CVE-2026-46189 json
RDMA/vmw_pvrdma: Fix double free on pvrdma_alloc_ucontext() error path
published 2026-05-28 5 mo ago modified 2026-11-06 2 d ago also EUVD-2026-32816
- cvss
- 7.0
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.1%
- EPSS 0.1% chance of exploitation in 30 days, percentile 3%
- public exploits
- 0
- none known
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.
Patch / fix
- Linux Linux 5.10.258, 5.15.209, 6.1.175, 6.6.140, 6.12.88, 6.18.30, 7.0.7, 7.1
- Red Hat Red Hat Enterprise Linux 10 0:6.12.0-211.29.1.el10_2
- Red Hat Red Hat Enterprise Linux 8 0:4.18.0-553.139.1.el8_10, 0:4.18.0-553.139.1.rt7.480.el8_10
- Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support 0:4.18.0-305.199.1.el8_4
- Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On 0:4.18.0-305.199.1.el8_4
- Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support 0:4.18.0-372.201.1.el8_6
- Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On 0:4.18.0-372.201.1.el8_6
- Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service 0:4.18.0-477.152.1.el8_8
- Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions 0:4.18.0-477.152.1.el8_8
- Red Hat Red Hat Enterprise Linux 9 0:5.14.0-687.19.1.el9_8
- Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions 0:5.14.0-284.179.1.el9_2, 0:5.14.0-284.179.1.rt14.464.el9_2
- Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions 0:5.14.0-427.136.1.el9_4
- Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support 0:5.14.0-570.127.1.el9_6
- linux Debian 12 6.1.176-1
- linux Debian 13 6.12.88-1
- linux Debian 14 7.0.7-1
debian advisories DEBIAN-CVE-2026-46189
- linux Ubuntu 22.04 LTS 5.15.0-186.196
- linux Ubuntu 24.04 LTS 6.8.0-136.136
- linux Ubuntu 26.04 LTS 7.0.0-28.28
- linux-aws Ubuntu 22.04 LTS 5.15.0-1112.119
- linux-aws Ubuntu 24.04 LTS 6.8.0-1061.64
- linux-aws Ubuntu 26.04 LTS 7.0.0-1009.9
- linux-gcp Ubuntu 22.04 LTS 5.15.0-1112.122
- linux-gcp Ubuntu 24.04 LTS 6.8.0-1064.72
ubuntu advisories UBUNTU-CVE-2026-46189
Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0
- kpatch-patch-6_12_0-211_16_1 RHEL 10.2 1-9.el10_2
- kpatch-patch-6_12_0-211_49_1 RHEL 10.2 1-1.el10_2
- kpatch-patch-5_14_0-687_10_1 RHEL 9 1-9.el9_8
- kpatch-patch-4_18_0-553_85_1 RHEL 8 1-14.el8_10
- kpatch-patch-4_18_0-553_72_1 RHEL 8 1-16.el8_10
- kpatch-patch-4_18_0-553_109_1 RHEL 8 1-12.el8_10
- kpatch-patch-4_18_0-553_125_1 RHEL 8 1-9.el8_10
- kpatch-patch-4_18_0-553_158_1 RHEL 8 1-1.el8_10
red hat advisories RHSA-2026:83707RHSA-2026:72831RHSA-2026:72832RHSA-2026:72830RHSA-2026:72630RHSA-2026:72628
- kernel-rt Real Time Module 15 SP7 6.4.0-150700.7.72.1
- kernel-syms-rt Real Time Module 15 SP7 6.4.0-150700.7.72.1
- kernel-source-rt Real Time Module 15 SP7 6.4.0-150700.7.72.1
- kernel-64kb SLE Module for Basesystem 15 SP7 6.4.0-150700.53.78.1
- kernel-syms SLE Module for Development Tools 15 SP7 6.4.0-150700.53.78.1
- kernel-azure SLE Module for Public Cloud 15 SP7 6.4.0-150700.53.78.1
- kernel-source SLE Module for Development Tools 15 SP7, SLE Module for Basesystem 15 SP7 6.4.0-150700.53.78.1
- kernel-default SLE Workstation Extension 15 SP7, SLE Module for Legacy 15 SP7, SLE Module for Basesystem 15 SP7 +2 more 6.4.0-150700.53.78.1
