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: 13393 Comm: syz-executor.2 Not tainted 5.13.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:nla_get_le16 include/net/netlink.h:1599 [inline] RIP: 0010:ieee802154_llsec_parse_dev_addr net/ieee802154/nl802154.c:1311 [inline] RIP: 0010:ieee802154_llsec_parse_key_id+0x5eb/0x810 net/ieee802154/nl802154.c:1349 Code: 20 00 0f 84 75 fd ff ff 48 89 df e8 3f df 3a f8 e9 68 fd ff ff e8 a5 d6 f2 f7 48 8b 5c 24 30 48 83 c3 04 48 89 d8 48 c1 e8 03 <42> 8a 04 20 84 c0 0f 85 d1 01 00 00 44 0f b7 3b 48 8b 44 24 18 48 RSP: 0018:ffffc9000ab2f200 EFLAGS: 00010247 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000040000 RDX: ffffc9000dc7f000 RSI: 0000000000000212 RDI: 0000000000000213 RBP: ffffc9000ab2f370 R08: 0000000000000001 R09: ffffffff898c33ca R10: 0000000000000002 R11: ffff888030ed0000 R12: dffffc0000000000 R13: ffffc9000ab2f2b0 R14: 1ffff92001565e48 R15: ffffc9000ab2f260 FS: 00007f3cc3499700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000052e370 CR3: 000000001e7c4000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: nl802154_del_llsec_key+0x250/0x360 net/ieee802154/nl802154.c:1619 genl_family_rcv_msg_doit net/netlink/genetlink.c:739 [inline] genl_family_rcv_msg net/netlink/genetlink.c:783 [inline] genl_rcv_msg+0xfb4/0x13c0 net/netlink/genetlink.c:800 netlink_rcv_skb+0x1f0/0x460 net/netlink/af_netlink.c:2504 genl_rcv+0x24/0x40 net/netlink/genetlink.c:811 netlink_unicast_kernel net/netlink/af_netlink.c:1314 [inline] netlink_unicast+0x7de/0x9b0 net/netlink/af_netlink.c:1340 netlink_sendmsg+0xaa6/0xe90 net/netlink/af_netlink.c:1929 sock_sendmsg_nosec net/socket.c:654 [inline] sock_sendmsg net/socket.c:674 [inline] ____sys_sendmsg+0x5a2/0x900 net/socket.c:2350 ___sys_sendmsg net/socket.c:2404 [inline] __sys_sendmsg+0x319/0x400 net/socket.c:2433 do_syscall_64+0x3f/0xb0 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665d9 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:00007f3cc3499188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665d9 RDX: 0000000024040000 RSI: 0000000020000780 RDI: 0000000000000004 RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007fffa16ed71f R14: 00007f3cc3499300 R15: 0000000000022000 Modules linked in: ---[ end trace 346c45f6a1a2f8d4 ]--- RIP: 0010:nla_get_le16 include/net/netlink.h:1599 [inline] RIP: 0010:ieee802154_llsec_parse_dev_addr net/ieee802154/nl802154.c:1311 [inline] RIP: 0010:ieee802154_llsec_parse_key_id+0x5eb/0x810 net/ieee802154/nl802154.c:1349 Code: 20 00 0f 84 75 fd ff ff 48 89 df e8 3f df 3a f8 e9 68 fd ff ff e8 a5 d6 f2 f7 48 8b 5c 24 30 48 83 c3 04 48 89 d8 48 c1 e8 03 <42> 8a 04 20 84 c0 0f 85 d1 01 00 00 44 0f b7 3b 48 8b 44 24 18 48 RSP: 0018:ffffc9000ab2f200 EFLAGS: 00010247 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000040000 RDX: ffffc9000dc7f000 RSI: 0000000000000212 RDI: 0000000000000213 RBP: ffffc9000ab2f370 R08: 0000000000000001 R09: ffffffff898c33ca R10: 0000000000000002 R11: ffff888030ed0000 R12: dffffc0000000000 R13: ffffc9000ab2f2b0 R14: 1ffff92001565e48 R15: ffffc9000ab2f260 FS: 00007f3cc3499700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff9b33e5028 CR3: 000000001e7c4000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400