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CVE-2024-57841— net: fix memory leak in tcp_conn_request()

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于tcp_conn_request函数内存泄漏。

AI Predicted 5.3 Difficulty: Easy EPSS 0.22% · P12

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking

Affected Version Matrix 17

VendorProduct Version RangeStatus
Linux Linux 527bec1f56ac7a2fceb8eb77eb0fc2678ecba394< 9d38959677291552d1b0ed2689a540af279b5bf8 affected
c14f3c3793f7a785763e353df7fc40426187f832< de3f999bf8aee16e9da1c1224191abdc69e97c9d affected
fdae4d139f4778b20a40c60705c53f5f146459b5< 2af69905180b3fea12f9c1db374b153a06977021 affected
ff46e3b4421923937b7f6e44ffcd3549a074f321< b0b190218c78d8aeecfba36ea3a90063b3ede52d affected
ff46e3b4421923937b7f6e44ffcd3549a074f321< 4f4aa4aa28142d53f8b06585c478476cfe325cfc affected
360892e60710427229fc1f7bb2218cf4d578229b affected
5.15.162< 5.15.176 affected
6.1.97< 6.1.124 affected
… +9 more rows
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I. Basic Information for CVE-2024-57841

Vulnerability Information
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Vulnerability Title
net: fix memory leak in tcp_conn_request()
Source: CVE Program / CVE List V5
Vulnerability 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() will return 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+0x123/0x140 Call dst_release() to free the dst memory when inet_csk_reqsk_queue_hash_add() return false in tcp_conn_request().
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于tcp_conn_request函数内存泄漏。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 527bec1f56ac7a2fceb8eb77eb0fc2678ecba394 ~ 9d38959677291552d1b0ed2689a540af279b5bf8 -
Linux Linux 6.10 -

II. Public POCs for CVE-2024-57841

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III. Intelligence Information for CVE-2024-57841

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Patches & Fixes for CVE-2024-57841 (5)

Same Patch Batch · Linux · 2025-01-15 · 32 CVEs total

CVE-2024-57882 9.8 CRITICAL mptcp: fix TCP options overflow.
CVE-2024-36476 9.8 CRITICAL RDMA/rtrs: Ensure 'ib_sge list' is accessible
CVE-2024-57802 9.4 CRITICAL netrom: check buffer length before accessing it
CVE-2025-21629 8.2 HIGH net: reenable NETIF_F_IPV6_CSUM offload for BIG TCP packets
CVE-2024-57883 7.8 HIGH mm: hugetlb: independent PMD page table shared count
CVE-2024-57857 7.8 HIGH RDMA/siw: Remove direct link to net_device
CVE-2024-57801 7.8 HIGH net/mlx5e: Skip restore TC rules for vport rep without loaded flag
CVE-2024-57795 7.8 HIGH RDMA/rxe: Remove the direct link to net_device
CVE-2024-39282 7.8 HIGH net: wwan: t7xx: Fix FSM command timeout issue
CVE-2024-57896 7.8 HIGH btrfs: flush delalloc workers queue before stopping cleaner kthread during unmount
CVE-2024-57893 7.8 HIGH ALSA: seq: oss: Fix races at processing SysEx messages
CVE-2024-57887 7.8 HIGH drm: adv7511: Fix use-after-free in adv7533_attach_dsi()
CVE-2024-57899 7.6 HIGH wifi: mac80211: fix mbss changed flags corruption on 32 bit systems
CVE-2024-57902 7.3 HIGH af_packet: fix vlan_get_tci() vs MSG_PEEK
CVE-2024-57901 7.3 HIGH af_packet: fix vlan_get_protocol_dgram() vs MSG_PEEK
CVE-2024-57895 7.1 HIGH ksmbd: set ATTR_CTIME flags when setting mtime
CVE-2024-57884 mm: vmscan: account for free pages to prevent infinite Loop in throttle_direct_reclaim()
CVE-2024-57892 ocfs2: fix slab-use-after-free due to dangling pointer dqi_priv
CVE-2024-57844 drm/xe: Fix fault on fd close after unbind
CVE-2024-57885 mm/kmemleak: fix sleeping function called from invalid context at print message

Showing top 20 of 32 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-57841

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