CVE-2026-92488

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

HIGH
7
CVSS Score
Published: September 17, 2026 at 04:10 PM UTC
Updated: October 30, 2026 at 01:20 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7
Exploit prediction
EPSS 0.1%

Description

In 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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

155055771704f8cbb5c176a4309b7dc30a50450c6.0
Vendor states this is fixed in 334145d683ad3e31d052247f10807f2ebc950351 (fixed)
Vendor states this is fixed in 5fcfc988ecf3e2bbe308b95c2c0d2f011d9afabe (fixed)
Vendor states this is fixed in 652befcba956ef357f480525ccbe25c59bc81d4d (fixed)
Vendor states this is fixed in ce7d205c264665517c25e8a3231cf2d0c2443e3c (fixed)
Vendor states this is fixed in 6.0 (unaffected)
Vendor states this is fixed in 6.12.110 (unaffected)
Vendor states this is fixed in 6.18.52 (unaffected)
Vendor states this is fixed in 6.6.160 (unaffected)
Vendor states this is fixed in 7.2.6 (unaffected)
Vendor states this is fixed in 7.3 (unaffected)
Vendor states this is fixed in 7.3-rc1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

CVSS

7HIGHLinux
Vector?

Quick Info

StatusRECEIVED

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