CVE-2026-100082

Description

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

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EPSS — Exploit Prediction

0.0024

Probability of exploitation

0.16%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

References

Other References

https://git.kernel.org/stable/c/253cff0526781e28b1b0f9fdacd74ecdc23d3ab7 https://git.kernel.org/stable/c/2c9ccbe0ffcff3615c7ad917c49b67571a41f21c https://git.kernel.org/stable/c/58ba056991dbcec8a75e6861cb4479ac947b69e6 https://git.kernel.org/stable/c/b0378161c28e77e4d0e2eda3c9433ab4394d2a2f https://git.kernel.org/stable/c/b764e17313534794aeb99c901869f213e36a16ef https://git.kernel.org/stable/c/c49934da934cf495faf782aa5d84f413221c9be6 https://git.kernel.org/stable/c/fe9ead8c5bdb752e329cecfecbdb5dfca5e9996b http://www.openwall.com/lists/oss-security/2026/11/06/11 http://xenbits.xen.org/xsa/advisory-528.html

Frequently Asked Questions

What is CVE-2026-100082? +

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

How do I check if I'm vulnerable to CVE-2026-100082? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.