Riskcovery

CVE-2026-31440

dmaengine: idxd: Fix leaking event log memory

State
Published
Severity
Not scored
Published
Apr 22, 2026
Updated
May 17, 2026
Reserved
Mar 9, 2026

Read the record on cve.org

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 244da66cda359227d80ccb41dbcb99da40eae186 to before 695b491dc3f20365fd5821f22e25dbe3c1c20cbcAffected
  • 244da66cda359227d80ccb41dbcb99da40eae186 to before d94f9b0ba28a205caf95902ee88b42bdb8af83d0Affected
  • 244da66cda359227d80ccb41dbcb99da40eae186 to before facd0012708e942fc12890708738aebde497564eAffected
  • 244da66cda359227d80ccb41dbcb99da40eae186 to before 9dfa00967e6ef43a9dd0887fe5c3a721a39da92eAffected
  • 244da66cda359227d80ccb41dbcb99da40eae186 to before ee66bc29578391c9b48523dc9119af67bd5c7c0fAffected
LinuxLinux
  • 6.4Affected
  • before 6.4Not affected
  • 6.6.140 through 6.6.*Not affected
  • 6.12.80 through 6.12.*Not affected
  • 6.18.21 through 6.18.*Not affected
  • 6.19.11 through 6.19.*Not affected
  • 7.0 and laterNot affected

References

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