CVE-2022-50865

Advisory lineage Upstream: 0 Downstream: 14
Deferred
Published: 30 Dec 2025, 12:15
Last modified:11 May 2026, 19:26

Vulnerability Summary

Overall Risk (default)
minimal
0/100
CVSS Score
No data
EPSS Score
0.02% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

30 Dec 2025, 12:15
Published
Vulnerability first disclosed
11 May 2026, 19:26
Last Modified
Vulnerability information updated

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.

EPSS Trends

Current EPSS score: 0.02%• Percentile: 6%

Affected Systems

  • linux•linux

    ≥ c9c3321257e1b95be9b375f811fb250162af8d39, < 9d04b4d0feee12bce6bfe37f30d8e953d3c30368 | ≥ c9c3321257e1b95be9b375f811fb250162af8d39, < 4f23cb2be530785db284a685d1b1c30224d8a538 | ≥ c9c3321257e1b95be9b375f811fb250162af8d39, < a85d39f14aa8a71e29cfb5eb5de02878a8779898 | ≥ c9c3321257e1b95be9b375f811fb250162af8d39, < 28addf029417d53b1df062b4c87feb7bc033cb5f | ≥ c9c3321257e1b95be9b375f811fb250162af8d39, < ec791d8149ff60c40ad2074af3b92a39c916a03f | 4.9

References (5)