Race condition in Linux kernel - CVE-2022-50447

Vulnerability identifier: #VU116267

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-2022-50447

CWE-ID: CWE-362

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 a race condition within the hci_create_cis_sync() function in net/bluetooth/hci_conn.c. A local user can perform a denial of service (DoS) attack.

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
kernel-livepatch-5_14_21-150500_55_124-default
kernel-livepatch-5_14_21-150500_55_124-default-debuginfo
kernel-livepatch-SLE15-SP5_Update_31-debugsource
kernel-rt (Red Hat package)
kernel-rt-extra
kselftests-kmp-rt
kernel-rt-vdso
kernel-rt_debug-devel
ocfs2-kmp-rt
kernel-rt_debug-debugsource
kernel-rt-livepatch
kernel-syms-rt
kernel-rt-debugsource
kernel-rt_debug-devel-debuginfo
dlm-kmp-rt
kernel-rt_debug-vdso-debuginfo
reiserfs-kmp-rt
kernel-rt-extra-debuginfo
kernel-source-rt
kernel-devel-rt
gfs2-kmp-rt-debuginfo
kernel-rt_debug
kernel-rt
kernel-rt-debuginfo
kernel-rt_debug-vdso
kernel-rt-devel-debuginfo
kernel-rt-optional-debuginfo
kselftests-kmp-rt-debuginfo
cluster-md-kmp-rt-debuginfo
ocfs2-kmp-rt-debuginfo
dlm-kmp-rt-debuginfo
kernel-rt-vdso-debuginfo
cluster-md-kmp-rt
kernel-rt-devel
kernel-rt-livepatch-devel
kernel-rt_debug-debuginfo
reiserfs-kmp-rt-debuginfo
kernel-rt-optional
gfs2-kmp-rt
dtb-apm
kselftests-kmp-64kb-debuginfo
dlm-kmp-64kb
cluster-md-kmp-64kb
dtb-socionext
dtb-nvidia
reiserfs-kmp-64kb-debuginfo
dtb-lg
kernel-64kb-extra
dtb-rockchip
kernel-64kb-extra-debuginfo
dtb-marvell
reiserfs-kmp-64kb
dtb-apple
ocfs2-kmp-64kb
dtb-qcom
dtb-xilinx
dtb-amd
dlm-kmp-64kb-debuginfo
dtb-allwinner
kernel-64kb-devel-debuginfo
dtb-amazon
dtb-broadcom
kernel-64kb-debuginfo
dtb-exynos
ocfs2-kmp-64kb-debuginfo
kernel-64kb
kernel-64kb-devel
kernel-obs-build-debugsource
dtb-hisilicon
kselftests-kmp-default
reiserfs-kmp-default-debuginfo
kernel-default-extra-debuginfo
kselftests-kmp-default-debuginfo
reiserfs-kmp-default
dlm-kmp-default-debuginfo
kernel-default-devel
kernel-obs-build
kernel-default-optional
kernel-default-devel-debuginfo
gfs2-kmp-default
kernel-obs-qa
gfs2-kmp-default-debuginfo
cluster-md-kmp-default
cluster-md-kmp-default-debuginfo
kernel-default-debuginfo
ocfs2-kmp-default
kernel-default-debugsource
kernel-default-optional-debuginfo
kernel-default-extra
kernel-kvmsmall-devel
kernel-kvmsmall-debuginfo
kernel-kvmsmall-debugsource
kernel-kvmsmall-devel-debuginfo
kernel-source
kernel-docs-html
kernel-macros
kernel-devel
kernel-source-vanilla
dtb-altera
gfs2-kmp-64kb
kernel-docs
dtb-sprd
dtb-mediatek
dtb-arm
dtb-renesas
dtb-freescale
kernel-64kb-optional-debuginfo
kernel-64kb-debugsource
kernel-64kb-optional
kselftests-kmp-64kb
gfs2-kmp-64kb-debuginfo
cluster-md-kmp-64kb-debuginfo
dtb-cavium
dlm-kmp-default
dtb-aarch64
kernel-syms
kernel-default-livepatch
ocfs2-kmp-default-debuginfo
kernel-default
kernel-default-livepatch-devel
kernel-kvmsmall-vdso
kernel-kvmsmall-vdso-debuginfo
kernel-default-vdso-debuginfo
kernel-default-vdso
kernel-kvmsmall
kernel-zfcpdump
kernel-zfcpdump-debugsource
kernel-zfcpdump-debuginfo
dtb-amlogic
kernel-default-base
kernel-default-base-rebuild

Install update from vendor's repository.

