netlink: 215 bytes leftover after parsing attributes in process `syz-executor.3'. 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: 0 PID: 28286 Comm: syz-executor.3 Not tainted 5.0.0-rc6-next-20190213 #34 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__lock_acquire+0x956/0x4790 kernel/locking/lockdep.c:3197 Code: 28 00 00 00 0f 85 7d 26 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 48 b8 00 00 00 00 00 fc ff df 4c 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 36 27 00 00 49 81 3b 20 25 9b 89 0f 84 8d f7 ff RSP: 0018:ffff88804bdf7180 EFLAGS: 00010006 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 000000000000000c RSI: 0000000000000000 RDI: 0000000000000060 RBP: ffff88804bdf7350 R08: 0000000000000001 R09: 0000000000000001 R10: ffff88804bdf7570 R11: 0000000000000060 R12: ffff8880595aa580 R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000 FS: 00007fd18b660700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b33b24000 CR3: 00000000785b3000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000106000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3829 __mutex_lock_common kernel/locking/mutex.c:925 [inline] __mutex_lock+0xf7/0x1310 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 tc_ctl_chain+0x42f/0x11a0 net/sched/cls_api.c:2812 rtnetlink_rcv_msg+0x465/0xb00 net/core/rtnetlink.c:5192 netlink_rcv_skb+0x17a/0x460 net/netlink/af_netlink.c:2485 rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:5210 netlink_unicast_kernel net/netlink/af_netlink.c:1310 [inline] netlink_unicast+0x536/0x720 net/netlink/af_netlink.c:1336 netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1925 sock_sendmsg_nosec net/socket.c:621 [inline] sock_sendmsg+0xdd/0x130 net/socket.c:631 ___sys_sendmsg+0x806/0x930 net/socket.c:2136 __sys_sendmsg+0x105/0x1d0 net/socket.c:2174 __do_sys_sendmsg net/socket.c:2183 [inline] __se_sys_sendmsg net/socket.c:2181 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2181 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457e39 Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fd18b65fc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457e39 RDX: 0000000000000000 RSI: 0000000020002b00 RDI: 0000000000000003 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd18b6606d4 R13: 00000000004c5417 R14: 00000000004d9228 R15: 00000000ffffffff Modules linked in: ---[ end trace 162d6b84bdd826f3 ]--- RIP: 0010:__lock_acquire+0x956/0x4790 kernel/locking/lockdep.c:3197 Code: 28 00 00 00 0f 85 7d 26 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 48 b8 00 00 00 00 00 fc ff df 4c 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 36 27 00 00 49 81 3b 20 25 9b 89 0f 84 8d f7 ff RSP: 0018:ffff88804bdf7180 EFLAGS: 00010006 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 000000000000000c RSI: 0000000000000000 RDI: 0000000000000060 RBP: ffff88804bdf7350 R08: 0000000000000001 R09: 0000000000000001 R10: ffff88804bdf7570 R11: 0000000000000060 R12: ffff8880595aa580 R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000 FS: 00007fd18b660700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b33b24000 CR3: 00000000785b3000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000106000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400