CVE-2026-46189

EUVD-2026-32816
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.8 HIGH
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 4%
Affected Products (NVD)
VendorProductVersion
linuxlinux_kernel
4.10 ≤
𝑥
< 5.10.258
linuxlinux_kernel
5.11 ≤
𝑥
< 5.15.209
linuxlinux_kernel
5.16 ≤
𝑥
< 6.1.175
linuxlinux_kernel
6.2 ≤
𝑥
< 6.6.140
linuxlinux_kernel
6.7 ≤
𝑥
< 6.12.88
linuxlinux_kernel
6.13 ≤
𝑥
< 6.18.30
linuxlinux_kernel
6.19 ≤
𝑥
< 7.0.7
linuxlinux_kernel
7.1:rc1
linuxlinux_kernel
7.1:rc2
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
linux
bookworm
6.1.176-1
fixed
bookworm (security)
6.1.176-1
fixed
bullseye
vulnerable
bullseye (security)
5.10.259-1
fixed
forky
7.1.3-1
fixed
sid
7.1.3-1
fixed
trixie
6.12.94-1
fixed
trixie (security)
6.12.95-1
fixed
linux-6.1
bullseye (security)
6.1.176-1~deb11u1
fixed
Red Hat logo
Red Hat Enterprise Linux Releases
Red Hat Product
Release
bpftool
RHEL 8
0:4.18.0-553.139.1.el8_10
fixed
kernel
RHEL 8
0:4.18.0-553.139.1.el8_10
fixed
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-64k
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-64k-core
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-64k-debug
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-64k-debug-core
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-64k-debug-devel
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-64k-debug-devel-matched
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-64k-debug-modules
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-64k-debug-modules-core
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-64k-debug-modules-extra
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-64k-devel
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-64k-devel-matched
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-64k-modules
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-64k-modules-core
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-64k-modules-extra
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-abi-stablelists
RHEL 8
0:4.18.0-553.139.1.el8_10
fixed
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-core
RHEL 8
0:4.18.0-553.139.1.el8_10
fixed
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-debug
RHEL 8
0:4.18.0-553.139.1.el8_10
fixed
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-debug-core
RHEL 8
0:4.18.0-553.139.1.el8_10
fixed
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-debug-devel
RHEL 8
0:4.18.0-553.139.1.el8_10
fixed
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-debug-devel-matched
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-debug-modules
RHEL 8
0:4.18.0-553.139.1.el8_10
fixed
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-debug-modules-core
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-debug-modules-extra
RHEL 8
0:4.18.0-553.139.1.el8_10
fixed
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-debug-uki-virt
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-devel
RHEL 8
0:4.18.0-553.139.1.el8_10
fixed
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-devel-matched
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-doc
RHEL 8
0:4.18.0-553.139.1.el8_10
fixed
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-modules
RHEL 8
0:4.18.0-553.139.1.el8_10
fixed
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-modules-core
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-modules-extra
RHEL 8
0:4.18.0-553.139.1.el8_10
fixed
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-rt
RHEL 8
0:4.18.0-553.139.1.rt7.480.el8_10
fixed
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-rt-64k
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-rt-64k-core
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-rt-64k-debug
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-rt-64k-debug-core
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-rt-64k-debug-devel
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-rt-64k-debug-modules
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-rt-64k-debug-modules-core
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-rt-64k-debug-modules-extra
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-rt-64k-devel
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-rt-64k-modules
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-rt-64k-modules-core
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-rt-64k-modules-extra
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-rt-core
RHEL 8
0:4.18.0-553.139.1.rt7.480.el8_10
fixed
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-rt-debug
RHEL 8
0:4.18.0-553.139.1.rt7.480.el8_10
fixed
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-rt-debug-core
RHEL 8
0:4.18.0-553.139.1.rt7.480.el8_10
fixed
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-rt-debug-devel
RHEL 8
0:4.18.0-553.139.1.rt7.480.el8_10
fixed
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-rt-debug-kvm
RHEL 8
0:4.18.0-553.139.1.rt7.480.el8_10
fixed
kernel-rt-debug-modules
RHEL 8
0:4.18.0-553.139.1.rt7.480.el8_10
fixed
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-rt-debug-modules-core
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-rt-debug-modules-extra
RHEL 8
0:4.18.0-553.139.1.rt7.480.el8_10
fixed
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-rt-devel
RHEL 8
0:4.18.0-553.139.1.rt7.480.el8_10
fixed
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-rt-kvm
RHEL 8
0:4.18.0-553.139.1.rt7.480.el8_10
fixed
kernel-rt-modules
RHEL 8
0:4.18.0-553.139.1.rt7.480.el8_10
fixed
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-rt-modules-core
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-rt-modules-extra
RHEL 8
0:4.18.0-553.139.1.rt7.480.el8_10
fixed
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-tools
RHEL 8
0:4.18.0-553.139.1.el8_10
fixed
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-tools-libs
RHEL 8
0:4.18.0-553.139.1.el8_10
fixed
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-tools-libs-devel
RHEL 8
0:4.18.0-553.139.1.el8_10
fixed
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-uki-virt
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-uki-virt-addons
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-zfcpdump
RHEL 8
0:4.18.0-553.139.1.el8_10
fixed
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-zfcpdump-core
RHEL 8
0:4.18.0-553.139.1.el8_10
fixed
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-zfcpdump-devel
RHEL 8
0:4.18.0-553.139.1.el8_10
fixed
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-zfcpdump-devel-matched
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-zfcpdump-modules
RHEL 8
0:4.18.0-553.139.1.el8_10
fixed
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-zfcpdump-modules-core
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
kernel-zfcpdump-modules-extra
RHEL 8
0:4.18.0-553.139.1.el8_10
fixed
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
libperf
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
perf
RHEL 8
0:4.18.0-553.139.1.el8_10
fixed
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
python3-perf
RHEL 8
0:4.18.0-553.139.1.el8_10
fixed
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
rtla
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
rv
RHEL 9
0:5.14.0-687.19.1.el9_8
fixed
Azure Linux logo
Azure Linux Releases
Azure Package
Release
kernel
Azure Linux 3.0
0:6.6.141.1-1.azl3
fixed
Common Weakness Enumeration
Vulnerability Media Exposure
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/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