CVE-2026-31440: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Fix leaking event log memory During the device remove process, the device is reset, causing the configuration registers to go back to their default state, which is zero. As the driver is checking if the event log support was enabled before deallocating, it will fail if a reset happened before. Do not check if the support was enabled, the check for 'idxd->evl' being valid (only allocated if the HW capability is available) is enough.

Засегнати продукти

• Linux Linux: 244da66cda359227d80ccb41dbcb99da40eae186 преди 695b491dc3f20365fd5821f22e25dbe3c1c20cbc; 244da66cda359227d80ccb41dbcb99da40eae186 преди d94f9b0ba28a205caf95902ee88b42bdb8af83d0; 244da66cda359227d80ccb41dbcb99da40eae186 преди facd0012708e942fc12890708738aebde497564e; 244da66cda359227d80ccb41dbcb99da40eae186 преди 9dfa00967e6ef43a9dd0887fe5c3a721a39da92e; 244da66cda359227d80ccb41dbcb99da40eae186 преди ee66bc29578391c9b48523dc9119af67bd5c7c0f
• Linux Linux: 6.4; преди 6.4; 6.6.140 до 6.6.*; 6.12.80 до 6.12.*; 6.18.21 до 6.18.*; 6.19.11 до 6.19.*; от 7.0 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99265
• CVE-2026-99261
• CVE-2026-99260

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-31440
• https://nvd.nist.gov/vuln/detail/CVE-2026-31440
• https://git.kernel.org/stable/c/695b491dc3f20365fd5821f22e25dbe3c1c20cbc
• https://git.kernel.org/stable/c/d94f9b0ba28a205caf95902ee88b42bdb8af83d0
• https://git.kernel.org/stable/c/facd0012708e942fc12890708738aebde497564e
• https://git.kernel.org/stable/c/9dfa00967e6ef43a9dd0887fe5c3a721a39da92e
• https://git.kernel.org/stable/c/ee66bc29578391c9b48523dc9119af67bd5c7c0f