NULL pointer dereference in Linux kernel - CVE-2025-38243

Vulnerability identifier: #VU112777

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-2025-38243

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 replay_one_extent(), drop_one_dir_item() and unlink_inode_for_log_replay() functions in fs/btrfs/tree-log.c. A local user can perform a denial of service (DoS) attack.

Linux kernel
SUSE Linux Enterprise Server 15 SP6
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise High Availability Extension 15
SUSE Linux Enterprise Workstation Extension 15
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise Live Patching
SUSE Real Time Module
Basesystem Module
Public Cloud Module
Legacy Module
Development Tools Module
openSUSE Leap
kernel-livepatch-6_4_0-150600_23_87-default
kernel-livepatch-6_4_0-150600_23_87-default-debuginfo
kernel-livepatch-SLE15-SP6_Update_20-debugsource
kernel-livepatch-SLE15-SP7-RT_Update_9-debugsource
kernel-livepatch-6_4_0-150700_7_31-rt
kernel-livepatch-6_4_0-150700_7_31-rt-debuginfo
kernel-livepatch-SLE15-SP7_Update_9-debugsource
kernel-livepatch-6_4_0-150700_53_31-default-debuginfo
kernel-livepatch-6_4_0-150700_53_31-default
kernel-obs-qa
dtb-aarch64
reiserfs-kmp-default-debuginfo
kernel-default-livepatch
kernel-zfcpdump-debuginfo
kernel-zfcpdump
kernel-kvmsmall
kernel-obs-build
kernel-default-devel-debuginfo
kernel-default-livepatch-devel
kernel-obs-build-debugsource
kernel-default
kernel-default-optional-debuginfo
dlm-kmp-default-debuginfo
kernel-default-devel
gfs2-kmp-default-debuginfo
cluster-md-kmp-default
gfs2-kmp-default
kernel-default-extra-debuginfo
ocfs2-kmp-default-debuginfo
kselftests-kmp-default-debuginfo
kselftests-kmp-default
kernel-syms
cluster-md-kmp-default-debuginfo
kernel-default-optional
kernel-default-debugsource
dtb-qcom
kernel-64kb-extra-debuginfo
dtb-sprd
reiserfs-kmp-64kb-debuginfo
dtb-amd
dtb-altera
dtb-apm
cluster-md-kmp-64kb-debuginfo
dtb-renesas
dtb-lg
dlm-kmp-64kb
kernel-64kb-optional-debuginfo
dtb-hisilicon
dtb-amazon
dtb-freescale
kernel-zfcpdump-debugsource
gfs2-kmp-64kb
kselftests-kmp-64kb-debuginfo
cluster-md-kmp-64kb
gfs2-kmp-64kb-debuginfo
dtb-nvidia
dtb-broadcom
dtb-mediatek
dtb-marvell
kernel-64kb-debuginfo
kernel-64kb-debugsource
kernel-64kb-devel-debuginfo
kernel-64kb-devel
dtb-amlogic
ocfs2-kmp-default
kernel-64kb-optional
kernel-docs-html
kernel-macros
kernel-source-vanilla
kernel-source
kernel-docs
dtb-allwinner
dtb-socionext
ocfs2-kmp-64kb-debuginfo
dtb-cavium
kernel-64kb-extra
dlm-kmp-default
dtb-apple
ocfs2-kmp-64kb
dtb-exynos
dtb-xilinx
dlm-kmp-64kb-debuginfo
kselftests-kmp-64kb
reiserfs-kmp-64kb
dtb-rockchip
dtb-arm
kernel-64kb
kernel-debug
kernel-default-debuginfo
reiserfs-kmp-default
kernel-default-extra
kernel-kvmsmall-debugsource
kernel-kvmsmall-debuginfo
kernel-kvmsmall-devel-debuginfo
kernel-kvmsmall-devel
kernel-debug-vdso
kernel-debug-vdso-debuginfo
kernel-kvmsmall-vdso-debuginfo
kernel-default-vdso
kernel-default-vdso-debuginfo
kernel-debug-debugsource
kernel-debug-devel
kernel-debug-devel-debuginfo
kernel-kvmsmall-vdso
kernel-debug-debuginfo
kernel-devel
kernel-default-base
kernel-default-base-rebuild
kernel-source-rt
kernel-devel-rt
kernel-syms-rt
cluster-md-kmp-rt-debuginfo
ocfs2-kmp-rt
gfs2-kmp-rt-debuginfo
kernel-rt-debuginfo
ocfs2-kmp-rt-debuginfo
dlm-kmp-rt-debuginfo
gfs2-kmp-rt
kernel-rt-devel
cluster-md-kmp-rt
kernel-rt-devel-debuginfo
dlm-kmp-rt
kernel-rt-debugsource
kernel-rt
kernel-devel-azure
kernel-source-azure
kernel-azure-devel-debuginfo
kernel-azure-debugsource
kernel-syms-azure
kernel-azure-devel
kernel-azure-debuginfo
kernel-azure

