general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 1 PID: 29834 Comm: syz-executor.4 Not tainted 5.12.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:nla_len include/net/netlink.h:1148 [inline] RIP: 0010:nla_parse_nested_deprecated include/net/netlink.h:1231 [inline] RIP: 0010:nl802154_del_llsec_dev+0xf6/0x230 net/ieee802154/nl802154.c:1760 Code: 49 83 c5 40 4c 89 e8 48 c1 e8 03 42 80 3c 38 00 74 08 4c 89 ef e8 da 9f 9c f8 4d 8b 6d 00 49 8d 5c 24 04 4c 89 e0 48 c1 e8 03 <42> 8a 04 38 84 c0 0f 85 05 01 00 00 41 0f b7 0c 24 83 c1 fc 48 8d RSP: 0018:ffffc900178278f0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000040000 RDX: ffffc90011847000 RSI: 0000000000000186 RDI: ffffc90017827a58 RBP: ffffc90017827978 R08: ffffffff87c5bfe8 R09: fffff52002f04f1b R10: fffff52002f04f1b R11: 0000000000000000 R12: 0000000000000000 R13: ffffc90017827ae0 R14: ffff88801b27cc10 R15: dffffc0000000000 FS: 00007f0818adf700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000052d210 CR3: 0000000024717000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: genl_family_rcv_msg_doit net/netlink/genetlink.c:739 [inline] genl_family_rcv_msg net/netlink/genetlink.c:783 [inline] genl_rcv_msg+0xe4e/0x1280 net/netlink/genetlink.c:800 netlink_rcv_skb+0x190/0x3a0 net/netlink/af_netlink.c:2502 genl_rcv+0x24/0x40 net/netlink/genetlink.c:811 netlink_unicast_kernel net/netlink/af_netlink.c:1312 [inline] netlink_unicast+0x786/0x940 net/netlink/af_netlink.c:1338 netlink_sendmsg+0x9ae/0xd50 net/netlink/af_netlink.c:1927 sock_sendmsg_nosec net/socket.c:654 [inline] sock_sendmsg net/socket.c:674 [inline] ____sys_sendmsg+0x519/0x800 net/socket.c:2350 ___sys_sendmsg net/socket.c:2404 [inline] __sys_sendmsg+0x2bf/0x370 net/socket.c:2433 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x466459 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f0818adf188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000466459 RDX: 0000000000008000 RSI: 0000000020000100 RDI: 0000000000000004 RBP: 00000000004bf9fb R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60 R13: 00007ffe0d1cd3ff R14: 00007f0818adf300 R15: 0000000000022000 Modules linked in: ---[ end trace 2bafc41c1968fc17 ]--- RIP: 0010:nla_len include/net/netlink.h:1148 [inline] RIP: 0010:nla_parse_nested_deprecated include/net/netlink.h:1231 [inline] RIP: 0010:nl802154_del_llsec_dev+0xf6/0x230 net/ieee802154/nl802154.c:1760 Code: 49 83 c5 40 4c 89 e8 48 c1 e8 03 42 80 3c 38 00 74 08 4c 89 ef e8 da 9f 9c f8 4d 8b 6d 00 49 8d 5c 24 04 4c 89 e0 48 c1 e8 03 <42> 8a 04 38 84 c0 0f 85 05 01 00 00 41 0f b7 0c 24 83 c1 fc 48 8d RSP: 0018:ffffc900178278f0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000040000 RDX: ffffc90011847000 RSI: 0000000000000186 RDI: ffffc90017827a58 RBP: ffffc90017827978 R08: ffffffff87c5bfe8 R09: fffff52002f04f1b R10: fffff52002f04f1b R11: 0000000000000000 R12: 0000000000000000 R13: ffffc90017827ae0 R14: ffff88801b27cc10 R15: dffffc0000000000 FS: 00007f0818adf700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2437ade000 CR3: 0000000024717000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400