Memory leak in Linux kernel - CVE-2022-48896

Vulnerability identifier: #VU96321

CSH Severity: Low

CVSS v4.0: 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/E:U/U:Clear

CVE-ID: CVE-2022-48896

CWE-ID: CWE-401

Exploitation vector: Local access

Exploit availability: No public exploit available

Affected software:
Linux kernel
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise High Availability Extension 15
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Software Development Kit 12
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise Workstation Extension 15
SUSE Linux Enterprise High Availability Extension 12
SUSE Linux Enterprise Real Time 12
SUSE Manager Server
SUSE Manager Proxy
SUSE Manager Retail Branch Server
SUSE Linux Enterprise Micro
SUSE Linux Enterprise Micro for Rancher
openSUSE Leap Micro
SUSE Linux Enterprise Live Patching
SUSE Linux Enterprise Workstation Extension 12
SUSE Linux Enterprise Server 15 SP4 LTSS
SUSE Linux Enterprise Desktop 15 SP4 LTSS
SUSE Real Time Module
Basesystem Module
Public Cloud Module
Legacy Module
Development Tools Module
openSUSE Leap
openEuler
RecoverPoint for Virtual Machines
kgraft-patch-4_12_14-122_228-default
kernel-livepatch-5_14_21-150400_24_133-default-debuginfo
kernel-livepatch-SLE15-SP4_Update_31-debugsource
kernel-livepatch-5_14_21-150400_24_133-default
kernel-livepatch-SLE15-SP5-RT_Update_19-debugsource
kernel-livepatch-5_14_21-150500_55_80-default
kernel-livepatch-SLE15-SP5_Update_19-debugsource
kernel-livepatch-5_14_21-150500_55_80-default-debuginfo
kernel-livepatch-5_14_21-150500_13_67-rt-debuginfo
kernel-livepatch-5_14_21-150500_13_67-rt
kernel-rt_debug
kernel-rt
kernel-source-rt
kernel-devel-rt
dlm-kmp-rt-debuginfo
kernel-rt-devel-debuginfo
kernel-rt_debug-devel
ocfs2-kmp-rt-debuginfo
ocfs2-kmp-rt
kernel-rt_debug-debugsource
kernel-rt-base-debuginfo
kernel-rt-devel
cluster-md-kmp-rt
kernel-rt_debug-debuginfo
cluster-md-kmp-rt-debuginfo
kernel-rt-debugsource
gfs2-kmp-rt
kernel-rt_debug-devel-debuginfo
kernel-syms-rt
kernel-rt-base
gfs2-kmp-rt-debuginfo
kernel-rt-debuginfo
dlm-kmp-rt
kernel-azure-devel
kernel-azure-debuginfo
kernel-azure-debugsource
kernel-syms-azure
kernel-azure-base-debuginfo
kernel-devel-azure
kernel-azure-base
kernel-azure
kernel-source-azure
kernel-macros
kernel-default-debugsource
kernel-syms
kernel-default-base
kernel-default-debuginfo
ocfs2-kmp-default
gfs2-kmp-default-debuginfo
cluster-md-kmp-default-debuginfo
kernel-default-devel
dlm-kmp-default
cluster-md-kmp-default
ocfs2-kmp-default-debuginfo
kernel-default-base-debuginfo
dlm-kmp-default-debuginfo
gfs2-kmp-default
kernel-default-extra-debuginfo
kernel-default-extra
kernel-default-man
kernel-default
kernel-default-kgraft
kernel-default-kgraft-devel
kernel-default-devel-debuginfo
kernel-source
kernel-devel
kernel-obs-build
kernel-obs-build-debugsource
kernel-docs
kernel-debuginfo
kernel-tools-devel
python3-perf-debuginfo
python3-perf
perf-debuginfo
perf
kernel-tools-debuginfo
kernel-tools
kernel-headers
kernel
kernel-debugsource
dtb-broadcom
dtb-apm
dtb-amazon
dtb-apple
dtb-rockchip
dtb-arm
dtb-lg
kernel-docs-html
dtb-aarch64
dtb-amd
dtb-freescale
dtb-renesas
dtb-nvidia
dtb-xilinx
dtb-allwinner
dtb-altera
