Answer in brief
CVE-2022-49325 records a High severity (CVSS 7.5) vulnerability in tcp: add accessors to read/set tp->snd_cwnd. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | 2.6.17 | Not reported |
| Linux/Linuxgeneric | >=5d424d5a674f782d0659a3b66d951f412901faee <3308676ec525901bf1656014003c443a60730a04 || >=5d424d5a674f782d0659a3b66d951f412901faee <5aba0ad44fb4a7fb78c5076c313456de199a3c29 || >=5d424d5a674f782d0659a3b66d951f412901faee <41e191fe72282e193a7744e2fc1786b23156c9e4 || >=5d424d5a674f782d0659a3b66d951f412901faee <40570375356c874b1578e05c1dcc3ff7c1322dbe | 3308676ec525901bf1656014003c443a60730a04, 5aba0ad44fb4a7fb78c5076c313456de199a3c29, 41e191fe72282e193a7744e2fc1786b23156c9e4, 40570375356c874b1578e05c1dcc3ff7c1322dbe |
Published upstream
Feb 26, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
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.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2022-49325 records a High severity (CVSS 7.5) vulnerability in tcp: add accessors to read/set tp->snd_cwnd. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | 2.6.17 | Not reported |
| Linux/Linuxgeneric | >=5d424d5a674f782d0659a3b66d951f412901faee <3308676ec525901bf1656014003c443a60730a04 || >=5d424d5a674f782d0659a3b66d951f412901faee <5aba0ad44fb4a7fb78c5076c313456de199a3c29 || >=5d424d5a674f782d0659a3b66d951f412901faee <41e191fe72282e193a7744e2fc1786b23156c9e4 || >=5d424d5a674f782d0659a3b66d951f412901faee <40570375356c874b1578e05c1dcc3ff7c1322dbe | 3308676ec525901bf1656014003c443a60730a04, 5aba0ad44fb4a7fb78c5076c313456de199a3c29, 41e191fe72282e193a7744e2fc1786b23156c9e4, 40570375356c874b1578e05c1dcc3ff7c1322dbe |
Published upstream
Feb 26, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
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.
Quoted source text, attributed separately from HOL analysis.