Use-after-free in Linux kernel - CVE-2022-49755

Vulnerability identifier: #VU106177

CSH Severity: Low

CVSS v4 BT: 5.9 [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/E:U/U:Clear]

CVE-ID: CVE-2022-49755

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 __ffs_ep0_queue_wait() and functionfs_unbind() functions in drivers/usb/gadget/function/f_fs.c. A local user can escalate privileges on the system.

Linux kernel
SUSE Linux Enterprise Server 15 SP4
SUSE Linux Enterprise Server 15 SP5
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise High Availability Extension 15
SUSE Manager Server
SUSE Manager Retail Branch Server
SUSE Manager Proxy
SUSE Linux Enterprise Micro for Rancher
SUSE Linux Enterprise Micro
SUSE Linux Enterprise Live Patching
openSUSE Leap
openEuler
kernel-livepatch-SLE15-SP4_Update_39-debugsource
kernel-livepatch-5_14_21-150400_24_161-default
kernel-livepatch-5_14_21-150400_24_161-default-debuginfo
kernel-livepatch-5_14_21-150500_55_100-default-debuginfo
kernel-livepatch-5_14_21-150500_55_100-default
kernel-livepatch-SLE15-SP5_Update_25-debugsource
python3-perf-debuginfo
kernel
bpftool
bpftool-debuginfo
kernel-debuginfo
kernel-debugsource
kernel-source
python3-perf
python2-perf-debuginfo
kernel-devel
python2-perf
perf-debuginfo
kernel-tools-devel
kernel-tools-debuginfo
perf
kernel-tools
kernel-rt-debugsource
kernel-rt-debuginfo
kernel-rt
kernel-source-rt
kselftests-kmp-64kb-debuginfo
dtb-arm
kernel-64kb-devel-debuginfo
dtb-freescale
kernel-64kb-extra-debuginfo
dtb-altera
kernel-64kb-devel
kselftests-kmp-64kb
kernel-64kb-optional-debuginfo
dtb-amazon
cluster-md-kmp-64kb
kernel-64kb-debuginfo
reiserfs-kmp-64kb
kernel-64kb-debugsource
dtb-cavium
dtb-aarch64
kernel-zfcpdump-debugsource
kernel-zfcpdump-debuginfo
kernel-zfcpdump
kernel-kvmsmall
ocfs2-kmp-default
kernel-default-livepatch-devel
kernel-default
gfs2-kmp-default
ocfs2-kmp-64kb-debuginfo
dtb-broadcom
kernel-64kb
dtb-allwinner
dlm-kmp-64kb-debuginfo
gfs2-kmp-64kb
dtb-marvell
dtb-rockchip
dtb-amlogic
dtb-sprd
dtb-renesas
kernel-64kb-optional
ocfs2-kmp-64kb
dtb-exynos
dtb-nvidia
cluster-md-kmp-64kb-debuginfo
dtb-xilinx
reiserfs-kmp-64kb-debuginfo
dtb-socionext
dtb-lg
dtb-amd
dtb-hisilicon
dtb-qcom
dtb-apple
kernel-64kb-extra
dtb-apm
dtb-mediatek
gfs2-kmp-64kb-debuginfo
dlm-kmp-64kb
kernel-debug-debuginfo
reiserfs-kmp-default
kernel-default-debuginfo
kernel-default-extra-debuginfo
kernel-kvmsmall-devel-debuginfo
kernel-kvmsmall-debugsource
kernel-kvmsmall-devel
kernel-kvmsmall-debuginfo
kernel-debug-devel-debuginfo
kernel-debug-devel
dlm-kmp-default-debuginfo
kernel-debug-debugsource
kernel-debug
kernel-docs-html
kernel-source-vanilla
kernel-macros
kernel-docs
dlm-kmp-default
cluster-md-kmp-default
gfs2-kmp-default-debuginfo
kernel-default-optional-debuginfo
cluster-md-kmp-default-debuginfo
reiserfs-kmp-default-debuginfo
kernel-default-livepatch
kernel-default-extra
kernel-default-devel-debuginfo
kernel-obs-qa
kernel-obs-build
kselftests-kmp-default-debuginfo
kernel-syms
kselftests-kmp-default
kernel-default-debugsource
kernel-default-optional
kernel-default-devel
ocfs2-kmp-default-debuginfo
kernel-obs-build-debugsource
kernel-default-base
kernel-default-base-rebuild
kselftests-kmp-rt
cluster-md-kmp-rt
dlm-kmp-rt-debuginfo
ocfs2-kmp-rt
kernel-rt-extra-debuginfo
kselftests-kmp-rt-debuginfo
kernel-rt_debug-debuginfo
gfs2-kmp-rt-debuginfo
cluster-md-kmp-rt-debuginfo
kernel-rt-optional
kernel-rt_debug-vdso-debuginfo
kernel-rt-livepatch-devel
kernel-rt_debug-vdso
kernel-rt-devel-debuginfo
ocfs2-kmp-rt-debuginfo
kernel-rt_debug-debugsource
kernel-rt-optional-debuginfo
kernel-syms-rt
reiserfs-kmp-rt
kernel-rt-devel
kernel-rt_debug-devel
dlm-kmp-rt
kernel-rt_debug-devel-debuginfo
reiserfs-kmp-rt-debuginfo
kernel-rt-vdso-debuginfo
kernel-rt-extra
gfs2-kmp-rt
kernel-rt-livepatch
kernel-rt-vdso
kernel-rt_debug
kernel-devel-rt
kernel-default-vdso
kernel-kvmsmall-vdso-debuginfo
kernel-kvmsmall-vdso
kernel-default-vdso-debuginfo
kernel-debug-vdso-debuginfo
kernel-debug-vdso

Install update from vendor's website.

