RDMA/erdma: complete object teardown when the destroy command fails

Summary

CVECVE-2026-92488
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-17 17:17:50 UTC
Updated2026-09-17 17:17:50 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: RDMA/erdma: complete object teardown when the destroy command fails erdma_destroy_qp(), erdma_destroy_cq(), erdma_dereg_mr(), and erdma_destroy_ah() returned early when erdma_post_cmd_wait() failed, leaking the queue buffers, MTTs, doorbells and the STAG, QPN, CQN and AHN identifiers. A command timeout clears ERDMA_CMDQ_STATE_OK_BIT and permanently disables the command queue, so no retry can succeed; the RDMA core keeps the object after a failed destructor and forced uverbs cleanup then nulls the pointers, making the resources unreachable. Warn on failure but release every software-owned resource and return success, since during terminal destruction the hardware command result is only diagnostic.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 155055771704f8cbb5c176a4309b7dc30a50450c 5fcfc988ecf3e2bbe308b95c2c0d2f011d9afabe git Not specified
CNA Linux Linux affected 155055771704f8cbb5c176a4309b7dc30a50450c ce7d205c264665517c25e8a3231cf2d0c2443e3c git Not specified
CNA Linux Linux affected 155055771704f8cbb5c176a4309b7dc30a50450c 334145d683ad3e31d052247f10807f2ebc950351 git Not specified
CNA Linux Linux affected 155055771704f8cbb5c176a4309b7dc30a50450c 652befcba956ef357f480525ccbe25c59bc81d4d git Not specified
CNA Linux Linux affected 6.0 Not specified
CNA Linux Linux unaffected 6.0 semver Not specified
CNA Linux Linux unaffected 6.12.110 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.52 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.6 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/ce7d205c264665517c25e8a3231cf2d0c2443e3c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/652befcba956ef357f480525ccbe25c59bc81d4d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/5fcfc988ecf3e2bbe308b95c2c0d2f011d9afabe 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/334145d683ad3e31d052247f10807f2ebc950351 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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