Linux kernel - update to 6.0.16
kernel-livepatch-5_14_21-150500_55_124-default - update to 1-150500.11.3.1
kernel-livepatch-5_14_21-150500_55_124-default-debuginfo - update to 1-150500.11.3.1
kernel-livepatch-SLE15-SP5_Update_31-debugsource - update to 1-150500.11.3.1
kernel-rt (Red Hat package) - update to 5.14.0-284.152.1.rt14.437.el9_2
kernel-rt-extra - update to 5.14.21-150500.13.109.1
kselftests-kmp-rt - update to 5.14.21-150500.13.109.1
kernel-rt-vdso - update to 5.14.21-150500.13.109.1
kernel-rt_debug-devel - update to 5.14.21-150500.13.109.1
ocfs2-kmp-rt - update to 5.14.21-150500.13.109.1
kernel-rt_debug-debugsource - update to 5.14.21-150500.13.109.1
kernel-rt-livepatch - update to 5.14.21-150500.13.109.1
kernel-syms-rt - update to 5.14.21-150500.13.109.1
kernel-rt-debugsource - update to 5.14.21-150500.13.109.1
kernel-rt_debug-devel-debuginfo - update to 5.14.21-150500.13.109.1
dlm-kmp-rt - update to 5.14.21-150500.13.109.1
kernel-rt_debug-vdso-debuginfo - update to 5.14.21-150500.13.109.1
reiserfs-kmp-rt - update to 5.14.21-150500.13.109.1
kernel-rt-extra-debuginfo - update to 5.14.21-150500.13.109.1
kernel-source-rt - update to 5.14.21-150500.13.109.1
kernel-devel-rt - update to 5.14.21-150500.13.109.1
gfs2-kmp-rt-debuginfo - update to 5.14.21-150500.13.109.1
kernel-rt_debug - update to 5.14.21-150500.13.109.1
kernel-rt - update to 5.14.21-150500.13.109.1
kernel-rt-debuginfo - update to 5.14.21-150500.13.109.1
kernel-rt_debug-vdso - update to 5.14.21-150500.13.109.1
kernel-rt-devel-debuginfo - update to 5.14.21-150500.13.109.1
kernel-rt-optional-debuginfo - update to 5.14.21-150500.13.109.1
kselftests-kmp-rt-debuginfo - update to 5.14.21-150500.13.109.1
cluster-md-kmp-rt-debuginfo - update to 5.14.21-150500.13.109.1
ocfs2-kmp-rt-debuginfo - update to 5.14.21-150500.13.109.1
dlm-kmp-rt-debuginfo - update to 5.14.21-150500.13.109.1
kernel-rt-vdso-debuginfo - update to 5.14.21-150500.13.109.1
cluster-md-kmp-rt - update to 5.14.21-150500.13.109.1
kernel-rt-devel - update to 5.14.21-150500.13.109.1
kernel-rt-livepatch-devel - update to 5.14.21-150500.13.109.1
kernel-rt_debug-debuginfo - update to 5.14.21-150500.13.109.1
reiserfs-kmp-rt-debuginfo - update to 5.14.21-150500.13.109.1
kernel-rt-optional - update to 5.14.21-150500.13.109.1
gfs2-kmp-rt - update to 5.14.21-150500.13.109.1
dtb-apm - update to 5.14.21-150500.55.124.1
kselftests-kmp-64kb-debuginfo - update to 5.14.21-150500.55.124.1
dlm-kmp-64kb - update to 5.14.21-150500.55.124.1
cluster-md-kmp-64kb - update to 5.14.21-150500.55.124.1
dtb-socionext - update to 5.14.21-150500.55.124.1
dtb-nvidia - update to 5.14.21-150500.55.124.1
reiserfs-kmp-64kb-debuginfo - update to 5.14.21-150500.55.124.1
dtb-lg - update to 5.14.21-150500.55.124.1
kernel-64kb-extra - update to 5.14.21-150500.55.124.1
