CVE-2026-68419
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/irdma: Prevent rereg_mr for non-mem regions
In the Linux kernel, the following vulnerability has been resolved: RDMA/irdma: Prevent rereg_mr for non-mem regions When a QP/CQ/SRQ is created, a two step process is used where the buffer is allocated in userspace and explicitly registered with the normal reg_mr mechanism prior to creating the actual QP/CQ/SRQ object. These special registrations are indicated via an ABI field so the driver knows that they do not have a valid mkey and to skip the actual CQP command submission. Since these are real MR objects from the core's perspective, it is possible for a user application to invoke rereg_mr on them and cause a real CQP op to be emitted with the zero-initialized mkey value of 0. Fix this by preventing rereg_mr on these special regions.
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) |
|---|---|---|---|---|---|
| 715fdb3b30541cc8180b7cdc6aa9f8c307afdf25 | affected | git | fb46d134e1b8690bed2da9005b36d32d2efd34ac | Unavailable | None listed |
| 5ac388db27c443dadfbb0b8b23fa7ccf429d901a | affected | git | b5029e91c63406e4f4c8d58161048b41b6f0bd8c | Unavailable | None listed |
| 5ac388db27c443dadfbb0b8b23fa7ccf429d901a | affected | git | ca1c29f05274b737dc964e28b97803750d7cf7ec | Unavailable | None listed |
| 5ac388db27c443dadfbb0b8b23fa7ccf429d901a | affected | git | dbaa37e060918c45517786e37ecab0f300b48fa9 | Unavailable | None listed |
| 5ac388db27c443dadfbb0b8b23fa7ccf429d901a | affected | git | a846aecb931b4d65d5eafa92a0623545af46d4f2 | Unavailable | None listed |
| 6.6.120 | affected | semver | 6.6.148 | 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) |
|---|---|---|---|---|---|
| 6.7 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 6.7 | Unavailable | None listed |
| 6.6.148 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.101 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.42 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.1.6 | unaffected | semver | Unavailable | 7.1.* | None listed |
| 7.2 | unaffected | original_commit_for_fix | Unavailable | * | None listed |