./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor579036502 <...> Warning: Permanently added '10.128.1.31' (ED25519) to the list of known hosts. execve("./syz-executor579036502", ["./syz-executor579036502"], 0x7ffdbfd597d0 /* 10 vars */) = 0 brk(NULL) = 0x55556089f000 brk(0x55556089fd00) = 0x55556089fd00 arch_prctl(ARCH_SET_FS, 0x55556089f380) = 0 set_tid_address(0x55556089f650) = 5834 set_robust_list(0x55556089f660, 24) = 0 rseq(0x55556089fca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor579036502", 4096) = 27 getrandom("\x68\x22\x62\xfa\xca\x50\x98\x42", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556089fd00 brk(0x5555608c0d00) = 0x5555608c0d00 brk(0x5555608c1000) = 0x5555608c1000 mprotect(0x7fa508119000, 16384, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 executing program write(1, "executing program\n", 18) = 18 socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 3 [ 88.973102][ T5834] netlink: 'syz-executor579': attribute type 1 has an invalid length. [ 88.981944][ T5834] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000055: 0000 [#1] SMP KASAN PTI [ 88.993939][ T5834] KASAN: null-ptr-deref in range [0x00000000000002a8-0x00000000000002af] [ 89.002377][ T5834] CPU: 1 UID: 0 PID: 5834 Comm: syz-executor579 Not tainted 6.15.0-syzkaller-07817-gb56bbaf8c9ff #0 PREEMPT(full) [ 89.014624][ T5834] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 89.024688][ T5834] RIP: 0010:dev_set_group+0xc0/0x230 [ 89.030039][ T5834] Code: 03 43 80 3c 2f 00 74 08 48 89 df e8 4a 40 d4 f8 41 bd a8 02 00 00 4c 03 2b 4c 89 e8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 4c 89 ef e8 22 40 d4 f8 31 c0 49 83 7d 00 00 0f [ 89.049663][ T5834] RSP: 0018:ffffc9000417ee60 EFLAGS: 00010206 [ 89.055762][ T5834] RAX: 0000000000000055 RBX: ffff8880227e4008 RCX: dffffc0000000000 [ 89.063742][ T5834] RDX: 0000000000000000 RSI: 0000000055690764 RDI: ffff8880227e4000 [ 89.071711][ T5834] RBP: ffff8880227e4000 R08: 0000000000400dc0 R09: 00000000ffffffff [ 89.079704][ T5834] R10: dffffc0000000000 R11: fffffbfff1f41637 R12: 0000000000000000 [ 89.087682][ T5834] R13: 00000000000002a8 R14: 1ffff110044fc998 R15: 1ffff110044fc801 [ 89.095671][ T5834] FS: 000055556089f380(0000) GS:ffff888125d66000(0000) knlGS:0000000000000000 [ 89.104597][ T5834] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 89.111180][ T5834] CR2: 0000563942114448 CR3: 000000007d85a000 CR4: 00000000003526f0 [ 89.119157][ T5834] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 89.127130][ T5834] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 89.135098][ T5834] Call Trace: [ 89.138378][ T5834] [ 89.141312][ T5834] rtnl_create_link+0x748/0xd10 [ 89.146175][ T5834] rtnl_newlink_create+0x25c/0xb00 [ 89.151299][ T5834] ? __pfx_aa_get_newest_label+0x10/0x10 [ 89.156944][ T5834] ? __pfx_rtnl_newlink_create+0x10/0x10 [ 89.162583][ T5834] ? rtnl_newlink+0x8db/0x1c70 [ 89.167355][ T5834] ? __pfx___mutex_lock+0x10/0x10 [ 89.172395][ T5834] ? ns_capable+0x8a/0xf0 [ 89.176742][ T5834] rtnl_newlink+0x16d6/0x1c70 [ 89.181426][ T5834] ? trace_ma_write+0x87/0x1f0 [ 89.186198][ T5834] ? __pfx_rtnl_newlink+0x10/0x10 [ 89.191250][ T5834] ? __lock_acquire+0xab9/0xd20 [ 89.196108][ T5834] ? __lock_acquire+0xab9/0xd20 [ 89.200968][ T5834] ? is_bpf_text_address+0x26/0x2b0 [ 89.206175][ T5834] ? is_bpf_text_address+0x292/0x2b0 [ 89.211466][ T5834] ? is_bpf_text_address+0x26/0x2b0 [ 89.216674][ T5834] ? kernel_text_address+0xa5/0xe0 [ 89.221794][ T5834] ? __lock_acquire+0xab9/0xd20 [ 89.226667][ T5834] ? __pfx_rtnl_newlink+0x10/0x10 [ 89.231696][ T5834] rtnetlink_rcv_msg+0x7cf/0xb70 [ 89.236652][ T5834] ? rtnetlink_rcv_msg+0x1ab/0xb70 [ 89.241774][ T5834] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 89.247248][ T5834] netlink_rcv_skb+0x208/0x470 [ 89.252040][ T5834] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 89.257505][ T5834] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 89.262806][ T5834] ? netlink_deliver_tap+0x2e/0x1b0 [ 89.268017][ T5834] ? netlink_deliver_tap+0x2e/0x1b0 [ 89.273228][ T5834] netlink_unicast+0x75b/0x8d0 [ 89.278024][ T5834] netlink_sendmsg+0x805/0xb30 [ 89.282805][ T5834] ? __pfx_netlink_sendmsg+0x10/0x10 [ 89.288096][ T5834] ? aa_sock_msg_perm+0x94/0x160 [ 89.293037][ T5834] ? bpf_lsm_socket_sendmsg+0x9/0x20 [ 89.298323][ T5834] ? __pfx_netlink_sendmsg+0x10/0x10 [ 89.303604][ T5834] __sock_sendmsg+0x219/0x270 [ 89.308286][ T5834] ____sys_sendmsg+0x505/0x830 [ 89.313051][ T5834] ? __pfx_____sys_sendmsg+0x10/0x10 [ 89.318339][ T5834] ? import_iovec+0x74/0xa0 [ 89.322854][ T5834] ___sys_sendmsg+0x21f/0x2a0 [ 89.327540][ T5834] ? __pfx____sys_sendmsg+0x10/0x10 [ 89.332745][ T5834] ? do_raw_spin_lock+0x121/0x290 [ 89.337788][ T5834] __x64_sys_sendmsg+0x19b/0x260 [ 89.342734][ T5834] ? _raw_spin_unlock_irq+0x2e/0x50 [ 89.347947][ T5834] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 89.353415][ T5834] do_syscall_64+0xfa/0x3b0 [ 89.357924][ T5834] ? lockdep_hardirqs_on+0x9c/0x150 [ 89.363124][ T5834] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 89.369188][ T5834] ? clear_bhb_loop+0x60/0xb0 [ 89.373867][ T5834] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 89.379761][ T5834] RIP: 0033:0x7fa5080a6369 [ 89.384192][ T5834] 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 [ 89.403833][ T5834] RSP: 002b:00007ffd3dfbc8b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 89.412252][ T5834] RAX: ffffffffffffffda RBX: 00007ffd3dfbca88 RCX: 00007fa5080a6369 [ 89.420225][ T5834] RDX: 0000000000000000 RSI: 0000200000000280 RDI: 0000000000000003 [ 89.428196][ T5834] RBP: 00007fa508119610 R08: 0000000000000000 R09: 00007ffd3dfbca88 [ 89.436177][ T5834] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 89.444251][ T5834] R13: 00007ffd3dfbca78 R14: 0000000000000001 R15: 0000000000000001 [ 89.452238][ T5834] [ 89.455262][ T5834] Modules linked in: [ 89.459344][ T5834] ---[ end trace 0000000000000000 ]--- [ 89.464899][ T5834] RIP: 0010:dev_set_group+0xc0/0x230 [ 89.470300][ T5834] Code: 03 43 80 3c 2f 00 74 08 48 89 df e8 4a 40 d4 f8 41 bd a8 02 00 00 4c 03 2b 4c 89 e8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 4c 89 ef e8 22 40 d4 f8 31 c0 49 83 7d 00 00 0f [ 89.490012][ T5834] RSP: 0018:ffffc9000417ee60 EFLAGS: 00010206 [ 89.496153][ T5834] RAX: 0000000000000055 RBX: ffff8880227e4008 RCX: dffffc0000000000 [ 89.504150][ T5834] RDX: 0000000000000000 RSI: 0000000055690764 RDI: ffff8880227e4000 [ 89.512284][ T5834] RBP: ffff8880227e4000 R08: 0000000000400dc0 R09: 00000000ffffffff [ 89.520298][ T5834] R10: dffffc0000000000 R11: fffffbfff1f41637 R12: 0000000000000000 [ 89.528332][ T5834] R13: 00000000000002a8 R14: 1ffff110044fc998 R15: 1ffff110044fc801 [ 89.536377][ T5834] FS: 000055556089f380(0000) GS:ffff888125c66000(0000) knlGS:0000000000000000 [ 89.545321][ T5834] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 89.551959][ T5834] CR2: 000000000045ad50 CR3: 000000007d85a000 CR4: 00000000003526f0 [ 89.559981][ T5834] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 89.568001][ T5834] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 89.576024][ T5834] Kernel panic - not syncing: Fatal exception [ 89.582483][ T5834] Kernel Offset: disabled [ 89.586814][ T5834] Rebooting in 86400 seconds..