CVE-2026-92508
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/core: Fix potential use after free in ib_free_cq()
In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Fix potential use after free in ib_free_cq() When accessing a CQ via the netlink path the only synchronization mechanism for the said CQ is rdma_restrack_get(). Currently, rdma_restrack_del() is invoked at the end of ib_free_cq(), which is too late, since by that point vendor-specific resources associated with the CQ might already be freed. This can leave a short window where the CQ remains accessible through restrack, leading to a potential use-after-free. Fix this by moving the rdma_restrack_del() call to be before the freeing of the vendor-specific resources ensuring that the CQ is removed from restrack before its internal resources are released. This guarantees that no new users hold references to a CQ that is in the process of destruction.
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) |
|---|---|---|---|---|---|
| 43d781b9fa562f0c6e50f62c870fbfeb9dc85213 | affected | git | a804b162f9bc2b38b2ed1b4752eea9faadb1645b | Unavailable | None listed |
| 43d781b9fa562f0c6e50f62c870fbfeb9dc85213 | affected | git | 91f8a17a22ab615a03743120e19935e731f28fb9 | Unavailable | None listed |
| 43d781b9fa562f0c6e50f62c870fbfeb9dc85213 | affected | git | 76f2cb4f721815c3b6262a6dc2151de88646924c | Unavailable | None listed |
| 43d781b9fa562f0c6e50f62c870fbfeb9dc85213 | affected | git | b8dcca427096fc9c50f1b376847fea72bc842d31 | Unavailable | None listed |
| 43d781b9fa562f0c6e50f62c870fbfeb9dc85213 | affected | git | 9abea37942534eeb049335476178696b654b000c | Unavailable | None listed |
| 43d781b9fa562f0c6e50f62c870fbfeb9dc85213 | affected | git | 43403fe45379c64fa6276e5a8ede44493e5d2d3d | Unavailable | None listed |
| 43d781b9fa562f0c6e50f62c870fbfeb9dc85213 | affected | git | 29dc2f8e1c97372c2871a70088707933515fbd5b | Unavailable | None listed |
| 7ac277a01f9017fcde4f3f81670c995992945433 | affected | git | Unavailable | Unavailable | None listed |
| 093f87dda065e0f618dd577985eccbe85efb9b54 | affected | git | Unavailable | Unavailable | None listed |
| 5.8.17 | affected | semver | 5.9 | Unavailable | None listed |
| 5.9.2 | affected | semver | 5.10 | 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) |
|---|---|---|---|---|---|
| 5.10 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.10 | Unavailable | None listed |
| 5.15.221 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.188 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.157 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.110 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.52 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.2.6 | unaffected | semver | Unavailable | 7.2.* | None listed |
| 7.3 | unaffected | original_commit_for_fix | Unavailable | * | None listed |