kernel-obs-qa
dtb-exynos
dtb-marvell
dtb-socionext
dtb-cavium
dtb-sprd
dtb-amlogic
dtb-mediatek
dtb-hisilicon
dtb-qcom
kernel-kvmsmall-debuginfo
reiserfs-kmp-default
kselftests-kmp-default-debuginfo
reiserfs-kmp-default-debuginfo
kselftests-kmp-default
kernel-default-optional
kernel-kvmsmall-devel-debuginfo
kernel-kvmsmall-debugsource
kernel-kvmsmall-devel
kernel-kvmsmall-livepatch-devel
kernel-debug-livepatch-devel
kernel-debug-debuginfo
kernel-debug-debugsource
kernel-debug-devel-debuginfo
kernel-debug
kernel-default-livepatch-devel
kernel-default-livepatch
kernel-debug-devel
kernel-default-optional-debuginfo
gfs2-kmp-64kb
cluster-md-kmp-64kb
cluster-md-kmp-64kb-debuginfo
kernel-64kb-devel
ocfs2-kmp-64kb
kernel-64kb-optional-debuginfo
reiserfs-kmp-64kb
kernel-64kb-debuginfo
kernel-64kb-extra-debuginfo
dlm-kmp-64kb-debuginfo
reiserfs-kmp-64kb-debuginfo
dlm-kmp-64kb
ocfs2-kmp-64kb-debuginfo
kernel-64kb-debugsource
kernel-64kb-extra
kernel-64kb-livepatch-devel
kselftests-kmp-64kb-debuginfo
kernel-64kb
kernel-64kb-optional
gfs2-kmp-64kb-debuginfo
kernel-64kb-devel-debuginfo
kernel-zfcpdump-debugsource
kernel-zfcpdump-debuginfo
kernel-zfcpdump
kselftests-kmp-64kb
kernel-kvmsmall
kernel-source-vanilla
kernel-default-base-rebuild
kernel-rt-optional-debuginfo
kernel-rt-optional
kernel-rt-extra
reiserfs-kmp-rt-debuginfo
kernel-rt-vdso-debuginfo
kernel-rt-livepatch
kernel-rt-extra-debuginfo
reiserfs-kmp-rt
kselftests-kmp-rt-debuginfo
kernel-rt-livepatch-devel
kselftests-kmp-rt
kernel-rt_debug-vdso
kernel-rt-vdso
kernel-rt_debug-livepatch-devel
kernel-rt_debug-vdso-debuginfo
kernel-azure-extra-debuginfo
kernel-azure-optional
kernel-azure-extra
kernel-azure-devel-debuginfo
cluster-md-kmp-azure-debuginfo
reiserfs-kmp-azure-debuginfo
reiserfs-kmp-azure
dlm-kmp-azure
kselftests-kmp-azure
kernel-azure-vdso-debuginfo
kernel-azure-vdso
gfs2-kmp-azure
ocfs2-kmp-azure-debuginfo
kernel-azure-optional-debuginfo
ocfs2-kmp-azure
kselftests-kmp-azure-debuginfo
dlm-kmp-azure-debuginfo
gfs2-kmp-azure-debuginfo
cluster-md-kmp-azure
kernel-azure-livepatch-devel
kernel-default-vdso-debuginfo
kernel-debug-vdso-debuginfo
kernel-default-vdso
kernel-debug-vdso
kernel-kvmsmall-vdso
kernel-kvmsmall-vdso-debuginfo

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

The vulnerability exists due to memory leak within the ixgbe_get_first_secondary_devfn() and ixgbe_x550em_a_has_mii() functions in drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c. A local user can perform a denial of service (DoS) attack.

Install update from vendor's website.

• https://git.kernel.org/stable/c/53cefa802f070d46c0c518f4865be2c749818a18
• https://git.kernel.org/stable/c/112df4cd2b09acd64bcd18f5ef83ba5d07b34bf0
• https://git.kernel.org/stable/c/4c93422a54cd6a349988f42e1c6bf082cf4ea9d8
• https://git.kernel.org/stable/c/c49996c6aa03590e4ef5add8772cb6068d99fd59
• https://git.kernel.org/stable/c/b93fb4405fcb5112c5739c5349afb52ec7f15c07
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.164
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.89
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.229
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.7
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2