Install update from vendor's repository.

kernel-livepatch-6_4_0-150600_23_87-default - update to 1-150600.13.3.1
kernel-livepatch-6_4_0-150600_23_87-default-debuginfo - update to 1-150600.13.3.1
kernel-livepatch-SLE15-SP6_Update_20-debugsource - update to 1-150600.13.3.1
kernel-livepatch-SLE15-SP7-RT_Update_9-debugsource - update to 1-150700.1.3.2
kernel-livepatch-6_4_0-150700_7_31-rt - update to 1-150700.1.3.2
kernel-livepatch-6_4_0-150700_7_31-rt-debuginfo - update to 1-150700.1.3.2
kernel-livepatch-SLE15-SP7_Update_9-debugsource - update to 1-150700.15.3.1
kernel-livepatch-6_4_0-150700_53_31-default-debuginfo - update to 1-150700.15.3.1
kernel-livepatch-6_4_0-150700_53_31-default - update to 1-150700.15.3.1
kernel-obs-qa - update to 6.4.0-150600.23.87.1
dtb-aarch64 - update to 6.4.0-150600.23.87.1
reiserfs-kmp-default-debuginfo - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.31.1
kernel-default-livepatch - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.31.1
kernel-zfcpdump-debuginfo - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.31.1
kernel-zfcpdump - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.31.1
kernel-kvmsmall - update to 6.4.0-150600.23.87.1
kernel-obs-build - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.31.1
kernel-default-devel-debuginfo - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.31.1
kernel-default-livepatch-devel - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.31.1
kernel-obs-build-debugsource - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.31.1
kernel-default - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.31.1
kernel-default-optional-debuginfo - update to 6.4.0-150600.23.87.1
dlm-kmp-default-debuginfo - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.31.1
kernel-default-devel - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.31.1
gfs2-kmp-default-debuginfo - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.31.1
cluster-md-kmp-default - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.31.1
gfs2-kmp-default - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.31.1
kernel-default-extra-debuginfo - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.31.1
ocfs2-kmp-default-debuginfo - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.31.1
kselftests-kmp-default-debuginfo - update to 6.4.0-150600.23.87.1
kselftests-kmp-default - update to 6.4.0-150600.23.87.1
kernel-syms - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.31.1
cluster-md-kmp-default-debuginfo - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.31.1
kernel-default-optional - update to 6.4.0-150600.23.87.1
kernel-default-debugsource - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.31.1
dtb-qcom - update to 6.4.0-150600.23.87.1
kernel-64kb-extra-debuginfo - update to 6.4.0-150600.23.87.1
dtb-sprd - update to 6.4.0-150600.23.87.1
reiserfs-kmp-64kb-debuginfo - update to 6.4.0-150600.23.87.1
dtb-amd - update to 6.4.0-150600.23.87.1
dtb-altera - update to 6.4.0-150600.23.87.1
dtb-apm - update to 6.4.0-150600.23.87.1
cluster-md-kmp-64kb-debuginfo - update to 6.4.0-150600.23.87.1
dtb-renesas - update to 6.4.0-150600.23.87.1
dtb-lg - update to 6.4.0-150600.23.87.1
dlm-kmp-64kb - update to 6.4.0-150600.23.87.1
kernel-64kb-optional-debuginfo - update to 6.4.0-150600.23.87.1
dtb-hisilicon - update to 6.4.0-150600.23.87.1
dtb-amazon - update to 6.4.0-150600.23.87.1
dtb-freescale - update to 6.4.0-150600.23.87.1
kernel-zfcpdump-debugsource - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.31.1
gfs2-kmp-64kb - update to 6.4.0-150600.23.87.1
kselftests-kmp-64kb-debuginfo - update to 6.4.0-150600.23.87.1
cluster-md-kmp-64kb - update to 6.4.0-150600.23.87.1
gfs2-kmp-64kb-debuginfo - update to 6.4.0-150600.23.87.1
dtb-nvidia - update to 6.4.0-150600.23.87.1
dtb-broadcom - update to 6.4.0-150600.23.87.1
dtb-mediatek - update to 6.4.0-150600.23.87.1
dtb-marvell - update to 6.4.0-150600.23.87.1
kernel-64kb-debuginfo - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.31.1
kernel-64kb-debugsource - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.31.1
kernel-64kb-devel-debuginfo - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.31.1
kernel-64kb-devel - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.31.1
