./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1005227106 <...> Warning: Permanently added '10.128.0.249' (ED25519) to the list of known hosts. execve("./syz-executor1005227106", ["./syz-executor1005227106"], 0x7ffe46522990 /* 10 vars */) = 0 brk(NULL) = 0x555592643000 brk(0x555592643d00) = 0x555592643d00 arch_prctl(ARCH_SET_FS, 0x555592643380) = 0 set_tid_address(0x555592643650) = 5228 set_robust_list(0x555592643660, 24) = 0 rseq(0x555592643ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1005227106", 4096) = 28 getrandom("\x74\xbd\x23\x3b\x92\xa1\xe4\xa5", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555592643d00 brk(0x555592664d00) = 0x555592664d00 brk(0x555592665000) = 0x555592665000 mprotect(0x7f56177d8000, 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 write(1, "executing program\n", 18executing program ) = 18 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 [ 59.270916][ T5228] ================================================================== [ 59.279030][ T5228] BUG: KASAN: out-of-bounds in copy_from_kernel_nofault+0x7a/0x2f0 [ 59.286932][ T5228] Read of size 6 at addr fffffffffffffffd by task syz-executor100/5228 [ 59.295158][ T5228] [ 59.297481][ T5228] CPU: 0 UID: 0 PID: 5228 Comm: syz-executor100 Not tainted 6.12.0-rc1-next-20240930-syzkaller #0 [ 59.308054][ T5228] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 59.318118][ T5228] Call Trace: [ 59.321414][ T5228] [ 59.324350][ T5228] dump_stack_lvl+0x241/0x360 [ 59.329047][ T5228] ? __pfx_dump_stack_lvl+0x10/0x10 [ 59.334240][ T5228] ? __pfx__printk+0x10/0x10 [ 59.338822][ T5228] ? _printk+0xd5/0x120 [ 59.342974][ T5228] print_report+0x169/0x550 [ 59.347478][ T5228] ? timekeeping_get_ns+0x5c/0x420 [ 59.352591][ T5228] ? __virt_addr_valid+0x4bd/0x530 [ 59.357697][ T5228] ? copy_from_kernel_nofault+0x7a/0x2f0 [ 59.363322][ T5228] kasan_report+0x143/0x180 [ 59.367841][ T5228] ? copy_from_kernel_nofault+0x7a/0x2f0 [ 59.373555][ T5228] kasan_check_range+0x282/0x290 [ 59.378487][ T5228] copy_from_kernel_nofault+0x7a/0x2f0 [ 59.383939][ T5228] bpf_probe_read_kernel+0x2a/0x70 [ 59.389048][ T5228] bpf_prog_fe7b69aea4fa28bf+0x43/0x45 [ 59.394524][ T5228] bpf_test_run+0x4b1/0xa90 [ 59.399105][ T5228] ? bpf_dispatcher_change_prog+0xd8b/0xf10 [ 59.404991][ T5228] ? bpf_test_run+0x370/0xa90 [ 59.409750][ T5228] ? __pfx_bpf_test_run+0x10/0x10 [ 59.414769][ T5228] ? _copy_from_user+0xa6/0xe0 [ 59.419529][ T5228] ? bpf_test_init+0x15a/0x180 [ 59.424298][ T5228] ? xdp_convert_md_to_buff+0x5b/0x330 [ 59.429751][ T5228] bpf_prog_test_run_xdp+0x7da/0x11e0 [ 59.435118][ T5228] ? __pfx_bpf_prog_test_run_xdp+0x10/0x10 [ 59.440918][ T5228] ? __pfx_bpf_prog_test_run_xdp+0x10/0x10 [ 59.446715][ T5228] bpf_prog_test_run+0x2e4/0x360 [ 59.451650][ T5228] __sys_bpf+0x48d/0x810 [ 59.455889][ T5228] ? __pfx___sys_bpf+0x10/0x10 [ 59.460650][ T5228] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 59.466997][ T5228] ? do_syscall_64+0x100/0x230 [ 59.471755][ T5228] __x64_sys_bpf+0x7c/0x90 [ 59.476169][ T5228] do_syscall_64+0xf3/0x230 [ 59.480665][ T5228] ? clear_bhb_loop+0x35/0x90 [ 59.485333][ T5228] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 59.491226][ T5228] RIP: 0033:0x7f56177654e9 [ 59.495633][ T5228] Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 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 b8 ff ff ff f7 d8 64 89 01 48 [ 59.515244][ T5228] RSP: 002b:00007ffe0d6b0b28 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 59.523652][ T5228] RAX: ffffffffffffffda RBX: 00007ffe0d6b0cf8 RCX: 00007f56177654e9 [ 59.531620][ T5228] RDX: 000000000000003b RSI: 0000000020000240 RDI: 000000000000000a [ 59.539582][ T5228] RBP: 00007f56177d8610 R08: 0000000000000000 R09: 00007ffe0d6b0cf8 [ 59.547630][ T5228] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 59.555592][ T5228] R13: 00007ffe0d6b0ce8 R14: 0000000000000001 R15: 0000000000000001 [ 59.563557][ T5228] [ 59.566567][ T5228] [ 59.568879][ T5228] Memory state around the buggy address: [ 59.574492][ T5228] fffffffffffffe80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 59.582556][ T5228] ffffffffffffff00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 59.590606][ T5228] >ffffffffffffff80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 59.598795][ T5228] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN PTI [ 59.611365][ T5228] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 59.619762][ T5228] CPU: 0 UID: 0 PID: 5228 Comm: syz-executor100 Not tainted 6.12.0-rc1-next-20240930-syzkaller #0 [ 59.630332][ T5228] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 59.640376][ T5228] RIP: 0010:kasan_metadata_fetch_row+0x12/0x30 [ 59.646528][ T5228] 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 [ 59.666170][ T5228] RSP: 0018:ffffc90003ef76d8 EFLAGS: 00010046 [ 59.672225][ T5228] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: c6ed900456943a00 [ 59.680191][ T5228] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc90003ef7710 [ 59.688157][ T5228] RBP: ffffc90003ef7758 R08: ffffffff8bc0f2d3 R09: 0000000000000020 [ 59.696133][ T5228] R10: dffffc0000000000 R11: fffff520007deee1 R12: ffffc90003ef7710 [ 59.704111][ T5228] R13: 0000000000000080 R14: ffffffffffffff80 R15: ffffc90003ef76f0 [ 59.712074][ T5228] FS: 0000555592643380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 59.721015][ T5228] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.727591][ T5228] CR2: 000056143cbc1000 CR3: 0000000079f80000 CR4: 00000000003526f0 [ 59.735677][ T5228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 59.743636][ T5228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 59.751594][ T5228] Call Trace: [ 59.754865][ T5228] [ 59.757801][ T5228] ? __die_body+0x5f/0xb0 [ 59.762152][ T5228] ? die_addr+0xb0/0xe0 [ 59.766313][ T5228] ? exc_general_protection+0x3dd/0x5d0 [ 59.771869][ T5228] ? asm_exc_general_protection+0x26/0x30 [ 59.777589][ T5228] ? vsnprintf+0x1cc3/0x1da0 [ 59.782176][ T5228] ? kasan_metadata_fetch_row+0x12/0x30 [ 59.787746][ T5228] print_report+0x4df/0x550 [ 59.792245][ T5228] ? __virt_addr_valid+0x4bd/0x530 [ 59.797348][ T5228] ? copy_from_kernel_nofault+0x7a/0x2f0 [ 59.802992][ T5228] kasan_report+0x143/0x180 [ 59.807491][ T5228] ? copy_from_kernel_nofault+0x7a/0x2f0 [ 59.813207][ T5228] kasan_check_range+0x282/0x290 [ 59.818140][ T5228] copy_from_kernel_nofault+0x7a/0x2f0 [ 59.823589][ T5228] bpf_probe_read_kernel+0x2a/0x70 [ 59.828697][ T5228] bpf_prog_fe7b69aea4fa28bf+0x43/0x45 [ 59.834144][ T5228] bpf_test_run+0x4b1/0xa90 [ 59.838638][ T5228] ? bpf_dispatcher_change_prog+0xd8b/0xf10 [ 59.844522][ T5228] ? bpf_test_run+0x370/0xa90 [ 59.849198][ T5228] ? __pfx_bpf_test_run+0x10/0x10 [ 59.854219][ T5228] ? _copy_from_user+0xa6/0xe0 [ 59.858969][ T5228] ? bpf_test_init+0x15a/0x180 [ 59.863720][ T5228] ? xdp_convert_md_to_buff+0x5b/0x330 [ 59.869170][ T5228] bpf_prog_test_run_xdp+0x7da/0x11e0 [ 59.874544][ T5228] ? __pfx_bpf_prog_test_run_xdp+0x10/0x10 [ 59.880345][ T5228] ? __pfx_bpf_prog_test_run_xdp+0x10/0x10 [ 59.886141][ T5228] bpf_prog_test_run+0x2e4/0x360 [ 59.891079][ T5228] __sys_bpf+0x48d/0x810 [ 59.895315][ T5228] ? __pfx___sys_bpf+0x10/0x10 [ 59.900075][ T5228] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 59.906400][ T5228] ? do_syscall_64+0x100/0x230 [ 59.911158][ T5228] __x64_sys_bpf+0x7c/0x90 [ 59.915569][ T5228] do_syscall_64+0xf3/0x230 [ 59.920066][ T5228] ? clear_bhb_loop+0x35/0x90 [ 59.924733][ T5228] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 59.930614][ T5228] RIP: 0033:0x7f56177654e9 [ 59.935019][ T5228] Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 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 b8 ff ff ff f7 d8 64 89 01 48 [ 59.954628][ T5228] RSP: 002b:00007ffe0d6b0b28 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 59.963037][ T5228] RAX: ffffffffffffffda RBX: 00007ffe0d6b0cf8 RCX: 00007f56177654e9 [ 59.971004][ T5228] RDX: 000000000000003b RSI: 0000000020000240 RDI: 000000000000000a [ 59.978969][ T5228] RBP: 00007f56177d8610 R08: 0000000000000000 R09: 00007ffe0d6b0cf8 [ 59.987017][ T5228] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 59.995006][ T5228] R13: 00007ffe0d6b0ce8 R14: 0000000000000001 R15: 0000000000000001 [ 60.002971][ T5228] [ 60.005993][ T5228] Modules linked in: [ 60.009878][ T5228] ---[ end trace 0000000000000000 ]--- [ 60.015330][ T5228] RIP: 0010:kasan_metadata_fetch_row+0x12/0x30 [ 60.021480][ T5228] 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 [ 60.041076][ T5228] RSP: 0018:ffffc90003ef76d8 EFLAGS: 00010046 [ 60.047132][ T5228] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: c6ed900456943a00 [ 60.055092][ T5228] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc90003ef7710 [ 60.063047][ T5228] RBP: ffffc90003ef7758 R08: ffffffff8bc0f2d3 R09: 0000000000000020 [ 60.071009][ T5228] R10: dffffc0000000000 R11: fffff520007deee1 R12: ffffc90003ef7710 [ 60.078994][ T5228] R13: 0000000000000080 R14: ffffffffffffff80 R15: ffffc90003ef76f0 [ 60.087134][ T5228] FS: 0000555592643380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 60.096060][ T5228] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 60.102641][ T5228] CR2: 000056143cbc1000 CR3: 0000000079f80000 CR4: 00000000003526f0 [ 60.110607][ T5228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 60.118578][ T5228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 60.126543][ T5228] Kernel panic - not syncing: Fatal exception in interrupt [ 60.133841][ T5228] Kernel Offset: disabled [ 60.138159][ T5228] Rebooting in 86400 seconds..