High 7.0Published May 28, 2026

CVE-2026-46189RDMA/vmw_pvrdma: Fix double free on pvrdma_alloc_ucontext() error path

Updated under an hour ago (Oct 26, 2026, 7:23 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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: 7.0 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-763
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Modified
Record last updated: Sep 9, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1 before 269967d7693304e1f06ed2dff4ebbbeeb397cda4; 29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1 builds before 1df5711121cdc11e76b889408fdbe459feba1d39; 29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1 builds before 3a231c34c5bc3d3cfc850b877758ec9fdaa8a483; from 29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1 before ecc36a82ecfcfdf3c6606d209f22ec5543c410e0; from 29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1 before 45d25e3ec17900bf5a9d6876ff16ceee31c4c0e0; 29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1 builds before 0c63333ff97bd1275294fd12840a0efe9d7a4c59; from 29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1 before 935ee27d0904aa944cbcc979094c20e5ef62eead; from 29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1 before e38e86995df27f1f854063dab1f0c6a513db3faf	CNA record
Red Hat Red Hat Enterprise Linux 10 redhat:enterprise_linux	from 0:6.12.0-211.29.1.el10_2 not affected	CISA ADP
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support redhat:rhel_aus	from 0:4.18.0-305.199.1.el8_4 not affected	CISA ADP
Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On redhat:rhel_eus_long_life	from 0:4.18.0-305.199.1.el8_4 not affected	CISA ADP
Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service redhat:rhel_tus	from 0:4.18.0-477.152.1.el8_8 not affected	CISA ADP
Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions redhat:rhel_e4s	from 0:4.18.0-477.152.1.el8_8 not affected	CISA ADP
Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support redhat:rhel_eus	from 0:5.14.0-570.127.1.el9_6 not affected	CISA ADP
linux linux_kernel linux:linux_kernel	from 4.10 before 5.10.258; from 5.11 before 5.15.209; from 5.16 before 6.1.175; from 6.2 before 6.6.140; from 6.7 before 6.12.88; from 6.13 before 6.18.30; from 6.19 before 7.0.7; 7.1; and 1 more ranges	NVD

References

References

https://git.kernel.org/stable/c/269967d7693304e1f06ed2dff4ebbbeeb397cda4	patch
https://git.kernel.org/stable/c/1df5711121cdc11e76b889408fdbe459feba1d39	patch
https://git.kernel.org/stable/c/3a231c34c5bc3d3cfc850b877758ec9fdaa8a483	patch
https://git.kernel.org/stable/c/ecc36a82ecfcfdf3c6606d209f22ec5543c410e0	patch
https://git.kernel.org/stable/c/45d25e3ec17900bf5a9d6876ff16ceee31c4c0e0	patch
https://git.kernel.org/stable/c/0c63333ff97bd1275294fd12840a0efe9d7a4c59	patch
https://git.kernel.org/stable/c/935ee27d0904aa944cbcc979094c20e5ef62eead	patch
https://git.kernel.org/stable/c/e38e86995df27f1f854063dab1f0c6a513db3faf	patch
https://access.redhat.com/errata/RHSA-2026:30848
https://access.redhat.com/errata/RHSA-2026:33685
1–10 of 22

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.