Answer in brief
CVE-2026-89954 records a High severity (CVSS 8.0) vulnerability in mtd: afs: validate v2 image info bounds. 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 8.0. 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.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=b7cf5e2830bbb128699d7635ce8404b7f605bc95 <1bec05a68414cf8d0cab6cb42445b8603f32ffc4 || >=b7cf5e2830bbb128699d7635ce8404b7f605bc95 <3ad8ff12fd44b08af9212ac4883a7e29d2ab7348 || >=b7cf5e2830bbb128699d7635ce8404b7f605bc95 <875daa3c750814ff2e2dc050239c390048f0bcd0 || >=b7cf5e2830bbb128699d7635ce8404b7f605bc95 <da740539e8f370767317e24615349b9342a6e773 || >=b7cf5e2830bbb128699d7635ce8404b7f605bc95 <1edea8900ca3e405c1421d8b5c29f97107874f72 || >=b7cf5e2830bbb128699d7635ce8404b7f605bc95 <18916f475057cbd2fb8ea6ae86e6b85884ad1d53 || >=b7cf5e2830bbb128699d7635ce8404b7f605bc95 <d14e6298139f58a87a87d7022e26a7f37f0ddce7 || >=b7cf5e2830bbb128699d7635ce8404b7f605bc95 <e9290031f736e99ad17c25c00311c92c266843b7 | 1bec05a68414cf8d0cab6cb42445b8603f32ffc4, 3ad8ff12fd44b08af9212ac4883a7e29d2ab7348, 875daa3c750814ff2e2dc050239c390048f0bcd0, da740539e8f370767317e24615349b9342a6e773, 1edea8900ca3e405c1421d8b5c29f97107874f72, 18916f475057cbd2fb8ea6ae86e6b85884ad1d53, d14e6298139f58a87a87d7022e26a7f37f0ddce7, e9290031f736e99ad17c25c00311c92c266843b7 |
| Linux/Linuxgeneric | 5.2 | Not reported |
Published upstream
Sep 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 16, 2026
In the Linux kernel, the following vulnerability has been resolved: mtd: afs: validate v2 image info bounds The AFS v2 parser uses footer[8] to locate the image information block inside the current erase block, then uses the image information region_count to walk entries from a fixed local array. The footer offset and region count come from flash contents and are not checked against the erase block or the local image-info array before use. Reject v2 entries whose image information offset would underflow the erase block calculation, and reject region counts that cannot fit in the local image-info array before walking region entries.
Quoted source text, attributed separately from HOL analysis.