CVE-2026-46189
7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1 < 269967d7693304e1f06ed2dff4ebbbeeb397cda4 | affected |
| Linux | Linux | 29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1 < 1df5711121cdc11e76b889408fdbe459feba1d39 | affected |
| Linux | Linux | 29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1 < 3a231c34c5bc3d3cfc850b877758ec9fdaa8a483 | affected |
| Linux | Linux | 29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1 < ecc36a82ecfcfdf3c6606d209f22ec5543c410e0 | affected |
| Linux | Linux | 29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1 < 45d25e3ec17900bf5a9d6876ff16ceee31c4c0e0 | affected |
| Linux | Linux | 29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1 < 0c63333ff97bd1275294fd12840a0efe9d7a4c59 | affected |
| Linux | Linux | 29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1 < 935ee27d0904aa944cbcc979094c20e5ef62eead | affected |
| Linux | Linux | 29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1 < e38e86995df27f1f854063dab1f0c6a513db3faf | affected |
| Linux | Linux | 4.10 | affected |
| Linux | Linux | 0 < 4.10 | unaffected |
| Linux | Linux | 5.10.258 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.209 <= 5.15.* | unaffected |
| Linux | Linux | 6.1.175 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.140 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.88 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.30 <= 6.18.* | unaffected |
| Linux | Linux | 7.0.7 <= 7.0.* | unaffected |
| Linux | Linux | 7.1 <= * | unaffected |
Weaknesses
ADP Enrichment
kernel: RDMA/vmw_pvrdma: Fix double free on pvrdma_alloc_ucontext() error path
Additional References
- 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
- https://access.redhat.com/errata/RHSA-2026:33685
- https://access.redhat.com/errata/RHSA-2026:30848
- https://access.redhat.com/errata/RHSA-2026:33743
References
- https://git.kernel.org/stable/c/269967d7693304e1f06ed2dff4ebbbeeb397cda4
- https://git.kernel.org/stable/c/1df5711121cdc11e76b889408fdbe459feba1d39
- https://git.kernel.org/stable/c/3a231c34c5bc3d3cfc850b877758ec9fdaa8a483
- https://git.kernel.org/stable/c/ecc36a82ecfcfdf3c6606d209f22ec5543c410e0
- https://git.kernel.org/stable/c/45d25e3ec17900bf5a9d6876ff16ceee31c4c0e0
- https://git.kernel.org/stable/c/0c63333ff97bd1275294fd12840a0efe9d7a4c59
- https://git.kernel.org/stable/c/935ee27d0904aa944cbcc979094c20e5ef62eead
- https://git.kernel.org/stable/c/e38e86995df27f1f854063dab1f0c6a513db3faf
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