CVE-2026-74377
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
RDMA/rxe: Copy WQE to local buffer in non-SRQ receive path
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 8700e3e7c4857d28ebaa824509934556da0b3e76 | affected | git | 2e60378fb3c8b51c94103bb40014c4fe38fa5033 | Unavailable | None listed |
| 8700e3e7c4857d28ebaa824509934556da0b3e76 | affected | git | fc72fd61cc8b2e2e3e92ae4c0e9cc30c9a7ecb78 | Unavailable | None listed |
| 8700e3e7c4857d28ebaa824509934556da0b3e76 | affected | git | 9fa785137303f7109c23dea779b8dedc67c9b531 | Unavailable | None listed |
| 8700e3e7c4857d28ebaa824509934556da0b3e76 | affected | git | 5420eebf3b3c162bfaf965f30e61cd1d689e5732 | Unavailable | None listed |
| 8700e3e7c4857d28ebaa824509934556da0b3e76 | affected | git | a211b7904aed365e4e4f08a48ec6e6dd1ea7b16b | Unavailable | None listed |
| 8700e3e7c4857d28ebaa824509934556da0b3e76 | affected | git | d6ab440240a04b8737ee4c7bb21af9182e451733 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 4.8 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.8 | Unavailable | None listed |
| 6.1.178 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.145 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.97 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.40 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.1.5 | unaffected | semver | Unavailable | 7.1.* | None listed |
| 7.2 | unaffected | original_commit_for_fix | Unavailable | * | None listed |