CVE-2026-74377
CVE CVE-2026-74377EUVD EUVD-2026-59524Published 2026-08-15T05:58:55.000ZLast changed 2026-08-17T05:46:29.000ZCVSS 7.8
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Copy WQE to local buffer in non-SRQ receive path For non-SRQ QPs, the responder reads WQE fields directly from the shared queue buffer mapped into userspace. This allows a malicious user to modify fields like num_sge or sge entries while the kernel is processing the WQE, leading to out-of-bounds reads in rxe_resp_check_length() and copy_data(). Introduce get_recv_wqe() that validates num_sge and copies the WQE to a kernel-local buffer before processing, matching the approach already used for SRQ WQEs in get_srq_wqe(). The srq_wqe buffer is reused since SRQ and non-SRQ paths are mutually exclusive per QP.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux patch: 7.2; 8700e3e7c4857d28ebaa824509934556da0b3e76 <d6ab440240a04b8737ee4c7bb21af9182e451733; 8700e3e7c4857d28ebaa824509934556da0b3e76 <fc72fd61cc8b2e2e3e92ae4c0e9cc30c9a7ecb78; 8700e3e7c4857d28ebaa824509934556da0b3e76 <a211b7904aed365e4e4f08a48ec6e6dd1ea7b16b; 8700e3e7c4857d28ebaa824509934556da0b3e76 <2e60378fb3c8b51c94103bb40014c4fe38fa5033; patch: 6.18.40; patch: 6.6.145; patch: 0; patch: 6.12.97; patch: 6.1.178; 8700e3e7c4857d28ebaa824509934556da0b3e76 <5420eebf3b3c162bfaf965f30e61cd1d689e5732; patch: 7.1.5; 4.8; 8700e3e7c4857d28ebaa824509934556da0b3e76 <9fa785137303f7109c23dea779b8dedc67c9b531
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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