CVE-2026-46189
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.14%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.14% probability · 4th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-415, CWE-763
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- 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
- https://access.redhat.com/errata/RHSA-2026:30848
- https://access.redhat.com/errata/RHSA-2026:33685
- https://access.redhat.com/errata/RHSA-2026:33743
- https://access.redhat.com/errata/RHSA-2026:35904
- https://access.redhat.com/errata/RHSA-2026:36049
- https://access.redhat.com/errata/RHSA-2026:36073
- https://access.redhat.com/errata/RHSA-2026:36767
- https://access.redhat.com/errata/RHSA-2026:38902
- https://access.redhat.com/errata/RHSA-2026:40068
- https://access.redhat.com/errata/RHSA-2026:40760
- https://access.redhat.com/errata/RHSA-2026:47633
- https://access.redhat.com/security/cve/CVE-2026-46189
- https://bugzilla.redhat.com/show_bug.cgi?id=2482588
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46189.json
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.