Answer in brief
CVE-2026-89602 records a High severity (CVSS 7.8) vulnerability in erofs: skip sufficiently large global buffers when resizing. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), 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), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=d6db47e571dcaecaeaafa8840d00ae849ae3907b <7267557ce98ccd07faaf3bc86382448950cc4ff6 || >=d6db47e571dcaecaeaafa8840d00ae849ae3907b <7f4a89d4f0d6acaf4b756c31de48f2109a257b70 || >=d6db47e571dcaecaeaafa8840d00ae849ae3907b <a7d097cf01301c5da37927c8f26123d006f0fd8a | 7267557ce98ccd07faaf3bc86382448950cc4ff6, 7f4a89d4f0d6acaf4b756c31de48f2109a257b70, a7d097cf01301c5da37927c8f26123d006f0fd8a |
| Linux/Linuxgeneric | 6.10 | Not reported |
| Linux/Linuxgeneric | >=d6db47e571dcaecaeaafa8840d00ae849ae3907b <3fbdd15d5830f52661eb78be95058d101cb0c2cb || >=d6db47e571dcaecaeaafa8840d00ae849ae3907b <7267557ce98ccd07faaf3bc86382448950cc4ff6 || >=d6db47e571dcaecaeaafa8840d00ae849ae3907b <7f4a89d4f0d6acaf4b756c31de48f2109a257b70 || >=d6db47e571dcaecaeaafa8840d00ae849ae3907b <a7d097cf01301c5da37927c8f26123d006f0fd8a | 3fbdd15d5830f52661eb78be95058d101cb0c2cb, 7267557ce98ccd07faaf3bc86382448950cc4ff6, 7f4a89d4f0d6acaf4b756c31de48f2109a257b70, a7d097cf01301c5da37927c8f26123d006f0fd8a |
Published upstream
Sep 11, 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 11, 2026
In the Linux kernel, the following vulnerability has been resolved: erofs: skip sufficiently large global buffers when resizing z_erofs_gbuf_nrpages is advanced only after every global buffer has been grown. If a resize fails after some buffers were enlarged, a retry revisits those enlarged buffers. Retrying the same size then returns -ENOMEM because alloc_pages_bulk() has no pages to add and the unchanged return value is treated as a failure. Retrying an intermediate size allocates a temporary pointer array smaller than gbuf->nrpages and copies more existing pointers than the array can hold. Skip buffers that already satisfy the request. Once all remaining buffers have caught up, advancing z_erofs_gbuf_nrpages again describes the guaranteed minimum size across the pool.
Quoted source text, attributed separately from HOL analysis.