Use-after-free in Linux kernel - CVE-2022-49470

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Main Vulnerability Database Vulnerabilities #VU104418

Use-after-free in Linux kernel - CVE-2022-49470

Published: February 26, 2025 / Updated: May 11, 2025


Vulnerability identifier: #VU104418
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-2022-49470
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the btmtksdio_recv_event() function in drivers/bluetooth/btmtksdio.c. A local user can escalate privileges on the system.


Affected software

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

How to mitigate CVE-2022-49470

Install update from vendor's website.

Linux kernel - update to 5.15.54
kernel-livepatch-SLE15-SP5_Update_25-debugsource - 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-5_14_21-150500_55_100-default-debuginfo - update to 1-150500.11.3.1
python3-perf-debuginfo - addressed in versions 5.10.0-293.0.0.195, 5.10.0-293.0.0.196
kernel - addressed in versions 5.10.0-293.0.0.195, 5.10.0-293.0.0.196
kernel-debuginfo - addressed in versions 5.10.0-293.0.0.195, 5.10.0-293.0.0.196
kernel-debugsource - addressed in versions 5.10.0-293.0.0.195, 5.10.0-293.0.0.196
kernel-devel - addressed in versions 5.10.0-293.0.0.195, 5.10.0-293.0.0.196
kernel-headers - addressed in versions 5.10.0-293.0.0.195, 5.10.0-293.0.0.196
kernel-source - addressed in versions 5.10.0-293.0.0.195, 5.10.0-293.0.0.196
kernel-tools - addressed in versions 5.10.0-293.0.0.195, 5.10.0-293.0.0.196
kernel-tools-debuginfo - addressed in versions 5.10.0-293.0.0.195, 5.10.0-293.0.0.196
kernel-tools-devel - addressed in versions 5.10.0-293.0.0.195, 5.10.0-293.0.0.196
perf - addressed in versions 5.10.0-293.0.0.195, 5.10.0-293.0.0.196
perf-debuginfo - addressed in versions 5.10.0-293.0.0.195, 5.10.0-293.0.0.196
python3-perf - addressed in versions 5.10.0-293.0.0.195, 5.10.0-293.0.0.196
bpftool - update to 5.10.0-293.0.0.196
bpftool-debuginfo - update to 5.10.0-293.0.0.196
kernel-source-rt - update to 5.14.21-150500.13.91.1
kernel-rt - update to 5.14.21-150500.13.91.1
ocfs2-kmp-rt - update to 5.14.21-150500.13.91.1
kernel-rt-livepatch - update to 5.14.21-150500.13.91.1
gfs2-kmp-rt - update to 5.14.21-150500.13.91.1
kernel-rt-extra - update to 5.14.21-150500.13.91.1
kernel-rt-vdso-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_debug-devel-debuginfo - 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 - update to 5.14.21-150500.13.91.1
kernel-rt-devel - update to 5.14.21-150500.13.91.1
reiserfs-kmp-rt - update to 5.14.21-150500.13.91.1
kernel-syms-rt - update to 5.14.21-150500.13.91.1
kernel-rt-debugsource - update to 5.14.21-150500.13.91.1
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
kernel-rt-vdso - 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-debuginfo - 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-devel-rt - update to 5.14.21-150500.13.91.1
kernel-rt_debug - update to 5.14.21-150500.13.91.1
cluster-md-kmp-default-debuginfo - update to 5.14.21-150500.55.100.1
kselftests-kmp-default-debuginfo - update to 5.14.21-150500.55.100.1
kernel-64kb - update to 5.14.21-150500.55.100.1
dtb-exynos - update to 5.14.21-150500.55.100.1
dtb-socionext - update to 5.14.21-150500.55.100.1
kernel-64kb-devel-debuginfo - update to 5.14.21-150500.55.100.1
ocfs2-kmp-64kb - update to 5.14.21-150500.55.100.1
dlm-kmp-64kb-debuginfo - update to 5.14.21-150500.55.100.1
dtb-mediatek - update to 5.14.21-150500.55.100.1
dtb-xilinx - update to 5.14.21-150500.55.100.1
kselftests-kmp-64kb - update to 5.14.21-150500.55.100.1
dtb-altera - update to 5.14.21-150500.55.100.1
gfs2-kmp-64kb-debuginfo - update to 5.14.21-150500.55.100.1
dtb-hisilicon - update to 5.14.21-150500.55.100.1
dtb-marvell - update to 5.14.21-150500.55.100.1
dtb-allwinner - update to 5.14.21-150500.55.100.1
cluster-md-kmp-64kb-debuginfo - update to 5.14.21-150500.55.100.1
dtb-sprd - update to 5.14.21-150500.55.100.1
reiserfs-kmp-64kb - update to 5.14.21-150500.55.100.1
dtb-nvidia - update to 5.14.21-150500.55.100.1
kselftests-kmp-64kb-debuginfo - update to 5.14.21-150500.55.100.1
dtb-broadcom - update to 5.14.21-150500.55.100.1
gfs2-kmp-64kb - update to 5.14.21-150500.55.100.1
dtb-cavium - update to 5.14.21-150500.55.100.1
kernel-debug-vdso - update to 5.14.21-150500.55.100.1
