0x10/0x10 [ 57.580091][ T5229] ? __pfx_bpf_prog_test_run_xdp+0x10/0x10 [ 57.585886][ T5229] bpf_prog_test_run+0x2e4/0x360 [ 57.591015][ T5229] __sys_bpf+0x48d/0x810 [ 57.595272][ T5229] ? __pfx___sys_bpf+0x10/0x10 [ 57.600069][ T5229] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 57.606428][ T5229] ? exc_page_fault+0x590/0x8c0 [ 57.611291][ T5229] __x64_sys_bpf+0x7c/0x90 [ 57.615709][ T5229] do_syscall_64+0xf3/0x230 [ 57.620209][ T5229] ? clear_bhb_loop+0x35/0x90 [ 57.624884][ T5229] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 57.630780][ T5229] RIP: 0033:0x7f50ec364bb9 [ 57.635481][ T5229] 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 [ 57.655343][ T5229] RSP: 002b:00007ffed45c06d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 57.663750][ T5229] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f50ec364bb9 [ 57.671844][ T5229] RDX: 000000000000003b RSI: 0000000020000240 RDI: 000000000000000a [ 57.679991][ T5229] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006 [ 57.687957][ T5229] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 57.696013][ T5229] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001 [ 57.703990][ T5229] [ 57.706999][ T5229] [ 57.709309][ T5229] Memory state around the buggy address: [ 57.714926][ T5229] fffffffffffffe80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 57.722975][ T5229] ffffffffffffff00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 57.731110][ T5229] >ffffffffffffff80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 57.739310][ T5229] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN PTI [ 57.751883][ T5229] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 57.760283][ T5229] CPU: 1 UID: 0 PID: 5229 Comm: syz-executor167 Not tainted 6.12.0-rc1-next-20240930-syzkaller #0 [ 57.770943][ T5229] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 57.781160][ T5229] RIP: 0010:kasan_metadata_fetch_row+0x12/0x30 [ 57.787403][ T5229] Code: 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 48 c1 ee 03 48 b8 00 00 00 00 00 fc ff df <48> 8b 0c 06 48 8b 44 06 08 48 89 47 08 48 89 0f c3 cc cc cc cc 66 [ 57.807260][ T5229] RSP: 0018:ffffc90002f5f6d8 EFLAGS: 00010046 [ 57.813320][ T5229] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: cc1757ac84471d00 [ 57.821544][ T5229] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc90002f5f710 [ 57.829606][ T5229] RBP: ffffc90002f5f758 R08: ffffffff8bc0f2d3 R09: 0000000000000020 [ 57.838085][ T5229] R10: dffffc0000000000 R11: fffff520005ebee1 R12: ffffc90002f5f710 [ 57.846045][ T5229] R13: 0000000000000080 R14: ffffffffffffff80 R15: ffffc90002f5f6f0 [ 57.854007][ T5229] FS: 000055558e6ce380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 [ 57.862940][ T5229] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.869881][ T5229] CR2: 00007f50ec3db0d0 CR3: 0000000073e8a000 CR4: 00000000003526f0 [ 57.877890][ T5229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 57.886506][ T5229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 57.894561][ T5229] Call Trace: [ 57.897866][ T5229] [ 57.900819][ T5229] ? __die_body+0x5f/0xb0 [ 57.905148][ T5229] ? die_addr+0xb0/0xe0 [ 57.909293][ T5229] ? exc_general_protection+0x3dd/0x5d0 [ 57.914840][ T5229] ? asm_exc_general_protection+0x26/0x30 [ 57.920732][ T5229] ? vsnprintf+0x1cc3/0x1da0 [ 57.925316][ T5229] ? kasan_metadata_fetch_row+0x12/0x30 [ 57.930942][ T5229] print_report+0x4df/0x550 [ 57.935439][ T5229] ? __virt_addr_valid+0x4bd/0x530 [ 57.940546][ T5229] ? copy_from_kernel_nofault+0x7a/0x2f0 [ 57.946520][ T5229] kasan_report+0x143/0x180 [ 57.951304][ T5229] ? copy_from_kernel_nofault+0x7a/0x2f0 [ 57.956928][ T5229] kasan_check_range+0x282/0x290 [ 57.961858][ T5229] copy_from_kernel_nofault+0x7a/0x2f0 [ 57.967309][ T5229] bpf_probe_read_kernel+0x2a/0x70 [ 57.972538][ T5229] bpf_prog_fe7b69aea4fa28bf+0x43/0x45 [ 57.978155][ T5229] bpf_test_run+0x4b1/0xa90 [ 57.982649][ T5229] ? bpf_dispatcher_change_prog+0xd8b/0xf10 [ 57.988535][ T5229] ? bpf_test_run+0x370/0xa90 [ 57.993356][ T5229] ? __pfx_bpf_test_run+0x10/0x10 [ 57.998384][ T5229] ? _copy_from_user+0xa6/0xe0 [ 58.003134][ T5229] ? bpf_test_init+0x15a/0x180 [ 58.007888][ T5229] ? xdp_convert_md_to_buff+0x5b/0x330 [ 58.013428][ T5229] bpf_prog_test_run_xdp+0x7da/0x11e0 [ 58.018796][ T5229] ? __pfx_bpf_prog_test_run_xdp+0x10/0x10 [ 58.024615][ T5229] ? __pfx_bpf_prog_test_run_xdp+0x10/0x10 [ 58.030589][ T5229] bpf_prog_test_run+0x2e4/0x360 [ 58.035626][ T5229] __sys_bpf+0x48d/0x810 [ 58.039958][ T5229] ? __pfx___sys_bpf+0x10/0x10 [ 58.044737][ T5229] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 58.051244][ T5229] ? exc_page_fault+0x590/0x8c0 [ 58.056174][ T5229] __x64_sys_bpf+0x7c/0x90 [ 58.060580][ T5229] do_syscall_64+0xf3/0x230 [ 58.065076][ T5229] ? clear_bhb_loop+0x35/0x90 [ 58.069747][ T5229] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 58.075718][ T5229] RIP: 0033:0x7f50ec364bb9 [ 58.080294][ T5229] 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 [ 58.100065][ T5229] RSP: 002b:00007ffed45c06d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 58.108474][ T5229] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f50ec364bb9 [ 58.116436][ T5229] RDX: 000000000000003b RSI: 0000000020000240 RDI: 000000000000000a [ 58.124405][ T5229] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006 [ 58.132456][ T5229] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 58.140415][ T5229] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001 [ 58.148380][ T5229] [ 58.151418][ T5229] Modules linked in: [ 58.155306][ T5229] ---[ end trace 0000000000000000 ]--- [ 58.160752][ T5229] RIP: 0010:kasan_metadata_fetch_row+0x12/0x30 [ 58.166991][ T5229] Code: 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 48 c1 ee 03 48 b8 00 00 00 00 00 fc ff df <48> 8b 0c 06 48 8b 44 06 08 48 89 47 08 48 89 0f c3 cc cc cc cc 66 [ 58.186584][ T5229] RSP: 0018:ffffc90002f5f6d8 EFLAGS: 00010046 [ 58.192735][ T5229] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: cc1757ac84471d00 [ 58.200696][ T5229] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc90002f5f710 [ 58.208659][ T5229] RBP: ffffc90002f5f758 R08: ffffffff8bc0f2d3 R09: 0000000000000020 [ 58.216706][ T5229] R10: dffffc0000000000 R11: fffff520005ebee1 R12: ffffc90002f5f710 [ 58.224668][ T5229] R13: 0000000000000080 R14: ffffffffffffff80 R15: ffffc90002f5f6f0 [ 58.232632][ T5229] FS: 000055558e6ce380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 [ 58.241574][ T5229] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.248331][ T5229] CR2: 00007f50ec3db0d0 CR3: 0000000073e8a000 CR4: 00000000003526f0 [ 58.256298][ T5229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 58.264267][ T5229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 58.272230][ T5229] Kernel panic - not syncing: Fatal exception in interrupt [ 58.279662][ T5229] Kernel Offset: disabled [ 58.283980][ T5229] Rebooting in 86400 seconds..