dtb-amlogic - update to 6.4.0-150600.23.87.1
ocfs2-kmp-default - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.31.1
kernel-64kb-optional - update to 6.4.0-150600.23.87.1
kernel-docs-html - update to 6.4.0-150600.23.87.1
kernel-macros - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.31.1
kernel-source-vanilla - update to 6.4.0-150600.23.87.1
kernel-source - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.31.1
kernel-docs - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.31.1
dtb-allwinner - update to 6.4.0-150600.23.87.1
dtb-socionext - update to 6.4.0-150600.23.87.1
ocfs2-kmp-64kb-debuginfo - update to 6.4.0-150600.23.87.1
dtb-cavium - update to 6.4.0-150600.23.87.1
kernel-64kb-extra - update to 6.4.0-150600.23.87.1
dlm-kmp-default - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.31.1
dtb-apple - update to 6.4.0-150600.23.87.1
ocfs2-kmp-64kb - update to 6.4.0-150600.23.87.1
dtb-exynos - update to 6.4.0-150600.23.87.1
dtb-xilinx - update to 6.4.0-150600.23.87.1
dlm-kmp-64kb-debuginfo - update to 6.4.0-150600.23.87.1
kselftests-kmp-64kb - update to 6.4.0-150600.23.87.1
reiserfs-kmp-64kb - update to 6.4.0-150600.23.87.1
dtb-rockchip - update to 6.4.0-150600.23.87.1
dtb-arm - update to 6.4.0-150600.23.87.1
kernel-64kb - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.31.1
kernel-debug - update to 6.4.0-150600.23.87.1
kernel-default-debuginfo - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.31.1
reiserfs-kmp-default - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.31.1
kernel-default-extra - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.31.1
kernel-kvmsmall-debugsource - update to 6.4.0-150600.23.87.1
kernel-kvmsmall-debuginfo - update to 6.4.0-150600.23.87.1
kernel-kvmsmall-devel-debuginfo - update to 6.4.0-150600.23.87.1
kernel-kvmsmall-devel - update to 6.4.0-150600.23.87.1
kernel-debug-vdso - update to 6.4.0-150600.23.87.1
kernel-debug-vdso-debuginfo - update to 6.4.0-150600.23.87.1
kernel-kvmsmall-vdso-debuginfo - update to 6.4.0-150600.23.87.1
kernel-default-vdso - update to 6.4.0-150600.23.87.1
kernel-default-vdso-debuginfo - update to 6.4.0-150600.23.87.1
kernel-debug-debugsource - update to 6.4.0-150600.23.87.1
kernel-debug-devel - update to 6.4.0-150600.23.87.1
kernel-debug-devel-debuginfo - update to 6.4.0-150600.23.87.1
kernel-kvmsmall-vdso - update to 6.4.0-150600.23.87.1
kernel-debug-debuginfo - update to 6.4.0-150600.23.87.1
kernel-devel - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.31.1
kernel-default-base - addressed in versions 6.4.0-150600.23.87.1.150600.12.40.1, 6.4.0-150700.53.31.1.150700.17.21.1
kernel-default-base-rebuild - update to 6.4.0-150600.23.87.1.150600.12.40.1
kernel-source-rt - update to 6.4.0-150700.7.31.1
kernel-devel-rt - update to 6.4.0-150700.7.31.1
kernel-syms-rt - update to 6.4.0-150700.7.31.1
cluster-md-kmp-rt-debuginfo - update to 6.4.0-150700.7.31.2
ocfs2-kmp-rt - update to 6.4.0-150700.7.31.2
gfs2-kmp-rt-debuginfo - update to 6.4.0-150700.7.31.2
kernel-rt-debuginfo - update to 6.4.0-150700.7.31.2
ocfs2-kmp-rt-debuginfo - update to 6.4.0-150700.7.31.2
dlm-kmp-rt-debuginfo - update to 6.4.0-150700.7.31.2
gfs2-kmp-rt - update to 6.4.0-150700.7.31.2
kernel-rt-devel - update to 6.4.0-150700.7.31.2
cluster-md-kmp-rt - update to 6.4.0-150700.7.31.2
kernel-rt-devel-debuginfo - update to 6.4.0-150700.7.31.2
dlm-kmp-rt - update to 6.4.0-150700.7.31.2
kernel-rt-debugsource - update to 6.4.0-150700.7.31.2
kernel-rt - update to 6.4.0-150700.7.31.2
kernel-devel-azure - update to 6.4.0-150700.20.27.1
kernel-source-azure - update to 6.4.0-150700.20.27.1
kernel-azure-devel-debuginfo - update to 6.4.0-150700.20.27.1
kernel-azure-debugsource - update to 6.4.0-150700.20.27.1
kernel-syms-azure - update to 6.4.0-150700.20.27.1
kernel-azure-devel - update to 6.4.0-150700.20.27.1
kernel-azure-debuginfo - update to 6.4.0-150700.20.27.1
kernel-azure - update to 6.4.0-150700.20.27.1

• https://git.kernel.org/stable/c/2dcf838cf5c2f0f4501edaa1680fcad03618d760
• https://git.kernel.org/stable/c/401d098f92ea69d8a75f8b845daf343e511681ba
• https://git.kernel.org/stable/c/ba8386d662cc51cc5382688bbf7a152b0b0b27cf

• NULL pointer dereference in Linux kernel btrfs
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel