NULL pointer dereference in Linux kernel - CVE-2024-26868

Vulnerability identifier: #VU90571

CSH Severity: Low

CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2024-26868

CWE-ID: CWE-476

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to NULL pointer dereference within the ff_layout_cancel_io() function in fs/nfs/flexfilelayout/flexfilelayout.c. A local user can perform a denial of service (DoS) attack.

Linux kernel
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Real Time 15
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for Real Time
Red Hat Enterprise Linux for Real Time for NFV
Red Hat Enterprise Linux for ARM 64
SUSE Linux Enterprise Live Patching
Public Cloud Module
SUSE Real Time Module
openSUSE Leap
Ubuntu
IBM DataPower Gateway
linux-gcp (Ubuntu package)
linux-aws (Ubuntu package)
kernel-livepatch-6_4_0-150600_10_5-rt
kernel-livepatch-6_4_0-150600_10_5-rt-debuginfo
kernel-livepatch-SLE15-SP6-RT_Update_1-debugsource
kernel (Red Hat package)
kernel-syms-azure
kernel-azure-extra-debuginfo
ocfs2-kmp-azure-debuginfo
kernel-azure-optional
dlm-kmp-azure
dlm-kmp-azure-debuginfo
kselftests-kmp-azure-debuginfo
kernel-azure-debuginfo
kernel-azure-extra
reiserfs-kmp-azure
kernel-azure-vdso-debuginfo
kernel-azure-vdso
kernel-devel-azure
gfs2-kmp-azure
kernel-azure
cluster-md-kmp-azure-debuginfo
kernel-azure-devel-debuginfo
gfs2-kmp-azure-debuginfo
cluster-md-kmp-azure
kernel-azure-livepatch-devel
ocfs2-kmp-azure
reiserfs-kmp-azure-debuginfo
kernel-azure-debugsource
kernel-azure-devel
kselftests-kmp-azure
kernel-azure-optional-debuginfo
kernel-source-azure
kernel-rt-vdso
dlm-kmp-rt
kernel-rt-optional-debuginfo
kernel-rt-livepatch-devel
kernel-rt_debug-vdso-debuginfo
kernel-rt_debug-debuginfo
kselftests-kmp-rt
ocfs2-kmp-rt
kernel-rt_debug-devel-debuginfo
kernel-rt-vdso-debuginfo
kernel-rt-devel
gfs2-kmp-rt-debuginfo
kernel-rt-devel-debuginfo
kernel-rt_debug-vdso
kselftests-kmp-rt-debuginfo
cluster-md-kmp-rt-debuginfo
kernel-rt_debug-debugsource
reiserfs-kmp-rt-debuginfo
kernel-rt_debug-devel
cluster-md-kmp-rt
reiserfs-kmp-rt
kernel-rt_debug-livepatch-devel
kernel-rt-debuginfo
gfs2-kmp-rt
kernel-rt-extra-debuginfo
dlm-kmp-rt-debuginfo
kernel-rt-extra
kernel-rt
kernel-rt_debug
kernel-source-rt
kernel-devel-rt
ocfs2-kmp-rt-debuginfo
kernel-rt-optional
kernel-syms-rt
kernel-rt-debugsource
linux-image-generic-64k (Ubuntu package)
linux-image-generic-64k-hwe-24.04 (Ubuntu package)
linux-image-generic-hwe-24.04 (Ubuntu package)
linux-image-generic-lpae (Ubuntu package)
linux-image-generic (Ubuntu package)
linux-image-kvm (Ubuntu package)
linux-image-virtual (Ubuntu package)
linux-image-virtual-hwe-24.04 (Ubuntu package)
linux-image-6.8.0-35-generic-64k (Ubuntu package)
linux-image-6.8.0-35-generic (Ubuntu package)
linux-image-6.8.0-35-lowlatency-64k (Ubuntu package)
linux-image-6.8.0-35-lowlatency (Ubuntu package)
linux-image-lowlatency-64k (Ubuntu package)
linux-image-lowlatency (Ubuntu package)
linux-image-6.8.0-1004-gke (Ubuntu package)
linux-image-gke (Ubuntu package)
linux-image-raspi (Ubuntu package)
linux-image-6.8.0-1005-raspi (Ubuntu package)
linux-image-6.8.0-1006-ibm (Ubuntu package)
linux-image-oracle-64k (Ubuntu package)
linux-image-oracle (Ubuntu package)
linux-image-6.8.0-1006-oracle-64k (Ubuntu package)
linux-image-6.8.0-1006-oracle (Ubuntu package)
linux-image-6.8.0-1006-oem (Ubuntu package)
linux-image-ibm-lts-24.04 (Ubuntu package)
linux-image-ibm-classic (Ubuntu package)
linux-image-ibm (Ubuntu package)
linux-image-oem-24.04a (Ubuntu package)
linux-image-oem-24.04 (Ubuntu package)
linux-image-azure-fde (Ubuntu package)
linux-image-azure (Ubuntu package)
linux-image-6.8.0-1008-azure-fde (Ubuntu package)
linux-image-6.8.0-1008-azure (Ubuntu package)

Install update from vendor's website.