Linux kernel - update to 4.14.305
kernel-livepatch-SLE15-SP4_Update_39-debugsource - update to 1-150400.9.3.1
kernel-livepatch-5_14_21-150400_24_161-default - update to 1-150400.9.3.1
kernel-livepatch-5_14_21-150400_24_161-default-debuginfo - update to 1-150400.9.3.1
kernel-livepatch-5_14_21-150500_55_100-default-debuginfo - update to 1-150500.11.3.1
kernel-livepatch-5_14_21-150500_55_100-default - update to 1-150500.11.3.1
kernel-livepatch-SLE15-SP5_Update_25-debugsource - update to 1-150500.11.3.1
python3-perf-debuginfo - update to 4.19.90-2505.3.0.0327
kernel - update to 4.19.90-2505.3.0.0327
bpftool - update to 4.19.90-2505.3.0.0327
bpftool-debuginfo - update to 4.19.90-2505.3.0.0327
kernel-debuginfo - update to 4.19.90-2505.3.0.0327
kernel-debugsource - update to 4.19.90-2505.3.0.0327
kernel-source - update to 4.19.90-2505.3.0.0327
python3-perf - update to 4.19.90-2505.3.0.0327
python2-perf-debuginfo - update to 4.19.90-2505.3.0.0327
kernel-devel - update to 4.19.90-2505.3.0.0327
python2-perf - update to 4.19.90-2505.3.0.0327
perf-debuginfo - update to 4.19.90-2505.3.0.0327
kernel-tools-devel - update to 4.19.90-2505.3.0.0327
kernel-tools-debuginfo - update to 4.19.90-2505.3.0.0327
perf - update to 4.19.90-2505.3.0.0327
kernel-tools - update to 4.19.90-2505.3.0.0327
kernel-rt-debugsource - addressed in versions 5.14.21-150400.15.115.1, 5.14.21-150500.13.91.1
kernel-rt-debuginfo - addressed in versions 5.14.21-150400.15.115.1, 5.14.21-150500.13.91.1
kernel-rt - addressed in versions 5.14.21-150400.15.115.1, 5.14.21-150500.13.91.1
kernel-source-rt - addressed in versions 5.14.21-150400.15.115.1, 5.14.21-150500.13.91.1
kselftests-kmp-64kb-debuginfo - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
dtb-arm - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kernel-64kb-devel-debuginfo - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
dtb-freescale - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kernel-64kb-extra-debuginfo - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
dtb-altera - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kernel-64kb-devel - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kselftests-kmp-64kb - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kernel-64kb-optional-debuginfo - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
dtb-amazon - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
cluster-md-kmp-64kb - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kernel-64kb-debuginfo - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
reiserfs-kmp-64kb - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kernel-64kb-debugsource - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
dtb-cavium - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
dtb-aarch64 - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kernel-zfcpdump-debugsource - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kernel-zfcpdump-debuginfo - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kernel-zfcpdump - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kernel-kvmsmall - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
ocfs2-kmp-default - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kernel-default-livepatch-devel - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kernel-default - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
gfs2-kmp-default - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
ocfs2-kmp-64kb-debuginfo - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
dtb-broadcom - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kernel-64kb - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
dtb-allwinner - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
dlm-kmp-64kb-debuginfo - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
gfs2-kmp-64kb - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
dtb-marvell - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
dtb-rockchip - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
dtb-amlogic - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
dtb-sprd - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
dtb-renesas - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kernel-64kb-optional - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
ocfs2-kmp-64kb - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
dtb-exynos - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
dtb-nvidia - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
cluster-md-kmp-64kb-debuginfo - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
dtb-xilinx - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
reiserfs-kmp-64kb-debuginfo - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
dtb-socionext - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
dtb-lg - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
dtb-amd - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
dtb-hisilicon - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
dtb-qcom - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
dtb-apple - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kernel-64kb-extra - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
dtb-apm - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
dtb-mediatek - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
gfs2-kmp-64kb-debuginfo - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
dlm-kmp-64kb - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kernel-debug-debuginfo - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
