CVE-2022-50865

In the Linux kernel, the following vulnerability has been resolved: tcp: fix a signed-integer-overflow bug in tcp_add_backlog() The type of sk_rcvbuf and sk_sndbuf in struct sock is int, and in tcp_add_backlog(), the variable limit is caculated by adding sk_rcvbuf, sk_sndbuf and 64 * 1024, it may exceed the max value of int and overflow. This patch reduces the limit budget by halving the sndbuf to solve this issue since ACK packets are much smaller than the payload.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/28addf029417d53b1df062b4c87feb7bc033cb5f
https://git.kernel.org/stable/c/4f23cb2be530785db284a685d1b1c30224d8a538
https://git.kernel.org/stable/c/9d04b4d0feee12bce6bfe37f30d8e953d3c30368
https://git.kernel.org/stable/c/a85d39f14aa8a71e29cfb5eb5de02878a8779898
https://git.kernel.org/stable/c/ec791d8149ff60c40ad2074af3b92a39c916a03f

Configurations

No configuration.

History

No history.

Information

Published : 2025-12-30 13:16

Updated : 2026-08-04 10:18

NVD link : CVE-2022-50865

Mitre link : CVE-2022-50865

CVE.ORG link : CVE-2022-50865

JSON object : View

Products Affected

No product.

CWE

No CWE.

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