Answer in brief
CVE-2026-100082 records a Unknown severity vulnerability in xen-blkback: Avoid UAF when reading I/O statistics. The current sources do not mark it as known exploited. The current feed maps 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.
A CVSS score is not reported in the current record. 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). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <253cff0526781e28b1b0f9fdacd74ecdc23d3ab7 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <2c9ccbe0ffcff3615c7ad917c49b67571a41f21c || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <58ba056991dbcec8a75e6861cb4479ac947b69e6 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <fe9ead8c5bdb752e329cecfecbdb5dfca5e9996b || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <b764e17313534794aeb99c901869f213e36a16ef || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <c49934da934cf495faf782aa5d84f413221c9be6 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <b0378161c28e77e4d0e2eda3c9433ab4394d2a2f || >=0 <5.10.274 || >=0 <5.15.225 || >=0 <6.1.192 || >=0 <6.6.162 || >=0 <6.12.116 || >=0 <6.18.62 || >=0 <7.3.3 | 253cff0526781e28b1b0f9fdacd74ecdc23d3ab7, 2c9ccbe0ffcff3615c7ad917c49b67571a41f21c, 58ba056991dbcec8a75e6861cb4479ac947b69e6, fe9ead8c5bdb752e329cecfecbdb5dfca5e9996b, b764e17313534794aeb99c901869f213e36a16ef, c49934da934cf495faf782aa5d84f413221c9be6, b0378161c28e77e4d0e2eda3c9433ab4394d2a2f, 5.10.274, 5.15.225, 6.1.192, 6.6.162, 6.12.116, 6.18.62, 7.3.3 |
Published upstream
Nov 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 6, 2026
In the Linux kernel, the following vulnerability has been resolved: xen-blkback: Avoid UAF when reading I/O statistics Reading I/O statistics via sysfs concurrently with tearing down a frontend device might result in UAF or a NULL dereference, as the reading of the statistics data is not synchronized with freeing the data. Use a rwlock for synchronizing. This is XSA-528 / CVE-2026-100082
Quoted source text, attributed separately from HOL analysis.