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: 15300 Comm: syz-executor.2 Not tainted 5.12.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:nla_get_le64 include/net/netlink.h:1643 [inline] RIP: 0010:ieee802154_llsec_parse_dev_addr+0x263/0x370 net/ieee802154/nl802154.c:1314 Code: 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 97 8b d1 f8 48 8b 5c 24 50 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 04 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 ee 00 00 00 48 8d 7d 08 48 8b 5b 04 48 b8 00 00 RSP: 0018:ffffc9000f0bf378 EFLAGS: 00010247 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90013eeb000 RDX: 0000000000000000 RSI: ffffffff88a33719 RDI: 0000000000000004 RBP: ffffc9000f0bf560 R08: ffffffff8a8d2760 R09: ffffffff88a336b1 R10: 0000000000000002 R11: 0000000000000003 R12: 1ffff92001e17e6f R13: 0000000000000000 R14: ffff888026d29480 R15: ffff888026d29478 FS: 00007f568e92f700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000052e330 CR3: 000000005ceab000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ieee802154_llsec_parse_key_id+0x343/0x410 net/ieee802154/nl802154.c:1349 nl802154_del_llsec_devkey+0x23b/0x3d0 net/ieee802154/nl802154.c:1968 genl_family_rcv_msg_doit+0x228/0x320 net/netlink/genetlink.c:739 genl_family_rcv_msg net/netlink/genetlink.c:783 [inline] genl_rcv_msg+0x328/0x580 net/netlink/genetlink.c:800 netlink_rcv_skb+0x153/0x420 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+0x533/0x7d0 net/netlink/af_netlink.c:1338 netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1927 sock_sendmsg_nosec net/socket.c:654 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:674 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2350 ___sys_sendmsg+0xf3/0x170 net/socket.c:2404 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2433 do_syscall_64+0x3a/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:00007f568e92f188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665d9 RDX: 0000000000000800 RSI: 0000000020000300 RDI: 0000000000000004 RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffe60043dcf R14: 00007f568e92f300 R15: 0000000000022000 Modules linked in: ---[ end trace 872d39079fe9f774 ]--- RIP: 0010:nla_get_le64 include/net/netlink.h:1643 [inline] RIP: 0010:ieee802154_llsec_parse_dev_addr+0x263/0x370 net/ieee802154/nl802154.c:1314 Code: 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 97 8b d1 f8 48 8b 5c 24 50 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 04 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 ee 00 00 00 48 8d 7d 08 48 8b 5b 04 48 b8 00 00 RSP: 0018:ffffc9000f0bf378 EFLAGS: 00010247 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90013eeb000 RDX: 0000000000000000 RSI: ffffffff88a33719 RDI: 0000000000000004 RBP: ffffc9000f0bf560 R08: ffffffff8a8d2760 R09: ffffffff88a336b1 R10: 0000000000000002 R11: 0000000000000003 R12: 1ffff92001e17e6f R13: 0000000000000000 R14: ffff888026d29480 R15: ffff888026d29478 FS: 00007f568e92f700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000023f6708 CR3: 000000005ceab000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400