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    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 triggers a double free.

    Published:May 28, 2026
    Last Modified:Sep 9, 2026
    EPS:May 28, 2026
    EPSS Score:0.00143
    CVSS Score:7.8

    Affected Products

    Vendor
    Linux
    Product
    Linux Kernel

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    References

    https://git.kernel.org/stable/c/0c63333ff97bd1275294fd12840a0efe9d7a4c59
    https://git.kernel.org/stable/c/1df5711121cdc11e76b889408fdbe459feba1d39
    https://git.kernel.org/stable/c/269967d7693304e1f06ed2dff4ebbbeeb397cda4
    https://git.kernel.org/stable/c/3a231c34c5bc3d3cfc850b877758ec9fdaa8a483
    https://git.kernel.org/stable/c/45d25e3ec17900bf5a9d6876ff16ceee31c4c0e0
    https://git.kernel.org/stable/c/935ee27d0904aa944cbcc979094c20e5ef62eead
    https://git.kernel.org/stable/c/e38e86995df27f1f854063dab1f0c6a513db3faf
    https://git.kernel.org/stable/c/ecc36a82ecfcfdf3c6606d209f22ec5543c410e0
    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

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High