Use-after-free in Linux kernel - CVE-2025-21929

Vulnerability identifier: #VU106601

CSH Severity: Low

CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2025-21929

CWE-ID: CWE-416

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the hid_ishtp_cl_remove() function in drivers/hid/intel-ish-hid/ishtp-hid-client.c. A local user can escalate privileges on the system.

Linux kernel
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise High Availability Extension 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Workstation Extension 15
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for x86_64
Development Tools Module
Basesystem Module
SUSE Linux Enterprise Live Patching
Public Cloud Module
SUSE Real Time Module
Legacy Module
Ubuntu
Netezza Appliance
kernel-livepatch-6_4_0-150700_7_3-rt
kernel-livepatch-SLE15-SP7-RT_Update_1-debugsource
kernel-livepatch-6_4_0-150700_7_3-rt-debuginfo
kernel-livepatch-6_4_0-150700_53_3-default
kernel-livepatch-6_4_0-150700_53_3-default-debuginfo
kernel-livepatch-SLE15-SP7_Update_1-debugsource
kernel (Red Hat package)
kernel-rt-devel
kernel-rt
kernel-rt-debuginfo
ocfs2-kmp-rt
ocfs2-kmp-rt-debuginfo
kernel-rt-debugsource
cluster-md-kmp-rt-debuginfo
kernel-rt_debug-debuginfo
cluster-md-kmp-rt
kernel-syms-rt
gfs2-kmp-rt-debuginfo
kernel-rt_debug-devel-debuginfo
kernel-rt_debug-devel
dlm-kmp-rt
kernel-rt_debug-debugsource
dlm-kmp-rt-debuginfo
kernel-rt-devel-debuginfo
gfs2-kmp-rt
kernel-source-rt
kernel-devel-rt
kernel-rt_debug
kernel-source-azure
kernel-devel-azure
kernel-syms-azure
kernel-azure-debuginfo
kernel-azure-debugsource
kernel-azure-devel-debuginfo
kernel-azure
kernel-azure-devel
dlm-kmp-default
kernel-default
gfs2-kmp-default-debuginfo
ocfs2-kmp-default-debuginfo
kernel-default-extra
kernel-default-extra-debuginfo
kernel-default-livepatch
kernel-default-livepatch-devel
kernel-zfcpdump-debuginfo
cluster-md-kmp-default-debuginfo
ocfs2-kmp-default
cluster-md-kmp-default
dlm-kmp-default-debuginfo
gfs2-kmp-default
kernel-default-debuginfo
kernel-default-debugsource
reiserfs-kmp-default-debuginfo
reiserfs-kmp-default
kernel-docs
kernel-zfcpdump
kernel-zfcpdump-debugsource
kernel-64kb
kernel-obs-build-debugsource
kernel-syms
kernel-obs-build
kernel-source
kernel-macros
kernel-default-devel
kernel-64kb-devel
kernel-64kb-debugsource
kernel-64kb-debuginfo
kernel-devel
kernel-64kb-devel-debuginfo
kernel-default-devel-debuginfo
kernel-default-base
linux (Ubuntu package)
linux-hwe-6.8 (Ubuntu package)
linux-azure-nvidia (Ubuntu package)
linux-azure (Ubuntu package)
linux-ibm (Ubuntu package)
linux-oracle (Ubuntu package)
linux-oracle-6.8 (Ubuntu package)
linux-aws-6.8 (Ubuntu package)
linux-nvidia (Ubuntu package)
linux-raspi (Ubuntu package)
linux-raspi-realtime (Ubuntu package)
linux-realtime (Ubuntu package)
linux-realtime-6.8 (Ubuntu package)
linux-lowlatency (Ubuntu package)
linux-oem-6.11 (Ubuntu package)
Red Hat OpenShift Container Platform

Install update from vendor's website.

