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CVE-2022-49325 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: tcp: add accessors to read/set tp->snd_cwnd We had various bugs over the years with code breaking the assumption that tp->snd_cwnd is greater than zero. Lately, syzbot reported the WARN_ON_ONCE(!tp->prior_cwnd) added in commit 8b8a321ff72c ("tcp: fix zero cwnd in tcp_cwnd_reduction") can trigger, and without a repro we would have to spend considerable time finding the bug. Instead of complaining too late, we want to catch where and when tp->snd_cwnd is set to an illegal value.


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

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Hyperlink Resource
https://git.kernel.org/stable/c/3308676ec525901bf1656014003c443a60730a04
https://git.kernel.org/stable/c/40570375356c874b1578e05c1dcc3ff7c1322dbe
https://git.kernel.org/stable/c/41e191fe72282e193a7744e2fc1786b23156c9e4
https://git.kernel.org/stable/c/5aba0ad44fb4a7fb78c5076c313456de199a3c29

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2022-49325
NVD Published Date:
02/26/2025
NVD Last Modified:
02/26/2025
Source:
kernel.org