CVE-2025-37913
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2025
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
net_sched: qfq: Fix double list add in class with netem as child qdisc
In the Linux kernel, the following vulnerability has been resolved: net_sched: qfq: Fix double list add in class with netem as child qdisc As described in Gerrard's report [1], there are use cases where a netem child qdisc will make the parent qdisc's enqueue callback reentrant. In the case of qfq, there won't be a UAF, but the code will add the same classifier to the list twice, which will cause memory corruption. This patch checks whether the class was already added to the agg->active list (cl_is_active) before doing the addition to cater for the reentrant case. [1] https://lore.kernel.org/netdev/CAHcdcOm+03OD2j6R0=YHKqmy=VgJ8xEOKuP6c7mSgnp-TEJJbw@mail.gmail.com/
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 37d9cf1a3ce35de3df6f7d209bfb1f50cf188cea | affected | git | 041f410aec2c1751ee22b8b73ba05d38c3a6a602 | Unavailable | None listed |
| 37d9cf1a3ce35de3df6f7d209bfb1f50cf188cea | affected | git | 005a479540478a820c52de098e5e767e63e36f0a | Unavailable | None listed |
| 37d9cf1a3ce35de3df6f7d209bfb1f50cf188cea | affected | git | 0bf32d6fb1fcbf841bb9945570e0e2a70072c00f | Unavailable | None listed |
| 37d9cf1a3ce35de3df6f7d209bfb1f50cf188cea | affected | git | 0aa23e0856b7cedb3c88d8e3d281c212c7e4fbeb | Unavailable | None listed |
| 37d9cf1a3ce35de3df6f7d209bfb1f50cf188cea | affected | git | a43783119e01849fbf2fe8855634e8989b240cb4 | Unavailable | None listed |
| 37d9cf1a3ce35de3df6f7d209bfb1f50cf188cea | affected | git | 53bc0b55178bd59bdd4bcd16349505cabf54b1a2 | Unavailable | None listed |
| 37d9cf1a3ce35de3df6f7d209bfb1f50cf188cea | affected | git | 370218e8ce711684acc4cdd3cc3c6dd7956bc165 | Unavailable | None listed |
| 37d9cf1a3ce35de3df6f7d209bfb1f50cf188cea | affected | git | f139f37dcdf34b67f5bf92bc8e0f7f6b3ac63aa4 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.0 | Unavailable | None listed |
| 5.4.294 | unaffected | semver | Unavailable | 5.4.* | None listed |
| 5.10.238 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.182 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.138 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.90 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.28 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.14.6 | unaffected | semver | Unavailable | 6.14.* | None listed |
| 6.15 | unaffected | original_commit_for_fix | Unavailable | * | None listed |