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Access of Uninitialized Pointer The advisory has been revoked - it doesn't affect any version of package kernel-rt-modules-extra  (opens in a new tab)

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EPSS
0.18% (8th percentile)

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  • Snyk IDSNYK-RHEL10-KERNELRTMODULESEXTRA-21327262
  • published21 Oct 2026
  • disclosed16 Sept 2026
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Introduced: 16 Sep 2026

CVE-2026-89808  (opens in a new tab)
CWE-824  (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:10.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-modules-extra package and not the kernel-rt-modules-extra package as distributed by RHEL.

In the Linux kernel, the following vulnerability has been resolved:

drm/amdkfd: Fix the case that vm range is hole at svm_migrate_copy_to_vram

When migration vm range is hole at cpu side(MIGRATE_PFN_MIGRATE set + MIGRATE_PFN_VALID unset) driver still allocates device pages. There is no dma map of src pages and migration. j is 0 and svm_migrate_copy_memory_gart() will return an uninitialized r. That can trigger out_free_vram_pages to drop all VRAM just set up.

Initialize r and only call the last svm_migrate_copy_memory_gart if j > 0.

Current code postponed the last page to the final copy. This patch flushes on the last page when reach to the end of current drm_buddy_block; avoids another svm_migrate_copy_memory_gart.