### [CVE-2024-57841](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-57841)
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![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=blue)

### Description

In the Linux kernel, the following vulnerability has been resolved:net: fix memory leak in tcp_conn_request()If inet_csk_reqsk_queue_hash_add() return false, tcp_conn_request() willreturn without free the dst memory, which allocated in af_ops->route_req.Here is the kmemleak stack:unreferenced object 0xffff8881198631c0 (size 240):  comm "softirq", pid 0, jiffies 4299266571 (age 1802.392s)  hex dump (first 32 bytes):    00 10 9b 03 81 88 ff ff 80 98 da bc ff ff ff ff  ................    81 55 18 bb ff ff ff ff 00 00 00 00 00 00 00 00  .U..............  backtrace:    [<ffffffffb93e8d4c>] kmem_cache_alloc+0x60c/0xa80    [<ffffffffba11b4c5>] dst_alloc+0x55/0x250    [<ffffffffba227bf6>] rt_dst_alloc+0x46/0x1d0    [<ffffffffba23050a>] __mkroute_output+0x29a/0xa50    [<ffffffffba23456b>] ip_route_output_key_hash+0x10b/0x240    [<ffffffffba2346bd>] ip_route_output_flow+0x1d/0x90    [<ffffffffba254855>] inet_csk_route_req+0x2c5/0x500    [<ffffffffba26b331>] tcp_conn_request+0x691/0x12c0    [<ffffffffba27bd08>] tcp_rcv_state_process+0x3c8/0x11b0    [<ffffffffba2965c6>] tcp_v4_do_rcv+0x156/0x3b0    [<ffffffffba299c98>] tcp_v4_rcv+0x1cf8/0x1d80    [<ffffffffba239656>] ip_protocol_deliver_rcu+0xf6/0x360    [<ffffffffba2399a6>] ip_local_deliver_finish+0xe6/0x1e0    [<ffffffffba239b8e>] ip_local_deliver+0xee/0x360    [<ffffffffba239ead>] ip_rcv+0xad/0x2f0    [<ffffffffba110943>] __netif_receive_skb_one_core+0x123/0x140Call dst_release() to free the dst memory wheninet_csk_reqsk_queue_hash_add() return false in tcp_conn_request().

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/oogasawa/Utility-security
- https://github.com/w4zu/Debian_security