reiserfs-kmp-default - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kernel-default-debuginfo - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kernel-default-extra-debuginfo - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kernel-kvmsmall-devel-debuginfo - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kernel-kvmsmall-debugsource - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kernel-kvmsmall-devel - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kernel-kvmsmall-debuginfo - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kernel-debug-devel-debuginfo - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kernel-debug-devel - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
dlm-kmp-default-debuginfo - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kernel-debug-debugsource - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kernel-debug - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kernel-docs-html - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kernel-source-vanilla - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kernel-source - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kernel-devel - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kernel-macros - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kernel-docs - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
dlm-kmp-default - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
cluster-md-kmp-default - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
gfs2-kmp-default-debuginfo - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kernel-default-optional-debuginfo - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
cluster-md-kmp-default-debuginfo - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
reiserfs-kmp-default-debuginfo - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kernel-default-livepatch - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kernel-default-extra - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kernel-default-devel-debuginfo - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kernel-obs-qa - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kernel-obs-build - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kselftests-kmp-default-debuginfo - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kernel-syms - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kselftests-kmp-default - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kernel-default-debugsource - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kernel-default-optional - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kernel-default-devel - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
ocfs2-kmp-default-debuginfo - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kernel-obs-build-debugsource - addressed in versions 5.14.21-150400.24.161.1, 5.14.21-150500.55.100.1
kernel-default-base - addressed in versions 5.14.21-150400.24.161.1.150400.24.80.1, 5.14.21-150500.55.100.1.150500.6.47.1
kernel-default-base-rebuild - addressed in versions 5.14.21-150400.24.161.1.150400.24.80.1, 5.14.21-150500.55.100.1.150500.6.47.1
kselftests-kmp-rt - update to 5.14.21-150500.13.91.1
cluster-md-kmp-rt - update to 5.14.21-150500.13.91.1
dlm-kmp-rt-debuginfo - update to 5.14.21-150500.13.91.1
ocfs2-kmp-rt - update to 5.14.21-150500.13.91.1
kernel-rt-extra-debuginfo - update to 5.14.21-150500.13.91.1
kselftests-kmp-rt-debuginfo - update to 5.14.21-150500.13.91.1
kernel-rt_debug-debuginfo - update to 5.14.21-150500.13.91.1
gfs2-kmp-rt-debuginfo - update to 5.14.21-150500.13.91.1
cluster-md-kmp-rt-debuginfo - update to 5.14.21-150500.13.91.1
kernel-rt-optional - update to 5.14.21-150500.13.91.1
kernel-rt_debug-vdso-debuginfo - update to 5.14.21-150500.13.91.1
kernel-rt-livepatch-devel - update to 5.14.21-150500.13.91.1
kernel-rt_debug-vdso - update to 5.14.21-150500.13.91.1
kernel-rt-devel-debuginfo - update to 5.14.21-150500.13.91.1
ocfs2-kmp-rt-debuginfo - update to 5.14.21-150500.13.91.1
kernel-rt_debug-debugsource - update to 5.14.21-150500.13.91.1
kernel-rt-optional-debuginfo - update to 5.14.21-150500.13.91.1
kernel-syms-rt - update to 5.14.21-150500.13.91.1
reiserfs-kmp-rt - update to 5.14.21-150500.13.91.1
kernel-rt-devel - update to 5.14.21-150500.13.91.1
kernel-rt_debug-devel - update to 5.14.21-150500.13.91.1
dlm-kmp-rt - update to 5.14.21-150500.13.91.1
kernel-rt_debug-devel-debuginfo - update to 5.14.21-150500.13.91.1
reiserfs-kmp-rt-debuginfo - update to 5.14.21-150500.13.91.1
kernel-rt-vdso-debuginfo - update to 5.14.21-150500.13.91.1
kernel-rt-extra - update to 5.14.21-150500.13.91.1
gfs2-kmp-rt - update to 5.14.21-150500.13.91.1
kernel-rt-livepatch - update to 5.14.21-150500.13.91.1
kernel-rt-vdso - update to 5.14.21-150500.13.91.1
kernel-rt_debug - update to 5.14.21-150500.13.91.1
kernel-devel-rt - update to 5.14.21-150500.13.91.1
kernel-default-vdso - update to 5.14.21-150500.55.100.1
kernel-kvmsmall-vdso-debuginfo - update to 5.14.21-150500.55.100.1
kernel-kvmsmall-vdso - update to 5.14.21-150500.55.100.1
kernel-default-vdso-debuginfo - update to 5.14.21-150500.55.100.1
kernel-debug-vdso-debuginfo - update to 5.14.21-150500.55.100.1
kernel-debug-vdso - update to 5.14.21-150500.55.100.1

• https://git.kernel.org/stable/c/6a19da111057f69214b97c62fb0ac59023970850
• https://git.kernel.org/stable/c/6aee197b7fbcd61596a78b47d553f2f99111f217
• https://git.kernel.org/stable/c/6dd9ea05534f323668db94fcc2726c7a84547e78
• https://git.kernel.org/stable/c/a8d40942df074f4ebcb9bd3413596d92f323b064
• https://git.kernel.org/stable/c/ae8e136bcaae96163b5821984de1036efc9abb1a
• https://git.kernel.org/stable/c/e9036e951f93fb8d7b5e9d6e2c7f94a4da312ae4
• https://git.kernel.org/stable/c/facf353c9e8d7885b686d9a4b173d4e0af6441d2
• https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.305

• Use-after-free in Linux kernel gadget function driver
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• openEuler 20.03 LTS SP4 update for kernel