suse advisories SUSE-SU-2026:3810-1SUSE-SU-2026:3790-1SUSE-SU-2026:23244-1SUSE-SU-2026:23241-1SUSE-SU-2026:23194-1SUSE-SU-2026:23193-1
- kernel-rt openSUSE Leap 16.0 6.12.0-160000.37.1
- dtb-aarch64 openSUSE Leap 16.0 6.12.0-160000.37.1
- kernel-64kb openSUSE Leap 16.0 6.12.0-160000.37.1
- kernel-syms openSUSE Leap 16.0 6.12.0-160000.37.1
- kernel-azure openSUSE Leap 16.0 6.12.0-160000.37.1
- kernel-obs-qa openSUSE Leap 16.0 6.12.0-160000.37.1
- kernel-source openSUSE Leap 16.0 6.12.0-160000.37.1
- kernel-default openSUSE Leap 16.0 6.12.0-160000.37.1
opensuse advisories openSUSE-SU-2026:21555-1openSUSE-SU-2026:10954-1
- kernel-rt AlmaLinux 8 4.18.0-553.139.1.rt7.480.el8_10
- kernel-rt-core AlmaLinux 8 4.18.0-553.139.1.rt7.480.el8_10
- kernel-rt-modules AlmaLinux 8 4.18.0-553.139.1.rt7.480.el8_10
- kernel-rt-debug-core AlmaLinux 8 4.18.0-553.139.1.rt7.480.el8_10
- kernel-rt-debug-modules AlmaLinux 8 4.18.0-553.139.1.rt7.480.el8_10
- kernel-rt-modules-extra AlmaLinux 8 4.18.0-553.139.1.rt7.480.el8_10
- kernel-rt-debug-modules-extra AlmaLinux 8 4.18.0-553.139.1.rt7.480.el8_10
- kernel AlmaLinux 10 6.12.0-211.29.1.el10_2
almalinux advisories ALSA-2026:36049ALSA-2026:33685ALSA-2026:33743ALSA-2026:30848
- git.kernel.org/stable/c/269967d7693304e1f06ed2dff4ebbbeeb397cda4 commit
- git.kernel.org/stable/c/1df5711121cdc11e76b889408fdbe459feba1d39 commit
- git.kernel.org/stable/c/3a231c34c5bc3d3cfc850b877758ec9fdaa8a483 commit
- git.kernel.org/stable/c/ecc36a82ecfcfdf3c6606d209f22ec5543c410e0 commit
- git.kernel.org/stable/c/45d25e3ec17900bf5a9d6876ff16ceee31c4c0e0 commit
- git.kernel.org/stable/c/0c63333ff97bd1275294fd12840a0efe9d7a4c59 commit
- git.kernel.org/stable/c/935ee27d0904aa944cbcc979094c20e5ef62eead commit
- git.kernel.org/stable/c/e38e86995df27f1f854063dab1f0c6a513db3faf commit
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2026-46189 updated cvss 7.0
kernel: RDMA/vmw_pvrdma: Fix double free on pvrdma_alloc_ucontext() error path
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Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more Red Hat Enterprise Linux 9 kernel-rt, kernel-rt-kvm, kernel-rt-core, kernel-rt-modules, kernel-rt-debug-kvm, kernel-rt-debug-core, +12 moreaffected: workaround, no fix available
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Red Hat CodeReady Linux Builder EUS (v.9.6) libperf 5.14.0-570.127.1.el9_6, kernel-debuginfo-common-s390x 5.14.0-570.127.1.el9_6, kernel-debuginfo-common-x86_64 5.14.0-570.127.1.el9_6, kernel-debuginfo-common-aarch64 5.14.0-570.127.1.el9_6, kernel-debuginfo-common-ppc64le 5.14.0-570.127.1.el9_6fixed: vendor fix RHSA-2026:38902
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Red Hat Enterprise Linux AppStream (v. 9) rv 5.14.0-687.19.1.el9_8, perf 5.14.0-687.19.1.el9_8, rtla 5.14.0-687.19.1.el9_8, python3-perf 5.14.0-687.19.1.el9_8, kernel-devel-matched 5.14.0-687.19.1.el9_8, kernel-64k-devel-matched 5.14.0-687.19.1.el9_8, +7 morefixed: vendor fix RHSA-2026:30848
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Red Hat Enterprise Linux AppStream (v. 10) rv 6.12.0-211.29.1.el10_2, perf 6.12.0-211.29.1.el10_2, rtla 6.12.0-211.29.1.el10_2, python3-perf 6.12.0-211.29.1.el10_2, kernel-devel-matched 6.12.0-211.29.1.el10_2, kernel-64k-devel-matched 6.12.0-211.29.1.el10_2, +7 morefixed: vendor fix RHSA-2026:33685
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Red Hat Enterprise Linux AppStream E4S (v.9.2) perf 5.14.0-284.179.1.el9_2, rtla 5.14.0-284.179.1.el9_2, kernel-devel-matched 5.14.0-284.179.1.el9_2, kernel-64k-devel-matched 5.14.0-284.179.1.el9_2, kernel-debug-devel-matched 5.14.0-284.179.1.el9_2, kernel-debuginfo-common-s390x 5.14.0-284.179.1.el9_2, +5 morefixed: vendor fix RHSA-2026:36073
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Red Hat Enterprise Linux AppStream E4S (v.9.4) rv 5.14.0-427.136.1.el9_4, perf 5.14.0-427.136.1.el9_4, rtla 5.14.0-427.136.1.el9_4, kernel-devel-matched 5.14.0-427.136.1.el9_4, kernel-64k-devel-matched 5.14.0-427.136.1.el9_4, kernel-debug-devel-matched 5.14.0-427.136.1.el9_4, +6 morefixed: vendor fix RHSA-2026:36767
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Red Hat Enterprise Linux AppStream EUS (v. 10.0) rv 6.12.0-55.111.1.el10_0, perf 6.12.0-55.111.1.el10_0, rtla 6.12.0-55.111.1.el10_0, python3-perf 6.12.0-55.111.1.el10_0, kernel-devel-matched 6.12.0-55.111.1.el10_0, kernel-64k-devel-matched 6.12.0-55.111.1.el10_0, +7 morefixed: vendor fix RHSA-2026:83707
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Red Hat Enterprise Linux AppStream EUS (v.9.6) rv 5.14.0-570.127.1.el9_6, perf 5.14.0-570.127.1.el9_6, rtla 5.14.0-570.127.1.el9_6, python3-perf 5.14.0-570.127.1.el9_6, kernel-devel-matched 5.14.0-570.127.1.el9_6, kernel-64k-devel-matched 5.14.0-570.127.1.el9_6, +7 morefixed: vendor fix RHSA-2026:38902
show 31 moreshow fewer
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Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-553.139.1.el8_10, kernel 4.18.0-553.139.1.el8_10, bpftool 4.18.0-553.139.1.el8_10, kernel-core 4.18.0-553.139.1.el8_10, kernel-tools 4.18.0-553.139.1.el8_10, python3-perf 4.18.0-553.139.1.el8_10, +20 morefixed: vendor fix RHSA-2026:33743
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Red Hat Enterprise Linux BaseOS (v. 9) kernel 5.14.0-687.19.1.el9_8, kernel-64k 5.14.0-687.19.1.el9_8, kernel-core 5.14.0-687.19.1.el9_8, kernel-tools 5.14.0-687.19.1.el9_8, kernel-modules 5.14.0-687.19.1.el9_8, kernel-64k-core 5.14.0-687.19.1.el9_8, +28 morefixed: vendor fix RHSA-2026:30848
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Red Hat Enterprise Linux BaseOS (v. 10) kernel 6.12.0-211.29.1.el10_2, kernel-64k 6.12.0-211.29.1.el10_2, kernel-core 6.12.0-211.29.1.el10_2, kernel-tools 6.12.0-211.29.1.el10_2, kernel-modules 6.12.0-211.29.1.el10_2, kernel-64k-core 6.12.0-211.29.1.el10_2, +30 morefixed: vendor fix RHSA-2026:33685
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Red Hat Enterprise Linux BaseOS AUS (v.8.4) perf 4.18.0-305.199.1.el8_4, kernel 4.18.0-305.199.1.el8_4, bpftool 4.18.0-305.199.1.el8_4, kernel-core 4.18.0-305.199.1.el8_4, kernel-tools 4.18.0-305.199.1.el8_4, python3-perf 4.18.0-305.199.1.el8_4, +8 morefixed: vendor fix RHSA-2026:47633
