kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 1 PID: 7963 Comm: syz-executor309 Not tainted 4.14.218-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff888097934440 task.stack: ffff8880a0918000 RIP: 0010:nla_len syzkaller/managers/linux-4-14/kernel/./include/net/netlink.h:706 [inline] RIP: 0010:nla_parse_nested syzkaller/managers/linux-4-14/kernel/./include/net/netlink.h:765 [inline] RIP: 0010:nl802154_add_llsec_key+0x1e7/0x510 syzkaller/managers/linux-4-14/kernel/net/ieee802154/nl802154.c:1565 RSP: 0018:ffff8880a091f610 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff88823a05ba80 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff8880a091f850 RDI: ffff88823a05bba8 RBP: 1ffff11014123ec4 R08: 0000000000000001 R09: ffff8880a091f990 R10: ffff8880a091f6af R11: ffff888097934440 R12: ffff88823829b2c0 R13: ffff8880abb10e90 R14: ffffffff886f1c40 R15: ffff88809656c300 FS: 0000000001570300(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000200006c8 CR3: 000000009df73000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: genl_family_rcv_msg+0x572/0xb20 syzkaller/managers/linux-4-14/kernel/net/netlink/genetlink.c:600 genl_rcv_msg+0xaf/0x140 syzkaller/managers/linux-4-14/kernel/net/netlink/genetlink.c:625 netlink_rcv_skb+0x125/0x390 syzkaller/managers/linux-4-14/kernel/net/netlink/af_netlink.c:2433 genl_rcv+0x24/0x40 syzkaller/managers/linux-4-14/kernel/net/netlink/genetlink.c:636 netlink_unicast_kernel syzkaller/managers/linux-4-14/kernel/net/netlink/af_netlink.c:1287 [inline] netlink_unicast+0x437/0x610 syzkaller/managers/linux-4-14/kernel/net/netlink/af_netlink.c:1313 netlink_sendmsg+0x62e/0xb80 syzkaller/managers/linux-4-14/kernel/net/netlink/af_netlink.c:1878 sock_sendmsg_nosec syzkaller/managers/linux-4-14/kernel/net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 syzkaller/managers/linux-4-14/kernel/net/socket.c:656 ___sys_sendmsg+0x6c8/0x800 syzkaller/managers/linux-4-14/kernel/net/socket.c:2062 __sys_sendmsg+0xa3/0x120 syzkaller/managers/linux-4-14/kernel/net/socket.c:2096 SYSC_sendmsg syzkaller/managers/linux-4-14/kernel/net/socket.c:2107 [inline] SyS_sendmsg+0x27/0x40 syzkaller/managers/linux-4-14/kernel/net/socket.c:2103 do_syscall_64+0x1d5/0x640 syzkaller/managers/linux-4-14/kernel/arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x43f8a9 RSP: 002b:00007ffdee038f68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00000000004004a0 RCX: 000000000043f8a9 RDX: 0000000000000000 RSI: 0000000020000a00 RDI: 0000000000000004 RBP: 0000000000403310 R08: 00000000004004a0 R09: 00000000004004a0 R10: 0000000000000003 R11: 0000000000000246 R12: 00000000004033a0 R13: 0000000000000000 R14: 00000000004ad018 R15: 00000000004004a0 Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 16 03 00 00 48 8b 93 28 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 d1 48 c1 e9 03 <0f> b6 0c 01 48 89 d0 83 e0 07 83 c0 01 38 c8 7c 08 84 c9 0f 85 RIP: nla_len syzkaller/managers/linux-4-14/kernel/./include/net/netlink.h:706 [inline] RSP: ffff8880a091f610 RIP: nla_parse_nested syzkaller/managers/linux-4-14/kernel/./include/net/netlink.h:765 [inline] RSP: ffff8880a091f610 RIP: nl802154_add_llsec_key+0x1e7/0x510 syzkaller/managers/linux-4-14/kernel/net/ieee802154/nl802154.c:1565 RSP: ffff8880a091f610 ---[ end trace ba47e7790e7d8570 ]---