Use-after-free in Linux kernel - CVE-2025-40091

Vulnerability identifier: #VU117846

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-2025-40091

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 ixgbe_remove() function in drivers/net/ethernet/intel/ixgbe/ixgbe_main.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
Development Tools Module
SUSE Real Time Module
SUSE Linux Enterprise Live Patching
Public Cloud Module
Legacy Module
Basesystem Module
Ubuntu
kernel-livepatch-SLE15-SP7-RT_Update_6-debugsource
kernel-livepatch-6_4_0-150700_7_22-rt-debuginfo
kernel-livepatch-6_4_0-150700_7_22-rt
kernel-livepatch-SLE15-SP7_Update_6-debugsource
kernel-livepatch-6_4_0-150700_53_22-default
kernel-livepatch-6_4_0-150700_53_22-default-debuginfo
kernel-rt-devel
kernel-rt-debuginfo
kernel-rt-debugsource
gfs2-kmp-rt-debuginfo
ocfs2-kmp-rt
dlm-kmp-rt-debuginfo
ocfs2-kmp-rt-debuginfo
cluster-md-kmp-rt
kernel-syms-rt
kernel-rt
cluster-md-kmp-rt-debuginfo
kernel-rt-devel-debuginfo
gfs2-kmp-rt
kernel-source-rt
kernel-devel-rt
dlm-kmp-rt
kernel-azure-devel
kernel-azure
kernel-azure-debugsource
kernel-syms-azure
kernel-azure-debuginfo
kernel-azure-devel-debuginfo
kernel-devel-azure
kernel-source-azure
kernel-default-livepatch
kernel-64kb-debuginfo
kernel-default-livepatch-devel
kernel-default-extra
kernel-64kb
kernel-64kb-devel
kernel-64kb-devel-debuginfo
kernel-64kb-debugsource
kernel-default
kernel-default-debuginfo
kernel-default-debugsource
kernel-default-devel-debuginfo
kernel-default-devel
kernel-macros
kernel-devel
kernel-zfcpdump
kernel-zfcpdump-debuginfo
kernel-zfcpdump-debugsource
kernel-docs
kernel-syms
kernel-default-extra-debuginfo
gfs2-kmp-default
cluster-md-kmp-default-debuginfo
ocfs2-kmp-default
ocfs2-kmp-default-debuginfo
dlm-kmp-default-debuginfo
cluster-md-kmp-default
dlm-kmp-default
gfs2-kmp-default-debuginfo
reiserfs-kmp-default
reiserfs-kmp-default-debuginfo
kernel-source
kernel-obs-build
kernel-obs-build-debugsource
kernel-default-base
linux (Ubuntu package)
linux-gcp (Ubuntu package)
linux-aws (Ubuntu package)
linux-azure (Ubuntu package)
linux-oem-6.17 (Ubuntu package)

Install update from vendor's repository.