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Red Hat Enterprise Linux BaseOS AUS (v.8.6) perf 4.18.0-372.201.1.el8_6, kernel 4.18.0-372.201.1.el8_6, bpftool 4.18.0-372.201.1.el8_6, kernel-core 4.18.0-372.201.1.el8_6, kernel-tools 4.18.0-372.201.1.el8_6, python3-perf 4.18.0-372.201.1.el8_6, +8 morefixed: vendor fix RHSA-2026:40068
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Red Hat Enterprise Linux BaseOS E4S (v.8.8) perf 4.18.0-477.152.1.el8_8, kernel 4.18.0-477.152.1.el8_8, bpftool 4.18.0-477.152.1.el8_8, kernel-core 4.18.0-477.152.1.el8_8, kernel-tools 4.18.0-477.152.1.el8_8, python3-perf 4.18.0-477.152.1.el8_8, +14 morefixed: vendor fix RHSA-2026:40760
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Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool 7.0.0-284.179.1.el9_2, kernel 5.14.0-284.179.1.el9_2, kernel-64k 5.14.0-284.179.1.el9_2, kernel-core 5.14.0-284.179.1.el9_2, kernel-tools 5.14.0-284.179.1.el9_2, python3-perf 5.14.0-284.179.1.el9_2, +33 morefixed: vendor fix RHSA-2026:36073
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Red Hat Enterprise Linux BaseOS E4S (v.9.4) bpftool 7.3.0-427.136.1.el9_4, kernel 5.14.0-427.136.1.el9_4, kernel-64k 5.14.0-427.136.1.el9_4, kernel-core 5.14.0-427.136.1.el9_4, kernel-tools 5.14.0-427.136.1.el9_4, python3-perf 5.14.0-427.136.1.el9_4, +33 morefixed: vendor fix RHSA-2026:36767
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Red Hat Enterprise Linux BaseOS EUS (v. 10.0) kernel 6.12.0-55.111.1.el10_0, kernel-64k 6.12.0-55.111.1.el10_0, kernel-core 6.12.0-55.111.1.el10_0, kernel-tools 6.12.0-55.111.1.el10_0, kernel-modules 6.12.0-55.111.1.el10_0, kernel-64k-core 6.12.0-55.111.1.el10_0, +27 morefixed: vendor fix RHSA-2026:83707
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Red Hat Enterprise Linux BaseOS EUS (v.9.6) kernel 5.14.0-570.127.1.el9_6, kernel-64k 5.14.0-570.127.1.el9_6, kernel-core 5.14.0-570.127.1.el9_6, kernel-tools 5.14.0-570.127.1.el9_6, kernel-modules 5.14.0-570.127.1.el9_6, kernel-64k-core 5.14.0-570.127.1.el9_6, +32 morefixed: vendor fix RHSA-2026:38902
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Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) perf 4.18.0-305.199.1.el8_4, kernel 4.18.0-305.199.1.el8_4, bpftool 4.18.0-305.199.1.el8_4, kernel-core 4.18.0-305.199.1.el8_4, kernel-tools 4.18.0-305.199.1.el8_4, python3-perf 4.18.0-305.199.1.el8_4, +8 morefixed: vendor fix RHSA-2026:47633
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Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6) perf 4.18.0-372.201.1.el8_6, kernel 4.18.0-372.201.1.el8_6, bpftool 4.18.0-372.201.1.el8_6, kernel-core 4.18.0-372.201.1.el8_6, kernel-tools 4.18.0-372.201.1.el8_6, python3-perf 4.18.0-372.201.1.el8_6, +8 morefixed: vendor fix RHSA-2026:40068
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Red Hat Enterprise Linux BaseOS TUS (v.8.8) perf 4.18.0-477.152.1.el8_8, kernel 4.18.0-477.152.1.el8_8, bpftool 4.18.0-477.152.1.el8_8, kernel-core 4.18.0-477.152.1.el8_8, kernel-tools 4.18.0-477.152.1.el8_8, python3-perf 4.18.0-477.152.1.el8_8, +8 morefixed: vendor fix RHSA-2026:40760
