Linux kernel RDMA/vmw_pvrdma double free
CVE-2026-46189 Published on May 28, 2026
RDMA/vmw_pvrdma: Fix double free on pvrdma_alloc_ucontext() error path
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.
Products Associated with CVE-2026-46189
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Affected Versions
Linux:- Version 29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1 and below 269967d7693304e1f06ed2dff4ebbbeeb397cda4 is affected.
- Version 29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1 and below 1df5711121cdc11e76b889408fdbe459feba1d39 is affected.
- Version 29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1 and below 3a231c34c5bc3d3cfc850b877758ec9fdaa8a483 is affected.
- Version 29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1 and below ecc36a82ecfcfdf3c6606d209f22ec5543c410e0 is affected.
- Version 29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1 and below 45d25e3ec17900bf5a9d6876ff16ceee31c4c0e0 is affected.
- Version 29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1 and below 0c63333ff97bd1275294fd12840a0efe9d7a4c59 is affected.
- Version 29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1 and below 935ee27d0904aa944cbcc979094c20e5ef62eead is affected.
- Version 29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1 and below e38e86995df27f1f854063dab1f0c6a513db3faf is affected.
- Version 4.10 is affected.
- Before 4.10 is unaffected.
- Version 5.10.258, <= 5.10.* is unaffected.
- Version 5.15.209, <= 5.15.* is unaffected.
- Version 6.1.175, <= 6.1.* is unaffected.
- Version 6.6.140, <= 6.6.* is unaffected.
- Version 6.12.88, <= 6.12.* is unaffected.
- Version 6.18.30, <= 6.18.* is unaffected.
- Version 7.0.7, <= 7.0.* is unaffected.
- Version 7.1, <= * is unaffected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.