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Vulnerability Details CVE-2022-49325

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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 3.8%
CVSS Severity
CVSS v3 Score 5.5
Products affected by CVE-2022-49325


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