CVE-2022-50865 - CVE House
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Status published Unknown CVE-2022-50865

tcp: fix a signed-integer-overflow bug in tcp_add_backlog()

Vulnerability Description

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

Linux
Vulnerable Versions:
c9c3321257e1b95be9b375f811fb250162af8d39, 4.9, 0, 5.4.278, 5.10.153, 5.15.77, 6.0.7, 6.1

Timeline

Official Publish: December 30th, 2025
Last Modified: June 16th, 2026
Added to House: July 21st, 2026

CVSS Vectors

No vector data available

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.