CVE-2026-31440
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.
Does this matter?
Lower severity and a low EPSS score (0.12%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.12% probability · 2th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-401
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/695b491dc3f20365fd5821f22e25dbe3c1c20cbc
- https://git.kernel.org/stable/c/9dfa00967e6ef43a9dd0887fe5c3a721a39da92ePatch
- https://git.kernel.org/stable/c/d94f9b0ba28a205caf95902ee88b42bdb8af83d0Patch
- https://git.kernel.org/stable/c/ee66bc29578391c9b48523dc9119af67bd5c7c0fPatch
- https://git.kernel.org/stable/c/facd0012708e942fc12890708738aebde497564ePatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.