Answer in brief
CVE-2025-38108 records a High severity (CVSS 7.8) vulnerability in net_sched: red: fix a race in __red_change(). 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 7.8. 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:debian:debian_linux:11.0:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.16:rc1:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=0c8d13ac96070000da33f394f45e9c19638483c5 <2790c4ec481be45a80948d059cd7c9a06bc37493 || >=0c8d13ac96070000da33f394f45e9c19638483c5 <a1bf6a4e9264a685b0e642994031f9c5aad72414 || >=0c8d13ac96070000da33f394f45e9c19638483c5 <110a47efcf23438ff8d31dbd9c854fae2a48bf98 || >=0c8d13ac96070000da33f394f45e9c19638483c5 <f569984417a4e12c67366e69bdcb752970de921d || >=0c8d13ac96070000da33f394f45e9c19638483c5 <2a71924ca4af59ffc00f0444732b6cd54b153d0e || >=0c8d13ac96070000da33f394f45e9c19638483c5 <4b755305b2b0618e857fdadb499365b5f2e478d1 || >=0c8d13ac96070000da33f394f45e9c19638483c5 <444ad445df5496a785705019268a8a84b84484bb || >=0c8d13ac96070000da33f394f45e9c19638483c5 <85a3e0ede38450ea3053b8c45d28cf55208409b8 | 2790c4ec481be45a80948d059cd7c9a06bc37493, a1bf6a4e9264a685b0e642994031f9c5aad72414, 110a47efcf23438ff8d31dbd9c854fae2a48bf98, f569984417a4e12c67366e69bdcb752970de921d, 2a71924ca4af59ffc00f0444732b6cd54b153d0e, 4b755305b2b0618e857fdadb499365b5f2e478d1, 444ad445df5496a785705019268a8a84b84484bb, 85a3e0ede38450ea3053b8c45d28cf55208409b8 |
| Linux/Linuxgeneric | 5.0 | Not reported |
Published upstream
Jul 3, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: net_sched: red: fix a race in __red_change() Gerrard Tai reported a race condition in RED, whenever SFQ perturb timer fires at the wrong time. The race is as follows: CPU 0 CPU 1 [1]: lock root [2]: qdisc_tree_flush_backlog() [3]: unlock root | | [5]: lock root | [6]: rehash | [7]: qdisc_tree_reduce_backlog() | [4]: qdisc_put() This can be abused to underflow a parent's qlen. Calling qdisc_purge_queue() instead of qdisc_tree_flush_backlog() should fix the race, because all packets will be purged from the qdisc before releasing the lock.
Quoted source text, attributed separately from HOL analysis.