CVEvulnerability
CVE-2026-92488
7.0 HIGH
Official page ↗
- Status
- Received
- Published
- 2026-09-17
- Last modified
- 2026-10-21
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 7.0 HIGH — CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
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.
References
- https://git.kernel.org/stable/c/334145d683ad3e31d052247f10807f2ebc950351 git.kernel.org
- https://git.kernel.org/stable/c/3886d944b506e0cc681646beb03c3024cb375a68 git.kernel.org
- https://git.kernel.org/stable/c/5fcfc988ecf3e2bbe308b95c2c0d2f011d9afabe git.kernel.org
- https://git.kernel.org/stable/c/652befcba956ef357f480525ccbe25c59bc81d4d git.kernel.org
- https://git.kernel.org/stable/c/ce7d205c264665517c25e8a3231cf2d0c2443e3c git.kernel.org