CVE-2026-100082

Beschreibung

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

Referenzen

• 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