nla_parse: 2 callbacks suppressed netlink: 32 bytes leftover after parsing attributes in process `syz-executor.0'. kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access FAT-fs (loop2): bogus number of reserved sectors general protection fault: 0000 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 0 PID: 12335 Comm: syz-executor.0 Not tainted 4.14.203-syzkaller #0 FAT-fs (loop2): Can't find a valid FAT filesystem Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff888096eb0000 task.stack: ffff88805dea0000 RIP: 0010:__tcf_idr_release+0x15e/0x260 net/sched/act_api.c:99 RSP: 0018:ffff88805dea74f0 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90005eb3000 RDX: 0000000000000009 RSI: ffffffff85edd269 RDI: 0000000000000048 RBP: ffff88805cf077a0 R08: ffffffff8b9bc4c8 R09: 0000000000000001 R10: 0000000000000000 R11: ffff888096eb0000 R12: 0000000000000000 R13: 00000000813cd0bc R14: 0000000000000000 R15: 0000000000000000 FS: 00007f7d4e950700(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000064710000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: tcf_action_destroy+0xed/0x170 net/sched/act_api.c:527 tcf_action_init+0x294/0x400 net/sched/act_api.c:769 tcf_action_add net/sched/act_api.c:1079 [inline] tc_ctl_action+0x2e3/0x50f net/sched/act_api.c:1131 rtnetlink_rcv_msg+0x3be/0xb10 net/core/rtnetlink.c:4316 netlink_rcv_skb+0x125/0x390 net/netlink/af_netlink.c:2433 netlink_unicast_kernel net/netlink/af_netlink.c:1287 [inline] netlink_unicast+0x437/0x610 net/netlink/af_netlink.c:1313 netlink_sendmsg+0x62e/0xb80 net/netlink/af_netlink.c:1878 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 ___sys_sendmsg+0x6c8/0x800 net/socket.c:2062 __sys_sendmsg+0xa3/0x120 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x27/0x40 net/socket.c:2103 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x45deb9 RSP: 002b:00007f7d4e94fc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 000000000002e680 RCX: 000000000045deb9 RDX: 0000000000000000 RSI: 0000000020002980 RDI: 0000000000000003 RBP: 000000000118bf60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c R13: 00007ffe6de7610f R14: 00007f7d4e9509c0 R15: 000000000118bf2c Code: fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 fc 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 65 00 49 8d 7c 24 48 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 c7 00 00 00 4d 8b 64 24 48 4d 85 e4 74 0e e8 RIP: __tcf_idr_release+0x15e/0x260 net/sched/act_api.c:99 RSP: ffff88805dea74f0 ---[ end trace c8510dadc86ef5b0 ]---