Linux kernel - update to 6.13.7
Netezza Appliance - update to 1.0.1.0 fp278500
kernel-livepatch-6_4_0-150700_7_3-rt - update to 1-150700.1.3.1
kernel-livepatch-SLE15-SP7-RT_Update_1-debugsource - update to 1-150700.1.3.1
kernel-livepatch-6_4_0-150700_7_3-rt-debuginfo - update to 1-150700.1.3.1
kernel-livepatch-6_4_0-150700_53_3-default - update to 1-150700.15.3.1
kernel-livepatch-6_4_0-150700_53_3-default-debuginfo - update to 1-150700.15.3.1
kernel-livepatch-SLE15-SP7_Update_1-debugsource - update to 1-150700.15.3.1
Red Hat OpenShift Container Platform - update to 4.19.7
kernel (Red Hat package) - addressed in versions 5.14.0-570.32.1.el9_6, 6.12.0-55.25.1.el10_0
kernel-rt-devel - update to 6.4.0-150700.7.3.1
kernel-rt - update to 6.4.0-150700.7.3.1
kernel-rt-debuginfo - update to 6.4.0-150700.7.3.1
ocfs2-kmp-rt - update to 6.4.0-150700.7.3.1
ocfs2-kmp-rt-debuginfo - update to 6.4.0-150700.7.3.1
kernel-rt-debugsource - update to 6.4.0-150700.7.3.1
cluster-md-kmp-rt-debuginfo - update to 6.4.0-150700.7.3.1
kernel-rt_debug-debuginfo - update to 6.4.0-150700.7.3.1
cluster-md-kmp-rt - update to 6.4.0-150700.7.3.1
kernel-syms-rt - update to 6.4.0-150700.7.3.1
gfs2-kmp-rt-debuginfo - update to 6.4.0-150700.7.3.1
kernel-rt_debug-devel-debuginfo - update to 6.4.0-150700.7.3.1
kernel-rt_debug-devel - update to 6.4.0-150700.7.3.1
dlm-kmp-rt - update to 6.4.0-150700.7.3.1
kernel-rt_debug-debugsource - update to 6.4.0-150700.7.3.1
dlm-kmp-rt-debuginfo - update to 6.4.0-150700.7.3.1
kernel-rt-devel-debuginfo - update to 6.4.0-150700.7.3.1
gfs2-kmp-rt - update to 6.4.0-150700.7.3.1
kernel-source-rt - update to 6.4.0-150700.7.3.1
kernel-devel-rt - update to 6.4.0-150700.7.3.1
kernel-rt_debug - update to 6.4.0-150700.7.3.1
kernel-source-azure - update to 6.4.0-150700.20.3.1
kernel-devel-azure - update to 6.4.0-150700.20.3.1
kernel-syms-azure - update to 6.4.0-150700.20.3.1
kernel-azure-debuginfo - update to 6.4.0-150700.20.3.1
kernel-azure-debugsource - update to 6.4.0-150700.20.3.1
kernel-azure-devel-debuginfo - update to 6.4.0-150700.20.3.1
kernel-azure - update to 6.4.0-150700.20.3.1
kernel-azure-devel - update to 6.4.0-150700.20.3.1
dlm-kmp-default - update to 6.4.0-150700.53.3.1
kernel-default - update to 6.4.0-150700.53.3.1
gfs2-kmp-default-debuginfo - update to 6.4.0-150700.53.3.1
ocfs2-kmp-default-debuginfo - update to 6.4.0-150700.53.3.1
kernel-default-extra - update to 6.4.0-150700.53.3.1
kernel-default-extra-debuginfo - update to 6.4.0-150700.53.3.1
kernel-default-livepatch - update to 6.4.0-150700.53.3.1
kernel-default-livepatch-devel - update to 6.4.0-150700.53.3.1
kernel-zfcpdump-debuginfo - update to 6.4.0-150700.53.3.1
cluster-md-kmp-default-debuginfo - update to 6.4.0-150700.53.3.1
ocfs2-kmp-default - update to 6.4.0-150700.53.3.1
cluster-md-kmp-default - update to 6.4.0-150700.53.3.1
dlm-kmp-default-debuginfo - update to 6.4.0-150700.53.3.1
gfs2-kmp-default - update to 6.4.0-150700.53.3.1
kernel-default-debuginfo - update to 6.4.0-150700.53.3.1
kernel-default-debugsource - update to 6.4.0-150700.53.3.1
reiserfs-kmp-default-debuginfo - update to 6.4.0-150700.53.3.1
reiserfs-kmp-default - update to 6.4.0-150700.53.3.1
kernel-docs - update to 6.4.0-150700.53.3.1
kernel-zfcpdump - update to 6.4.0-150700.53.3.1
kernel-zfcpdump-debugsource - update to 6.4.0-150700.53.3.1
kernel-64kb - update to 6.4.0-150700.53.3.1
kernel-obs-build-debugsource - update to 6.4.0-150700.53.3.1
kernel-syms - update to 6.4.0-150700.53.3.1
kernel-obs-build - update to 6.4.0-150700.53.3.1
kernel-source - update to 6.4.0-150700.53.3.1
kernel-macros - update to 6.4.0-150700.53.3.1
kernel-default-devel - update to 6.4.0-150700.53.3.1
kernel-64kb-devel - update to 6.4.0-150700.53.3.1
kernel-64kb-debugsource - update to 6.4.0-150700.53.3.1
kernel-64kb-debuginfo - update to 6.4.0-150700.53.3.1
kernel-devel - update to 6.4.0-150700.53.3.1
kernel-64kb-devel-debuginfo - update to 6.4.0-150700.53.3.1
kernel-default-devel-debuginfo - update to 6.4.0-150700.53.3.1
kernel-default-base - update to 6.4.0-150700.53.3.1.150700.17.2.1
linux (Ubuntu package) - addressed in versions 6.8.0-84.84, 6.8.0-84.84.1, 6.8.0-84.84.1~22.04.1, 6.8.0-1023.25, 6.8.0-1036.40, 6.8.0-1039.41, 6.8.0-1040.42, 6.11.0-28.28, 6.11.0-28.28~24.04.1, 6.11.0-1011.11, 6.11.0-1014.14, 6.11.0-1015.16, 6.11.0-1016.16, 6.11.0-1016.16~24.04.1, 6.11.0-1017.18
linux-hwe-6.8 (Ubuntu package) - addressed in versions 6.8.0-84.84~22.04.1, 6.8.0-85.85~22.04.1
linux-azure-nvidia (Ubuntu package) - update to 6.8.0-1025.27
linux-azure (Ubuntu package) - addressed in versions 6.8.0-1036.42~22.04.1, 6.8.0-1038.44, 6.11.0-1018.18, 6.11.0-1018.18~24.04.1
linux-ibm (Ubuntu package) - addressed in versions 6.8.0-1037.37, 6.8.0-1037.37~22.04.1
linux-oracle (Ubuntu package) - update to 6.8.0-1037.38
linux-oracle-6.8 (Ubuntu package) - update to 6.8.0-1037.38~22.04.1
linux-aws-6.8 (Ubuntu package) - addressed in versions 6.8.0-1039.41~22.04.1, 6.8.0-1040.42~22.04.1
linux-nvidia (Ubuntu package) - addressed in versions 6.8.0-1039.42, 6.8.0-1039.42.1, 6.8.0-1039.42~22.04.1
linux-raspi (Ubuntu package) - update to 6.8.0-1039.43
linux-raspi-realtime (Ubuntu package) - update to 6.8.0-2031.32
linux-realtime (Ubuntu package) - update to 6.8.1-1034.35
linux-realtime-6.8 (Ubuntu package) - update to 6.8.1-1034.35~22.04.1
linux-lowlatency (Ubuntu package) - addressed in versions 6.11.0-1015.16, 6.11.0-1015.16~24.04.2
linux-oem-6.11 (Ubuntu package) - update to 6.11.0-1024.24

