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CVE-2026-92488

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

Description (CNA)

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 (CNA)

Vendor / productVersions
Linux / Linuxaffected 155055771704f8cbb5c176a4309b7dc30a50450c before 3886d944b506e0cc681646beb03c3024cb375a68; affected 155055771704f8cbb5c176a4309b7dc30a50450c before 5fcfc988ecf3e2bbe308b95c2c0d2f011d9afabe; affected 155055771704f8cbb5c176a4309b7dc30a50450c before ce7d205c264665517c25e8a3231cf2d0c2443e3c; affected 155055771704f8cbb5c176a4309b7dc30a50450c before 334145d683ad3e31d052247f10807f2ebc950351; affected 155055771704f8cbb5c176a4309b7dc30a50450c before 652befcba956ef357f480525ccbe25c59bc81d4d
Linux / Linuxaffected 6.0; unaffected 0 before 6.0; unaffected 6.6.160 through 6.6.*; unaffected 6.12.110 through 6.12.*; unaffected 6.18.52 through 6.18.*; unaffected 7.2.6 through 7.2.*; unaffected 7.3 through *

CWE

No CWE identifiers supplied.

References