Linux kernel - addressed in versions 6.1.83, 6.6.23, 6.7.11, 6.8.2
IBM DataPower Gateway - update to 10.6.4.0
linux-gcp (Ubuntu package) - update to 6.8.0-1008.9
linux-aws (Ubuntu package) - update to 6.8.0-1009.9
kernel-livepatch-6_4_0-150600_10_5-rt - update to 1-150600.1.5.1
kernel-livepatch-6_4_0-150600_10_5-rt-debuginfo - update to 1-150600.1.5.1
kernel-livepatch-SLE15-SP6-RT_Update_1-debugsource - update to 1-150600.1.5.1
kernel (Red Hat package) - update to 5.14.0-427.31.1.el9_4
kernel-syms-azure - update to 6.4.0-150600.8.5.1
kernel-azure-extra-debuginfo - update to 6.4.0-150600.8.5.4
ocfs2-kmp-azure-debuginfo - update to 6.4.0-150600.8.5.4
kernel-azure-optional - update to 6.4.0-150600.8.5.4
dlm-kmp-azure - update to 6.4.0-150600.8.5.4
dlm-kmp-azure-debuginfo - update to 6.4.0-150600.8.5.4
kselftests-kmp-azure-debuginfo - update to 6.4.0-150600.8.5.4
kernel-azure-debuginfo - update to 6.4.0-150600.8.5.4
kernel-azure-extra - update to 6.4.0-150600.8.5.4
reiserfs-kmp-azure - update to 6.4.0-150600.8.5.4
kernel-azure-vdso-debuginfo - update to 6.4.0-150600.8.5.4
kernel-azure-vdso - update to 6.4.0-150600.8.5.4
kernel-devel-azure - update to 6.4.0-150600.8.5.4
gfs2-kmp-azure - update to 6.4.0-150600.8.5.4
kernel-azure - update to 6.4.0-150600.8.5.4
cluster-md-kmp-azure-debuginfo - update to 6.4.0-150600.8.5.4
kernel-azure-devel-debuginfo - update to 6.4.0-150600.8.5.4
gfs2-kmp-azure-debuginfo - update to 6.4.0-150600.8.5.4
cluster-md-kmp-azure - update to 6.4.0-150600.8.5.4
kernel-azure-livepatch-devel - update to 6.4.0-150600.8.5.4
ocfs2-kmp-azure - update to 6.4.0-150600.8.5.4
reiserfs-kmp-azure-debuginfo - update to 6.4.0-150600.8.5.4
kernel-azure-debugsource - update to 6.4.0-150600.8.5.4
kernel-azure-devel - update to 6.4.0-150600.8.5.4
kselftests-kmp-azure - update to 6.4.0-150600.8.5.4
kernel-azure-optional-debuginfo - update to 6.4.0-150600.8.5.4
kernel-source-azure - update to 6.4.0-150600.8.5.4
kernel-rt-vdso - update to 6.4.0-150600.10.5.1
dlm-kmp-rt - update to 6.4.0-150600.10.5.1
kernel-rt-optional-debuginfo - update to 6.4.0-150600.10.5.1
kernel-rt-livepatch-devel - update to 6.4.0-150600.10.5.1
kernel-rt_debug-vdso-debuginfo - update to 6.4.0-150600.10.5.1
kernel-rt_debug-debuginfo - update to 6.4.0-150600.10.5.1
kselftests-kmp-rt - update to 6.4.0-150600.10.5.1
ocfs2-kmp-rt - update to 6.4.0-150600.10.5.1
kernel-rt_debug-devel-debuginfo - update to 6.4.0-150600.10.5.1
kernel-rt-vdso-debuginfo - update to 6.4.0-150600.10.5.1
kernel-rt-devel - update to 6.4.0-150600.10.5.1
gfs2-kmp-rt-debuginfo - update to 6.4.0-150600.10.5.1
kernel-rt-devel-debuginfo - update to 6.4.0-150600.10.5.1
kernel-rt_debug-vdso - update to 6.4.0-150600.10.5.1
kselftests-kmp-rt-debuginfo - update to 6.4.0-150600.10.5.1
cluster-md-kmp-rt-debuginfo - update to 6.4.0-150600.10.5.1
kernel-rt_debug-debugsource - update to 6.4.0-150600.10.5.1
reiserfs-kmp-rt-debuginfo - update to 6.4.0-150600.10.5.1
kernel-rt_debug-devel - update to 6.4.0-150600.10.5.1
cluster-md-kmp-rt - update to 6.4.0-150600.10.5.1
reiserfs-kmp-rt - update to 6.4.0-150600.10.5.1
kernel-rt_debug-livepatch-devel - update to 6.4.0-150600.10.5.1
kernel-rt-debuginfo - update to 6.4.0-150600.10.5.1
gfs2-kmp-rt - update to 6.4.0-150600.10.5.1
kernel-rt-extra-debuginfo - update to 6.4.0-150600.10.5.1
dlm-kmp-rt-debuginfo - update to 6.4.0-150600.10.5.1
kernel-rt-extra - update to 6.4.0-150600.10.5.1
kernel-rt - update to 6.4.0-150600.10.5.1
kernel-rt_debug - update to 6.4.0-150600.10.5.1
