general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 0 PID: 2850 Comm: syz-executor.1 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_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+0x512/0x710 net/ieee802154/nl802154.c:1349 Code: 38 00 0f 84 ab fd ff ff 48 89 df e8 38 03 9c f8 e9 9e fd ff ff e8 de 13 58 f8 48 8b 5c 24 08 48 83 c3 04 48 89 d8 48 c1 e8 03 <42> 8a 04 38 84 c0 0f 85 ac 01 00 00 44 0f b7 33 49 8d 5d 10 48 89 RSP: 0018:ffffc9000232f820 EFLAGS: 00010247 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000040000 RDX: ffffc9000b052000 RSI: 00000000000001f0 RDI: 00000000000001f1 RBP: ffffc9000232f8d8 R08: 0000000000000001 R09: ffffffff8921077c R10: 0000000000000002 R11: ffff88802f8d3880 R12: 1ffff92000465f21 R13: ffffc9000232f908 R14: ffff88802256b802 R15: dffffc0000000000 FS: 00007f0bbed5c700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000542978 CR3: 000000008de49000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: nl802154_set_llsec_params+0x1af/0x450 net/ieee802154/nl802154.c:1407 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:00007f0bbed5c188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000466459 RDX: 0000000000000000 RSI: 0000000020000600 RDI: 0000000000000006 RBP: 00000000004bf9fb R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60 R13: 00007ffea3bfe08f R14: 00007f0bbed5c300 R15: 0000000000022000 Modules linked in: ---[ end trace 0dafd893512e4d50 ]--- 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+0x512/0x710 net/ieee802154/nl802154.c:1349 Code: 38 00 0f 84 ab fd ff ff 48 89 df e8 38 03 9c f8 e9 9e fd ff ff e8 de 13 58 f8 48 8b 5c 24 08 48 83 c3 04 48 89 d8 48 c1 e8 03 <42> 8a 04 38 84 c0 0f 85 ac 01 00 00 44 0f b7 33 49 8d 5d 10 48 89 RSP: 0018:ffffc9000232f820 EFLAGS: 00010247 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000040000 RDX: ffffc9000b052000 RSI: 00000000000001f0 RDI: 00000000000001f1 RBP: ffffc9000232f8d8 R08: 0000000000000001 R09: ffffffff8921077c R10: 0000000000000002 R11: ffff88802f8d3880 R12: 1ffff92000465f21 R13: ffffc9000232f908 R14: ffff88802256b802 R15: dffffc0000000000 FS: 00007f0bbed5c700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000540198 CR3: 000000008de49000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400