RDMA/core: Fix FRMR aging push to queue error flow

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-74299
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-15 06:22:29 UTC
Updated2026-08-15 06:22:29 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: RDMA/core: Fix FRMR aging push to queue error flow Aging pools with pinned handles requires moving handles from the active queue to a non-empty inactive queue that might fail on new page allocation, we are currently not handling the fault and leaking any mkey that fails the push. Fix by Introducing push_queue_to_queue_locked() that fills the destination's partial tail page from the source and then splices the remaining source pages onto the destination, performing no allocation. Replace the per-handle move loop in age_pinned_pool() and the open-coded splice in pool_aging_work() with calls to the helper. As the helper cannot fail under memory pressure, removing a class of GFP_ATOMIC allocations under the pool lock and simplifying the error flow.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 020d189d16a62ed56115cce7e255459cf0eeb4e6 edf133d28fc43f7f8b0da43a8d5b93fdf8073d35 git Not specified
CNA Linux Linux affected 020d189d16a62ed56115cce7e255459cf0eeb4e6 c6936506ed556ce3ccad36ab999baf2764dd7d25 git Not specified
CNA Linux Linux affected 7.1 Not specified
CNA Linux Linux unaffected 7.1 semver Not specified
CNA Linux Linux unaffected 7.1.5 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/c6936506ed556ce3ccad36ab999baf2764dd7d25 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/edf133d28fc43f7f8b0da43a8d5b93fdf8073d35 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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