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 CPU: 1 PID: 8072 Comm: syz-executor044 Not tainted 4.19.172-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:nla_len syzkaller/managers/linux-4-19/kernel/./include/net/netlink.h:706 [inline] RIP: 0010:nla_parse_nested syzkaller/managers/linux-4-19/kernel/./include/net/netlink.h:765 [inline] RIP: 0010:nl802154_del_llsec_devkey+0x163/0x380 syzkaller/managers/linux-4-19/kernel/net/ieee802154/nl802154.c:1943 Code: 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 ce 01 00 00 48 8b 93 20 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 4f RSP: 0018:ffff8880b2a775e8 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff88823aabb800 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff87c50ffd RDI: ffff88823aabb920 RBP: 1ffff1101654eebf R08: 0000000000000001 R09: ffff8880b2a77920 R10: 0000000000000005 R11: 0000000000000001 R12: ffff8880ab6a36c0 R13: ffff8880ab64d0d0 R14: ffff88823aabb800 R15: ffffffff89cf57c0 FS: 00000000017ad300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000408 CR3: 00000000aae1d000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: genl_family_rcv_msg+0x642/0xc40 syzkaller/managers/linux-4-19/kernel/net/netlink/genetlink.c:602 genl_rcv_msg+0xbf/0x160 syzkaller/managers/linux-4-19/kernel/net/netlink/genetlink.c:627 netlink_rcv_skb+0x160/0x440 syzkaller/managers/linux-4-19/kernel/net/netlink/af_netlink.c:2455 genl_rcv+0x24/0x40 syzkaller/managers/linux-4-19/kernel/net/netlink/genetlink.c:638 netlink_unicast_kernel syzkaller/managers/linux-4-19/kernel/net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x4d5/0x690 syzkaller/managers/linux-4-19/kernel/net/netlink/af_netlink.c:1344 netlink_sendmsg+0x6bb/0xc40 syzkaller/managers/linux-4-19/kernel/net/netlink/af_netlink.c:1909 sock_sendmsg_nosec syzkaller/managers/linux-4-19/kernel/net/socket.c:622 [inline] sock_sendmsg+0xc3/0x120 syzkaller/managers/linux-4-19/kernel/net/socket.c:632 ___sys_sendmsg+0x7bb/0x8e0 syzkaller/managers/linux-4-19/kernel/net/socket.c:2115 __sys_sendmsg syzkaller/managers/linux-4-19/kernel/net/socket.c:2153 [inline] __do_sys_sendmsg syzkaller/managers/linux-4-19/kernel/net/socket.c:2162 [inline] __se_sys_sendmsg syzkaller/managers/linux-4-19/kernel/net/socket.c:2160 [inline] __x64_sys_sendmsg+0x132/0x220 syzkaller/managers/linux-4-19/kernel/net/socket.c:2160 do_syscall_64+0xf9/0x620 syzkaller/managers/linux-4-19/kernel/arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x43f8a9 Code: 28 c3 e8 5a 14 00 00 66 2e 0f 1f 84 00 00 00 00 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 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffc0ca290c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00000000004004a0 RCX: 000000000043f8a9 RDX: 0000000024000044 RSI: 00000000200007c0 RDI: 0000000000000004 RBP: 0000000000403310 R08: 00000000004004a0 R09: 00000000004004a0 R10: 0000000000000006 R11: 0000000000000246 R12: 00000000004033a0 R13: 0000000000000000 R14: 00000000004ad018 R15: 00000000004004a0 Modules linked in: ---[ end trace 4306c58d85867916 ]--- RIP: 0010:nla_len syzkaller/managers/linux-4-19/kernel/./include/net/netlink.h:706 [inline] RIP: 0010:nla_parse_nested syzkaller/managers/linux-4-19/kernel/./include/net/netlink.h:765 [inline] RIP: 0010:nl802154_del_llsec_devkey+0x163/0x380 syzkaller/managers/linux-4-19/kernel/net/ieee802154/nl802154.c:1943 Code: 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 ce 01 00 00 48 8b 93 20 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 4f RSP: 0018:ffff8880b2a775e8 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff88823aabb800 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff87c50ffd RDI: ffff88823aabb920 RBP: 1ffff1101654eebf R08: 0000000000000001 R09: ffff8880b2a77920 R10: 0000000000000005 R11: 0000000000000001 R12: ffff8880ab6a36c0 R13: ffff8880ab64d0d0 R14: ffff88823aabb800 R15: ffffffff89cf57c0 FS: 00000000017ad300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff37343a6c0 CR3: 00000000aae1d000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400