kernel-livepatch-SLE15-SP7-RT_Update_6-debugsource - update to 1-150700.1.3.1
kernel-livepatch-6_4_0-150700_7_22-rt-debuginfo - update to 1-150700.1.3.1
kernel-livepatch-6_4_0-150700_7_22-rt - update to 1-150700.1.3.1
kernel-livepatch-SLE15-SP7_Update_6-debugsource - update to 1-150700.15.3.1
kernel-livepatch-6_4_0-150700_53_22-default - update to 1-150700.15.3.1
kernel-livepatch-6_4_0-150700_53_22-default-debuginfo - update to 1-150700.15.3.1
kernel-rt-devel - update to 6.4.0-150700.7.22.1
kernel-rt-debuginfo - update to 6.4.0-150700.7.22.1
kernel-rt-debugsource - update to 6.4.0-150700.7.22.1
gfs2-kmp-rt-debuginfo - update to 6.4.0-150700.7.22.1
ocfs2-kmp-rt - update to 6.4.0-150700.7.22.1
dlm-kmp-rt-debuginfo - update to 6.4.0-150700.7.22.1
ocfs2-kmp-rt-debuginfo - update to 6.4.0-150700.7.22.1
cluster-md-kmp-rt - update to 6.4.0-150700.7.22.1
kernel-syms-rt - update to 6.4.0-150700.7.22.1
kernel-rt - update to 6.4.0-150700.7.22.1
cluster-md-kmp-rt-debuginfo - update to 6.4.0-150700.7.22.1
kernel-rt-devel-debuginfo - update to 6.4.0-150700.7.22.1
gfs2-kmp-rt - update to 6.4.0-150700.7.22.1
kernel-source-rt - update to 6.4.0-150700.7.22.1
kernel-devel-rt - update to 6.4.0-150700.7.22.1
dlm-kmp-rt - update to 6.4.0-150700.7.22.1
kernel-azure-devel - update to 6.4.0-150700.20.18.1
kernel-azure - update to 6.4.0-150700.20.18.1
kernel-azure-debugsource - update to 6.4.0-150700.20.18.1
kernel-syms-azure - update to 6.4.0-150700.20.18.1
kernel-azure-debuginfo - update to 6.4.0-150700.20.18.1
kernel-azure-devel-debuginfo - update to 6.4.0-150700.20.18.1
kernel-devel-azure - update to 6.4.0-150700.20.18.1
kernel-source-azure - update to 6.4.0-150700.20.18.1
kernel-default-livepatch - update to 6.4.0-150700.53.22.1
kernel-64kb-debuginfo - update to 6.4.0-150700.53.22.1
kernel-default-livepatch-devel - update to 6.4.0-150700.53.22.1
kernel-default-extra - update to 6.4.0-150700.53.22.1
kernel-64kb - update to 6.4.0-150700.53.22.1
kernel-64kb-devel - update to 6.4.0-150700.53.22.1
kernel-64kb-devel-debuginfo - update to 6.4.0-150700.53.22.1
kernel-64kb-debugsource - update to 6.4.0-150700.53.22.1
kernel-default - update to 6.4.0-150700.53.22.1
kernel-default-debuginfo - update to 6.4.0-150700.53.22.1
kernel-default-debugsource - update to 6.4.0-150700.53.22.1
kernel-default-devel-debuginfo - update to 6.4.0-150700.53.22.1
kernel-default-devel - update to 6.4.0-150700.53.22.1
kernel-macros - update to 6.4.0-150700.53.22.1
kernel-devel - update to 6.4.0-150700.53.22.1
kernel-zfcpdump - update to 6.4.0-150700.53.22.1
kernel-zfcpdump-debuginfo - update to 6.4.0-150700.53.22.1
kernel-zfcpdump-debugsource - update to 6.4.0-150700.53.22.1
kernel-docs - update to 6.4.0-150700.53.22.1
kernel-syms - update to 6.4.0-150700.53.22.1
kernel-default-extra-debuginfo - update to 6.4.0-150700.53.22.1
gfs2-kmp-default - update to 6.4.0-150700.53.22.1
cluster-md-kmp-default-debuginfo - update to 6.4.0-150700.53.22.1
ocfs2-kmp-default - update to 6.4.0-150700.53.22.1
ocfs2-kmp-default-debuginfo - update to 6.4.0-150700.53.22.1
dlm-kmp-default-debuginfo - update to 6.4.0-150700.53.22.1
cluster-md-kmp-default - update to 6.4.0-150700.53.22.1
dlm-kmp-default - update to 6.4.0-150700.53.22.1
gfs2-kmp-default-debuginfo - update to 6.4.0-150700.53.22.1
reiserfs-kmp-default - update to 6.4.0-150700.53.22.1
reiserfs-kmp-default-debuginfo - update to 6.4.0-150700.53.22.1
kernel-source - update to 6.4.0-150700.53.22.1
kernel-obs-build - update to 6.4.0-150700.53.22.1
kernel-obs-build-debugsource - update to 6.4.0-150700.53.22.1
kernel-default-base - update to 6.4.0-150700.53.22.1.150700.17.15.1
linux (Ubuntu package) - addressed in versions 6.17.0-14.14, 6.17.0-1006.7, 6.17.0-1008.8
linux-gcp (Ubuntu package) - update to 6.17.0-1007.7
linux-aws (Ubuntu package) - update to 6.17.0-1007.7
linux-azure (Ubuntu package) - update to 6.17.0-1008.8
linux-oem-6.17 (Ubuntu package) - update to 6.17.0-1011.11

• https://git.kernel.org/stable/c/5feef67b646d8f5064bac288e22204ffba2b9a4a
• https://git.kernel.org/stable/c/df445969aa727cd64f3f29dc1f85fb60aca238d1

• Use-after-free in Linux kernel intel ixgbe driver
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• Ubuntu update for linux-gcp
• Ubuntu update for linux
• Ubuntu update for linux-aws
• Ubuntu update for linux-oem-6.17
• Ubuntu update for linux-azure