./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3570863809 <...> Warning: Permanently added '10.128.0.194' (ED25519) to the list of known hosts. execve("./syz-executor3570863809", ["./syz-executor3570863809"], 0x7ffe8e5644d0 /* 10 vars */) = 0 brk(NULL) = 0x555584194000 brk(0x555584194d00) = 0x555584194d00 arch_prctl(ARCH_SET_FS, 0x555584194380) = 0 set_tid_address(0x555584194650) = 5830 set_robust_list(0x555584194660, 24) = 0 rseq(0x555584194ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3570863809", 4096) = 28 getrandom("\xfc\xb6\x6e\x90\xf1\x9f\xf6\xd7", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555584194d00 brk(0x5555841b5d00) = 0x5555841b5d00 brk(0x5555841b6000) = 0x5555841b6000 mprotect(0x7fdb90377000, 16384, PROT_READ) = 0 mmap(0x3ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x3ffffffff000 mmap(0x400000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0executing program ) = 0x400000000000 mmap(0x400001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x400001000000 write(1, "executing program\n", 18) = 18 socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC) = 3 [ 73.002889][ T5830] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000197: 0000 [#1] PREEMPT SMP KASAN PTI [ 73.015510][ T5830] KASAN: null-ptr-deref in range [0x0000000000000cb8-0x0000000000000cbf] [ 73.023935][ T5830] CPU: 1 UID: 0 PID: 5830 Comm: syz-executor357 Not tainted 6.14.0-rc5-syzkaller-01064-g2525e16a2bae #0 [ 73.035032][ T5830] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 73.045088][ T5830] RIP: 0010:ethnl_default_dumpit+0x447/0xd40 [ 73.051091][ T5830] Code: 49 8b 1f 48 89 d8 48 c1 e8 03 42 80 3c 30 00 74 08 48 89 df e8 ca e6 17 f8 4c 8b 3b 49 8d 9f bd 0c 00 00 48 89 d8 48 c1 e8 03 <42> 0f b6 04 30 84 c0 0f 85 4b 07 00 00 0f b6 1b 31 ff 89 de e8 f0 [ 73.070693][ T5830] RSP: 0018:ffffc9000400f0d8 EFLAGS: 00010203 [ 73.076766][ T5830] RAX: 0000000000000197 RBX: 0000000000000cbd RCX: 0000000000000000 [ 73.084752][ T5830] RDX: 0000000000000000 RSI: ffffffff8c80fdc0 RDI: 0000000000000001 [ 73.092721][ T5830] RBP: ffff888033e5ac00 R08: ffffffff903d0b77 R09: 1ffffffff207a16e [ 73.100695][ T5830] R10: dffffc0000000000 R11: fffffbfff207a16f R12: ffff888144ad0600 [ 73.108664][ T5830] R13: ffff88802fd3e140 R14: dffffc0000000000 R15: 0000000000000000 [ 73.116634][ T5830] FS: 0000555584194380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 [ 73.125565][ T5830] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 73.132151][ T5830] CR2: 0000400000000a40 CR3: 00000000352bc000 CR4: 00000000003526f0 [ 73.140122][ T5830] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 73.148116][ T5830] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 73.156086][ T5830] Call Trace: [ 73.159368][ T5830] [ 73.162293][ T5830] ? __die_body+0x5f/0xb0 [ 73.166629][ T5830] ? die_addr+0xb0/0xe0 [ 73.170826][ T5830] ? exc_general_protection+0x3dd/0x5d0 [ 73.176392][ T5830] ? asm_exc_general_protection+0x26/0x30 [ 73.182120][ T5830] ? ethnl_default_dumpit+0x447/0xd40 [ 73.187519][ T5830] ? ethnl_default_dumpit+0x402/0xd40 [ 73.192893][ T5830] ? ethnl_default_dumpit+0x78/0xd40 [ 73.198214][ T5830] genl_dumpit+0x10d/0x1b0 [ 73.202629][ T5830] netlink_dump+0x64d/0xe10 [ 73.207174][ T5830] ? __pfx_netlink_dump+0x10/0x10 [ 73.212199][ T5830] ? genl_start+0x59d/0x6d0 [ 73.216700][ T5830] __netlink_dump_start+0x5a2/0x790 [ 73.221900][ T5830] genl_rcv_msg+0x894/0xec0 [ 73.226411][ T5830] ? __pfx_genl_rcv_msg+0x10/0x10 [ 73.231430][ T5830] ? __pfx_genl_start+0x10/0x10 [ 73.236274][ T5830] ? __pfx_genl_dumpit+0x10/0x10 [ 73.241201][ T5830] ? __pfx_genl_done+0x10/0x10 [ 73.245976][ T5830] ? __pfx_lock_acquire+0x10/0x10 [ 73.250996][ T5830] ? __pfx_ethnl_default_start+0x10/0x10 [ 73.256644][ T5830] ? __pfx_ethnl_default_dumpit+0x10/0x10 [ 73.262355][ T5830] ? __pfx_ethnl_default_done+0x10/0x10 [ 73.267919][ T5830] ? __pfx___might_resched+0x10/0x10 [ 73.273201][ T5830] netlink_rcv_skb+0x206/0x480 [ 73.277969][ T5830] ? __pfx_genl_rcv_msg+0x10/0x10 [ 73.282984][ T5830] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 73.288285][ T5830] genl_rcv+0x28/0x40 [ 73.292269][ T5830] netlink_unicast+0x7f6/0x990 [ 73.297038][ T5830] ? __pfx_netlink_unicast+0x10/0x10 [ 73.302315][ T5830] ? __virt_addr_valid+0x45f/0x530 [ 73.307417][ T5830] ? __phys_addr_symbol+0x2f/0x70 [ 73.312446][ T5830] ? __check_object_size+0x47a/0x730 [ 73.317741][ T5830] netlink_sendmsg+0x8de/0xcb0 [ 73.322513][ T5830] ? __pfx_netlink_sendmsg+0x10/0x10 [ 73.327824][ T5830] ? __lock_acquire+0x1397/0x2100 [ 73.332861][ T5830] ? aa_sock_msg_perm+0x91/0x160 [ 73.337816][ T5830] ? __pfx_netlink_sendmsg+0x10/0x10 [ 73.343101][ T5830] __sock_sendmsg+0x221/0x270 [ 73.347780][ T5830] ____sys_sendmsg+0x53a/0x860 [ 73.352538][ T5830] ? __pfx_____sys_sendmsg+0x10/0x10 [ 73.357818][ T5830] ? do_raw_spin_lock+0x14f/0x370 [ 73.362859][ T5830] __sys_sendmsg+0x269/0x350 [ 73.367448][ T5830] ? __pfx___sys_sendmsg+0x10/0x10 [ 73.372573][ T5830] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 73.378909][ T5830] ? exc_page_fault+0x590/0x8b0 [ 73.383757][ T5830] do_syscall_64+0xf3/0x230 [ 73.388256][ T5830] ? clear_bhb_loop+0x35/0x90 [ 73.392932][ T5830] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 73.398838][ T5830] RIP: 0033:0x7fdb90304329 [ 73.403251][ T5830] 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 [ 73.422853][ T5830] RSP: 002b:00007fffa4264738 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 73.431271][ T5830] RAX: ffffffffffffffda RBX: 00007fffa4264908 RCX: 00007fdb90304329 [ 73.439240][ T5830] RDX: 0000000000000000 RSI: 0000400000000a40 RDI: 0000000000000003 [ 73.447205][ T5830] RBP: 00007fdb90377610 R08: 0000000000000000 R09: 00007fffa4264908 [ 73.455172][ T5830] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 73.463140][ T5830] R13: 00007fffa42648f8 R14: 0000000000000001 R15: 0000000000000001 [ 73.471112][ T5830] [ 73.474135][ T5830] Modules linked in: [ 73.478401][ T5830] ---[ end trace 0000000000000000 ]--- [ 73.484545][ T5830] RIP: 0010:ethnl_default_dumpit+0x447/0xd40 [ 73.490586][ T5830] Code: 49 8b 1f 48 89 d8 48 c1 e8 03 42 80 3c 30 00 74 08 48 89 df e8 ca e6 17 f8 4c 8b 3b 49 8d 9f bd 0c 00 00 48 89 d8 48 c1 e8 03 <42> 0f b6 04 30 84 c0 0f 85 4b 07 00 00 0f b6 1b 31 ff 89 de e8 f0 [ 73.511447][ T5830] RSP: 0018:ffffc9000400f0d8 EFLAGS: 00010203 [ 73.517621][ T5830] RAX: 0000000000000197 RBX: 0000000000000cbd RCX: 0000000000000000 [ 73.525725][ T5830] RDX: 0000000000000000 RSI: ffffffff8c80fdc0 RDI: 0000000000000001 [ 73.533704][ T5830] RBP: ffff888033e5ac00 R08: ffffffff903d0b77 R09: 1ffffffff207a16e [ 73.541752][ T5830] R10: dffffc0000000000 R11: fffffbfff207a16f R12: ffff888144ad0600 [ 73.549791][ T5830] R13: ffff88802fd3e140 R14: dffffc0000000000 R15: 0000000000000000 [ 73.557806][ T5830] FS: 0000555584194380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 73.566792][ T5830] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 73.573376][ T5830] CR2: 000000000045ad50 CR3: 00000000352bc000 CR4: 00000000003526f0 [ 73.581399][ T5830] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 73.589411][ T5830] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 73.597443][ T5830] Kernel panic - not syncing: Fatal exception [ 73.603882][ T5830] Kernel Offset: disabled [ 73.608205][ T5830] Rebooting in 86400 seconds..