https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-18T07:02:41.804730+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/cve-2026-43120 CVE-2026-43120 — RDMA/irdma: Fix double free related to rereg_user_mr 2026-10-18T07:02:42.048390+00:00

Affected: Linux

In the Linux kernel, the following vulnerability has been resolved:

RDMA/irdma: Fix double free related to rereg_user_mr

If IB_MR_REREG_TRANS is set during rereg_user_mr, the umem will be released and a new one will be allocated in irdma_rereg_mr_trans. If any step of irdma_rereg_mr_trans fails after the new umem is allocated, it releases the umem, but does not set iwmr->region to NULL. The problem is that this failure is propagated to the user, who will then call ibv_dereg_mr (as they should). Then, the dereg_mr path will see a non-NULL umem and attempt to call ib_umem_release again.

Fix this by setting iwmr->region to NULL after ib_umem_release.

Fixed: 5ac388db27c4 ("RDMA/irdma: Add support to re-register a memory region")

 https://cve.radiocsirt.org/vuln/lsn-0122-1 LSN-0122-1 — Kernel Live Patch Security Notice 2026-10-18T07:02:42.048545+00:00

Affected: Ubuntu:Pro:16.04:LTS: linux-aws-hwe, Ubuntu:Pro:16.04:LTS: linux-aws, Ubuntu:Pro:16.04:LTS: linux-azure, Ubuntu:Pro:16.04:LTS: linux-gcp, Ubuntu:Pro:16.04:LTS: linux-hwe, Ubuntu:Pro:16.04:LTS: linux, Ubuntu:Pro:18.04:LTS: linux-aws, Ubuntu:Pro:18.04:LTS: linux-azure-4.15, Ubuntu:Pro:18.04:LTS: linux-gcp-4.15, Ubuntu:Pro:18.04:LTS: linux and 25 more

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