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Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) libperf 5.14.0-687.19.1.el9_8, kernel-debuginfo-common-s390x 5.14.0-687.19.1.el9_8, kernel-debuginfo-common-x86_64 5.14.0-687.19.1.el9_8, kernel-debuginfo-common-aarch64 5.14.0-687.19.1.el9_8, kernel-debuginfo-common-ppc64le 5.14.0-687.19.1.el9_8fixed: vendor fix RHSA-2026:30848
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Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) libperf 6.12.0-211.29.1.el10_2, kernel-debuginfo-common-s390x 6.12.0-211.29.1.el10_2, kernel-debuginfo-common-x86_64 6.12.0-211.29.1.el10_2, kernel-debuginfo-common-aarch64 6.12.0-211.29.1.el10_2, kernel-debuginfo-common-ppc64le 6.12.0-211.29.1.el10_2fixed: vendor fix RHSA-2026:33685
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Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) libperf 6.12.0-55.111.1.el10_0, kernel-debuginfo-common-s390x 6.12.0-55.111.1.el10_0, kernel-debuginfo-common-x86_64 6.12.0-55.111.1.el10_0, kernel-debuginfo-common-aarch64 6.12.0-55.111.1.el10_0, kernel-debuginfo-common-ppc64le 6.12.0-55.111.1.el10_0fixed: vendor fix RHSA-2026:83707
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Red Hat Enterprise Linux CRB (v. 8) kernel-debuginfo-common-x86_64 4.18.0-553.139.1.el8_10, kernel-debuginfo-common-aarch64 4.18.0-553.139.1.el8_10, kernel-debuginfo-common-ppc64le 4.18.0-553.139.1.el8_10fixed: vendor fix RHSA-2026:33743
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Red Hat Enterprise Linux NFV (v. 8) kernel-rt 4.18.0-553.139.1.rt7.480.el8_10, kernel-rt-kvm 4.18.0-553.139.1.rt7.480.el8_10, kernel-rt-core 4.18.0-553.139.1.rt7.480.el8_10, kernel-rt-modules 4.18.0-553.139.1.rt7.480.el8_10, kernel-rt-debug-kvm 4.18.0-553.139.1.rt7.480.el8_10, kernel-rt-debug-core 4.18.0-553.139.1.rt7.480.el8_10, +4 morefixed: vendor fix RHSA-2026:36049
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Red Hat Enterprise Linux Real Time (v. 9) kernel-rt 5.14.0-687.19.1.el9_8, kernel-rt-64k 5.14.0-687.19.1.el9_8, kernel-rt-core 5.14.0-687.19.1.el9_8, kernel-rt-modules 5.14.0-687.19.1.el9_8, kernel-rt-64k-core 5.14.0-687.19.1.el9_8, kernel-rt-debug-core 5.14.0-687.19.1.el9_8, +14 morefixed: vendor fix RHSA-2026:30848
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Red Hat Enterprise Linux Real Time (v. 10) kernel-rt 6.12.0-211.29.1.el10_2, kernel-rt-64k 6.12.0-211.29.1.el10_2, kernel-rt-core 6.12.0-211.29.1.el10_2, kernel-rt-modules 6.12.0-211.29.1.el10_2, kernel-rt-64k-core 6.12.0-211.29.1.el10_2, kernel-rt-debug-core 6.12.0-211.29.1.el10_2, +14 morefixed: vendor fix RHSA-2026:33685
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Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt 5.14.0-284.179.1.rt14.464.el9_2, kernel-rt-core 5.14.0-284.179.1.rt14.464.el9_2, kernel-rt-modules 5.14.0-284.179.1.rt14.464.el9_2, kernel-rt-debug-core 5.14.0-284.179.1.rt14.464.el9_2, kernel-rt-modules-core 5.14.0-284.179.1.rt14.464.el9_2, kernel-rt-debug-modules 5.14.0-284.179.1.rt14.464.el9_2, +4 morefixed: vendor fix RHSA-2026:35904
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Red Hat Enterprise Linux Real Time E4S (v.9.4) kernel-rt 5.14.0-427.136.1.el9_4, kernel-rt-core 5.14.0-427.136.1.el9_4, kernel-rt-modules 5.14.0-427.136.1.el9_4, kernel-rt-debug-core 5.14.0-427.136.1.el9_4, kernel-rt-modules-core 5.14.0-427.136.1.el9_4, kernel-rt-debug-modules 5.14.0-427.136.1.el9_4, +4 morefixed: vendor fix RHSA-2026:36767
