CVE-2026-46189
HIGH severity · CVSS 7.8 · Double free
7.8CVSS HIGH
Summary
In the Linux kernel, the following vulnerability has been resolved: RDMA/vmw_pvrdma: Fix double free on pvrdma_alloc_ucontext() error path Sashiko points out that pvrdma_uar_free() is already called within pvrdma_dealloc_ucontext(), so calling it before triggers a double free.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://git.kernel.org/stable/c/0c63333ff97bd1275294fd12840a0efe9d7a4c59 ↗
Additional information
- NVD record
- https://git.kernel.org/stable/c/0c63333ff97bd1275294fd12840a0efe9d7a4c59Patch
- https://git.kernel.org/stable/c/1df5711121cdc11e76b889408fdbe459feba1d39Patch
- https://git.kernel.org/stable/c/269967d7693304e1f06ed2dff4ebbbeeb397cda4Patch
- https://git.kernel.org/stable/c/3a231c34c5bc3d3cfc850b877758ec9fdaa8a483Patch
- https://git.kernel.org/stable/c/45d25e3ec17900bf5a9d6876ff16ceee31c4c0e0Patch
- https://git.kernel.org/stable/c/935ee27d0904aa944cbcc979094c20e5ef62eeadPatch
- https://git.kernel.org/stable/c/e38e86995df27f1f854063dab1f0c6a513db3fafPatch
- https://git.kernel.org/stable/c/ecc36a82ecfcfdf3c6606d209f22ec5543c410e0Patch