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.

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