• https://git.kernel.org/stable/c/823987841424289339fdb4ba90e6d2c3792836db
• https://git.kernel.org/stable/c/9c677fe859a73f5dd3dd84c27f99e10d28047c73
• https://git.kernel.org/stable/c/e040f11fbca868c6d151e9f2c5730c476abfcf17
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.13.7

• Use-after-free in Linux kernel hid intel-ish-hid driver
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• Ubuntu update for linux
• Ubuntu update for linux-oem-6.11
• Ubuntu update for linux-lowlatency
• Ubuntu update for linux-azure
• Red Hat Enterprise Linux 10 update for kernel
• Red Hat Enterprise Linux 9 update for kernel
• Multiple vulnerabilities in Red Hat OpenShift Container Platform 4.19
• Ubuntu update for linux-nvidia
• Ubuntu update for linux
• Ubuntu update for linux-realtime
• Ubuntu update for linux-aws-6.8
• Ubuntu update for linux-realtime-6.8
• Ubuntu update for linux-ibm
• Ubuntu update for linux-hwe-6.8
• Ubuntu update for linux-raspi
• Ubuntu update for linux-hwe-6.8
• Ubuntu update for linux-raspi-realtime
• Ubuntu update for linux-azure
• Ubuntu update for linux-oracle
• Ubuntu update for linux-azure-nvidia
• Ubuntu update for linux-oracle-6.8
• Multiple vulnerabilities in IBM Netezza Appliance