kernel-docs - update to 5.14.21-150500.55.100.1
kernel-macros - update to 5.14.21-150500.55.100.1
kernel-source - update to 5.14.21-150500.55.100.1
kernel-devel - update to 5.14.21-150500.55.100.1
kernel-docs-html - update to 5.14.21-150500.55.100.1
kernel-source-vanilla - update to 5.14.21-150500.55.100.1
kernel-debug - update to 5.14.21-150500.55.100.1
kernel-debug-debugsource - update to 5.14.21-150500.55.100.1
kernel-debug-devel-debuginfo - update to 5.14.21-150500.55.100.1
kernel-debug-devel - update to 5.14.21-150500.55.100.1
kernel-debug-debuginfo - update to 5.14.21-150500.55.100.1
kernel-default-extra-debuginfo - update to 5.14.21-150500.55.100.1
kernel-debug-vdso-debuginfo - update to 5.14.21-150500.55.100.1
kernel-default-vdso-debuginfo - update to 5.14.21-150500.55.100.1
kernel-kvmsmall-vdso - update to 5.14.21-150500.55.100.1
kernel-kvmsmall-vdso-debuginfo - update to 5.14.21-150500.55.100.1
kernel-default-vdso - update to 5.14.21-150500.55.100.1
kernel-kvmsmall-debugsource - update to 5.14.21-150500.55.100.1
kernel-kvmsmall-devel - update to 5.14.21-150500.55.100.1
kernel-kvmsmall-devel-debuginfo - update to 5.14.21-150500.55.100.1
kernel-kvmsmall-debuginfo - update to 5.14.21-150500.55.100.1
kernel-default-devel - update to 5.14.21-150500.55.100.1
reiserfs-kmp-default - update to 5.14.21-150500.55.100.1
kernel-default-debugsource - update to 5.14.21-150500.55.100.1
kernel-64kb-extra - update to 5.14.21-150500.55.100.1
kernel-kvmsmall - update to 5.14.21-150500.55.100.1
cluster-md-kmp-default - update to 5.14.21-150500.55.100.1
kernel-obs-qa - update to 5.14.21-150500.55.100.1
kernel-default-livepatch-devel - update to 5.14.21-150500.55.100.1
kernel-default-extra - update to 5.14.21-150500.55.100.1
kernel-default - update to 5.14.21-150500.55.100.1
ocfs2-kmp-default - update to 5.14.21-150500.55.100.1
kernel-default-livepatch - update to 5.14.21-150500.55.100.1
kernel-obs-build-debugsource - update to 5.14.21-150500.55.100.1
kselftests-kmp-default - update to 5.14.21-150500.55.100.1
kernel-default-optional-debuginfo - update to 5.14.21-150500.55.100.1
kernel-zfcpdump - update to 5.14.21-150500.55.100.1
kernel-obs-build - update to 5.14.21-150500.55.100.1
kernel-default-devel-debuginfo - update to 5.14.21-150500.55.100.1
gfs2-kmp-default - update to 5.14.21-150500.55.100.1
kernel-default-debuginfo - update to 5.14.21-150500.55.100.1
dlm-kmp-default - update to 5.14.21-150500.55.100.1
gfs2-kmp-default-debuginfo - update to 5.14.21-150500.55.100.1
kernel-syms - update to 5.14.21-150500.55.100.1
ocfs2-kmp-default-debuginfo - update to 5.14.21-150500.55.100.1
dlm-kmp-default-debuginfo - update to 5.14.21-150500.55.100.1
reiserfs-kmp-default-debuginfo - update to 5.14.21-150500.55.100.1
kernel-default-optional - update to 5.14.21-150500.55.100.1
ocfs2-kmp-64kb-debuginfo - update to 5.14.21-150500.55.100.1
dtb-apple - update to 5.14.21-150500.55.100.1
dtb-amlogic - update to 5.14.21-150500.55.100.1
kernel-64kb-devel - update to 5.14.21-150500.55.100.1
dtb-arm - update to 5.14.21-150500.55.100.1
kernel-64kb-debugsource - update to 5.14.21-150500.55.100.1
dtb-rockchip - update to 5.14.21-150500.55.100.1
dtb-amd - update to 5.14.21-150500.55.100.1
dtb-amazon - update to 5.14.21-150500.55.100.1
cluster-md-kmp-64kb - update to 5.14.21-150500.55.100.1
dtb-qcom - update to 5.14.21-150500.55.100.1
dtb-freescale - update to 5.14.21-150500.55.100.1
dtb-renesas - update to 5.14.21-150500.55.100.1
kernel-zfcpdump-debugsource - update to 5.14.21-150500.55.100.1
dtb-apm - update to 5.14.21-150500.55.100.1
kernel-64kb-optional - update to 5.14.21-150500.55.100.1
kernel-64kb-optional-debuginfo - update to 5.14.21-150500.55.100.1
kernel-64kb-extra-debuginfo - update to 5.14.21-150500.55.100.1
dtb-lg - update to 5.14.21-150500.55.100.1
dlm-kmp-64kb - update to 5.14.21-150500.55.100.1
reiserfs-kmp-64kb-debuginfo - update to 5.14.21-150500.55.100.1
kernel-64kb-debuginfo - update to 5.14.21-150500.55.100.1
dtb-aarch64 - update to 5.14.21-150500.55.100.1
kernel-zfcpdump-debuginfo - update to 5.14.21-150500.55.100.1
kernel-default-base-rebuild - update to 5.14.21-150500.55.100.1.150500.6.47.1
kernel-default-base - update to 5.14.21-150500.55.100.1.150500.6.47.1

External References

Related Security Bulletins