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Red Hat Enterprise Linux Real Time EUS (v. 10.0) kernel-rt 6.12.0-55.111.1.el10_0, kernel-rt-64k 6.12.0-55.111.1.el10_0, kernel-rt-core 6.12.0-55.111.1.el10_0, kernel-rt-modules 6.12.0-55.111.1.el10_0, kernel-rt-64k-core 6.12.0-55.111.1.el10_0, kernel-rt-debug-core 6.12.0-55.111.1.el10_0, +14 morefixed: vendor fix RHSA-2026:83707
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Red Hat Enterprise Linux Real Time EUS (v.9.6) kernel-rt 5.14.0-570.127.1.el9_6, kernel-rt-64k 5.14.0-570.127.1.el9_6, kernel-rt-core 5.14.0-570.127.1.el9_6, kernel-rt-modules 5.14.0-570.127.1.el9_6, kernel-rt-64k-core 5.14.0-570.127.1.el9_6, kernel-rt-debug-core 5.14.0-570.127.1.el9_6, +14 morefixed: vendor fix RHSA-2026:38902
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Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt 5.14.0-687.19.1.el9_8, kernel-rt-core 5.14.0-687.19.1.el9_8, kernel-rt-modules 5.14.0-687.19.1.el9_8, kernel-rt-debug-core 5.14.0-687.19.1.el9_8, kernel-rt-modules-core 5.14.0-687.19.1.el9_8, kernel-rt-debug-modules 5.14.0-687.19.1.el9_8, +4 morefixed: vendor fix RHSA-2026:30848
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Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt 6.12.0-211.29.1.el10_2, kernel-rt-core 6.12.0-211.29.1.el10_2, kernel-rt-modules 6.12.0-211.29.1.el10_2, kernel-rt-debug-core 6.12.0-211.29.1.el10_2, kernel-rt-modules-core 6.12.0-211.29.1.el10_2, kernel-rt-debug-modules 6.12.0-211.29.1.el10_2, +4 morefixed: vendor fix RHSA-2026:33685
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Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt 5.14.0-284.179.1.rt14.464.el9_2, kernel-rt-kvm 5.14.0-284.179.1.rt14.464.el9_2, kernel-rt-core 5.14.0-284.179.1.rt14.464.el9_2, kernel-rt-modules 5.14.0-284.179.1.rt14.464.el9_2, kernel-rt-debug-kvm 5.14.0-284.179.1.rt14.464.el9_2, kernel-rt-debug-core 5.14.0-284.179.1.rt14.464.el9_2, +6 morefixed: vendor fix RHSA-2026:35904
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Red Hat Enterprise Linux Real Time for NFV E4S (v.9.4) kernel-rt 5.14.0-427.136.1.el9_4, kernel-rt-kvm 5.14.0-427.136.1.el9_4, kernel-rt-core 5.14.0-427.136.1.el9_4, kernel-rt-modules 5.14.0-427.136.1.el9_4, kernel-rt-debug-kvm 5.14.0-427.136.1.el9_4, kernel-rt-debug-core 5.14.0-427.136.1.el9_4, +6 morefixed: vendor fix RHSA-2026:36767
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Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0) kernel-rt 6.12.0-55.111.1.el10_0, kernel-rt-kvm 6.12.0-55.111.1.el10_0, kernel-rt-core 6.12.0-55.111.1.el10_0, kernel-rt-modules 6.12.0-55.111.1.el10_0, kernel-rt-debug-kvm 6.12.0-55.111.1.el10_0, kernel-rt-debug-core 6.12.0-55.111.1.el10_0, +6 morefixed: vendor fix RHSA-2026:83707
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Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6) kernel-rt 5.14.0-570.127.1.el9_6, kernel-rt-kvm 5.14.0-570.127.1.el9_6, kernel-rt-core 5.14.0-570.127.1.el9_6, kernel-rt-modules 5.14.0-570.127.1.el9_6, kernel-rt-debug-kvm 5.14.0-570.127.1.el9_6, kernel-rt-debug-core 5.14.0-570.127.1.el9_6, +6 morefixed: vendor fix RHSA-2026:38902