kernel-source-rt - update to 6.4.0-150600.10.5.1
kernel-devel-rt - update to 6.4.0-150600.10.5.1
ocfs2-kmp-rt-debuginfo - update to 6.4.0-150600.10.5.1
kernel-rt-optional - update to 6.4.0-150600.10.5.1
kernel-syms-rt - update to 6.4.0-150600.10.5.1
kernel-rt-debugsource - update to 6.4.0-150600.10.5.1
linux-image-generic-64k (Ubuntu package) - update to 6.8.0-35.35
linux-image-generic-64k-hwe-24.04 (Ubuntu package) - update to 6.8.0-35.35
linux-image-generic-hwe-24.04 (Ubuntu package) - update to 6.8.0-35.35
linux-image-generic-lpae (Ubuntu package) - update to 6.8.0-35.35
linux-image-generic (Ubuntu package) - update to 6.8.0-35.35
linux-image-kvm (Ubuntu package) - update to 6.8.0-35.35
linux-image-virtual (Ubuntu package) - update to 6.8.0-35.35
linux-image-virtual-hwe-24.04 (Ubuntu package) - update to 6.8.0-35.35
linux-image-6.8.0-35-generic-64k (Ubuntu package) - update to 6.8.0-35.35+1
linux-image-6.8.0-35-generic (Ubuntu package) - update to 6.8.0-35.35+1
linux-image-6.8.0-35-lowlatency-64k (Ubuntu package) - update to 6.8.0-35.35.1
linux-image-6.8.0-35-lowlatency (Ubuntu package) - update to 6.8.0-35.35.1
linux-image-lowlatency-64k (Ubuntu package) - update to 6.8.0-35.35.1
linux-image-lowlatency (Ubuntu package) - update to 6.8.0-35.35.1
linux-image-6.8.0-1004-gke (Ubuntu package) - update to 6.8.0-1004.7
linux-image-gke (Ubuntu package) - update to 6.8.0-1004.7
linux-image-raspi (Ubuntu package) - update to 6.8.0-1005.5
linux-image-6.8.0-1005-raspi (Ubuntu package) - update to 6.8.0-1005.5
linux-image-6.8.0-1006-ibm (Ubuntu package) - update to 6.8.0-1006.6
linux-image-oracle-64k (Ubuntu package) - update to 6.8.0-1006.6
linux-image-oracle (Ubuntu package) - update to 6.8.0-1006.6
linux-image-6.8.0-1006-oracle-64k (Ubuntu package) - update to 6.8.0-1006.6
linux-image-6.8.0-1006-oracle (Ubuntu package) - update to 6.8.0-1006.6
linux-image-6.8.0-1006-oem (Ubuntu package) - update to 6.8.0-1006.6
linux-image-ibm-lts-24.04 (Ubuntu package) - update to 6.8.0-1006.6
linux-image-ibm-classic (Ubuntu package) - update to 6.8.0-1006.6
linux-image-ibm (Ubuntu package) - update to 6.8.0-1006.6
linux-image-oem-24.04a (Ubuntu package) - update to 6.8.0-1006.6+1
linux-image-oem-24.04 (Ubuntu package) - update to 6.8.0-1006.6+1
linux-image-azure-fde (Ubuntu package) - update to 6.8.0-1008.8
linux-image-azure (Ubuntu package) - update to 6.8.0-1008.8
linux-image-6.8.0-1008-azure-fde (Ubuntu package) - update to 6.8.0-1008.8
linux-image-6.8.0-1008-azure (Ubuntu package) - update to 6.8.0-1008.8

• https://git.kernel.org/stable/c/31db25e3141b20e2a76a9f219eeca52e3cab126c
• https://git.kernel.org/stable/c/7ca651b4ec4a049f5a46a0e5ff921b86b91c47c5
• https://git.kernel.org/stable/c/5ada9016b1217498fad876a3d5b07645cc955608
• https://git.kernel.org/stable/c/dac068f164ad05b35e7c0be13f138c3f6adca58f
• https://git.kernel.org/stable/c/719fcafe07c12646691bd62d7f8d94d657fa0766
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.83
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.23
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.11
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8.2

• NULL pointer dereference in Linux kernel nfs flexfilelayout
• Ubuntu update for linux
• Ubuntu update for linux-oem-6.8
• Ubuntu update for linux-azure
• Ubuntu update for linux-oracle
• SUSE update for the Linux Kernel
• Red Hat Enterprise Linux 9 update for kernel
• SUSE update for the Linux Kernel
• Multiple vulnerabilities in IBM DataPower Gateway
• Ubuntu update for linux-aws, linux-gcp