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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.

PUBLISHED Reserved 2026-03-09 | Published 2026-04-22 | Updated 2026-04-22 | Assigner Linux

Product status

Default status
unaffected

244da66cda359227d80ccb41dbcb99da40eae186 (git) before d94f9b0ba28a205caf95902ee88b42bdb8af83d0
affected

244da66cda359227d80ccb41dbcb99da40eae186 (git) before facd0012708e942fc12890708738aebde497564e
affected

244da66cda359227d80ccb41dbcb99da40eae186 (git) before 9dfa00967e6ef43a9dd0887fe5c3a721a39da92e
affected

244da66cda359227d80ccb41dbcb99da40eae186 (git) before ee66bc29578391c9b48523dc9119af67bd5c7c0f
affected

Default status
affected

6.4
affected

Any version before 6.4
unaffected

6.12.80 (semver)
unaffected

6.18.21 (semver)
unaffected

6.19.11 (semver)
unaffected

7.0 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/d94f9b0ba28a205caf95902ee88b42bdb8af83d0

git.kernel.org/...c/facd0012708e942fc12890708738aebde497564e

git.kernel.org/...c/9dfa00967e6ef43a9dd0887fe5c3a721a39da92e

git.kernel.org/...c/ee66bc29578391c9b48523dc9119af67bd5c7c0f

cve.org (CVE-2026-31440)

nvd.nist.gov (CVE-2026-31440)

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