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Red Hat Enterprise Linux RT (v. 8) kernel-rt 4.18.0-553.139.1.rt7.480.el8_10, kernel-rt-core 4.18.0-553.139.1.rt7.480.el8_10, kernel-rt-modules 4.18.0-553.139.1.rt7.480.el8_10, kernel-rt-debug-core 4.18.0-553.139.1.rt7.480.el8_10, kernel-rt-debug-modules 4.18.0-553.139.1.rt7.480.el8_10, kernel-rt-modules-extra 4.18.0-553.139.1.rt7.480.el8_10, +2 morefixed: vendor fix RHSA-2026:36049
1 more not affected in the full advisory
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 d ago
Exploit prediction
0.14% chance of exploitation in the next 30 days, higher than 3% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| CNA | 3.1 | 7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
- Linux Linux
- Red Hat Red Hat Enterprise Linux 10
- Red Hat Red Hat Enterprise Linux 8
- Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
- Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On
- Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
- Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On
- Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service
- Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
- Red Hat Red Hat Enterprise Linux 9
- Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions
- Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions
- Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support
- Red Hat Red Hat Enterprise Linux 6
- Red Hat Red Hat Enterprise Linux 7
Classification
- Weakness
- Technology feeds
References
-
git.kernel.org
/stable/c/269967d7693304e1f06ed2dff4ebbbeeb397cda4
patch
-
git.kernel.org
/stable/c/1df5711121cdc11e76b889408fdbe459feba1d39
patch
-
git.kernel.org
/stable/c/3a231c34c5bc3d3cfc850b877758ec9fdaa8a483
patch
-
git.kernel.org
/stable/c/ecc36a82ecfcfdf3c6606d209f22ec5543c410e0
patch
-
git.kernel.org
/stable/c/45d25e3ec17900bf5a9d6876ff16ceee31c4c0e0
patch
-
git.kernel.org
/stable/c/0c63333ff97bd1275294fd12840a0efe9d7a4c59
patch
-
git.kernel.org
/stable/c/935ee27d0904aa944cbcc979094c20e5ef62eead
patch
-
git.kernel.org
/stable/c/e38e86995df27f1f854063dab1f0c6a513db3faf
patch
-
access.redhat.com
/errata/RHSA-2026:33685
vendor-advisory
-
access.redhat.com
/errata/RHSA-2026:36073
vendor-advisory
-
access.redhat.com
/errata/RHSA-2026:36767
vendor-advisory
-
access.redhat.com
/errata/RHSA-2026:38902
vendor-advisory
-
access.redhat.com
/errata/RHSA-2026:30848
vendor-advisory
-
access.redhat.com
/errata/RHSA-2026:33743
vendor-advisory
-
access.redhat.com
/errata/RHSA-2026:47633
vendor-advisory
-
access.redhat.com
/errata/RHSA-2026:40068
vendor-advisory
-
access.redhat.com
/errata/RHSA-2026:40760
vendor-advisory
-
access.redhat.com
/errata/RHSA-2026:36049
vendor-advisory
-
access.redhat.com
/errata/RHSA-2026:35904
vendor-advisory
-
access.redhat.com
/security/cve/CVE-2026-46189
vdb-entry
-
bugzilla.redhat.com
/show_bug.cgi?id=2482588
issue-tracking
- security.access.redhat.com /data/csaf/v2/vex/2026/cve-2026-46189.json
Sources
- CVE List CVE-2026-46189
- NVD CVE-2026-46189
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.