dtb-rockchip - update to 5.14.21-150500.55.124.1
kernel-64kb-extra-debuginfo - update to 5.14.21-150500.55.124.1
dtb-marvell - update to 5.14.21-150500.55.124.1
reiserfs-kmp-64kb - update to 5.14.21-150500.55.124.1
dtb-apple - update to 5.14.21-150500.55.124.1
ocfs2-kmp-64kb - update to 5.14.21-150500.55.124.1
dtb-qcom - update to 5.14.21-150500.55.124.1
dtb-xilinx - update to 5.14.21-150500.55.124.1
dtb-amd - update to 5.14.21-150500.55.124.1
dlm-kmp-64kb-debuginfo - update to 5.14.21-150500.55.124.1
dtb-allwinner - update to 5.14.21-150500.55.124.1
kernel-64kb-devel-debuginfo - update to 5.14.21-150500.55.124.1
dtb-amazon - update to 5.14.21-150500.55.124.1
dtb-broadcom - update to 5.14.21-150500.55.124.1
kernel-64kb-debuginfo - update to 5.14.21-150500.55.124.1
dtb-exynos - update to 5.14.21-150500.55.124.1
ocfs2-kmp-64kb-debuginfo - update to 5.14.21-150500.55.124.1
kernel-64kb - update to 5.14.21-150500.55.124.1
kernel-64kb-devel - update to 5.14.21-150500.55.124.1
kernel-obs-build-debugsource - update to 5.14.21-150500.55.124.1
dtb-hisilicon - update to 5.14.21-150500.55.124.1
kselftests-kmp-default - update to 5.14.21-150500.55.124.1
reiserfs-kmp-default-debuginfo - update to 5.14.21-150500.55.124.1
kernel-default-extra-debuginfo - update to 5.14.21-150500.55.124.1
kselftests-kmp-default-debuginfo - update to 5.14.21-150500.55.124.1
reiserfs-kmp-default - update to 5.14.21-150500.55.124.1
dlm-kmp-default-debuginfo - update to 5.14.21-150500.55.124.1
kernel-default-devel - update to 5.14.21-150500.55.124.1
kernel-obs-build - update to 5.14.21-150500.55.124.1
kernel-default-optional - update to 5.14.21-150500.55.124.1
kernel-default-devel-debuginfo - update to 5.14.21-150500.55.124.1
gfs2-kmp-default - update to 5.14.21-150500.55.124.1
kernel-obs-qa - update to 5.14.21-150500.55.124.1
gfs2-kmp-default-debuginfo - update to 5.14.21-150500.55.124.1
cluster-md-kmp-default - update to 5.14.21-150500.55.124.1
cluster-md-kmp-default-debuginfo - update to 5.14.21-150500.55.124.1
kernel-default-debuginfo - update to 5.14.21-150500.55.124.1
ocfs2-kmp-default - update to 5.14.21-150500.55.124.1
kernel-default-debugsource - update to 5.14.21-150500.55.124.1
kernel-default-optional-debuginfo - update to 5.14.21-150500.55.124.1
kernel-default-extra - update to 5.14.21-150500.55.124.1
kernel-kvmsmall-devel - update to 5.14.21-150500.55.124.1
kernel-kvmsmall-debuginfo - update to 5.14.21-150500.55.124.1
kernel-kvmsmall-debugsource - update to 5.14.21-150500.55.124.1
kernel-kvmsmall-devel-debuginfo - update to 5.14.21-150500.55.124.1
kernel-source - update to 5.14.21-150500.55.124.1
kernel-docs-html - update to 5.14.21-150500.55.124.1
kernel-macros - update to 5.14.21-150500.55.124.1
kernel-devel - update to 5.14.21-150500.55.124.1
kernel-source-vanilla - update to 5.14.21-150500.55.124.1
dtb-altera - update to 5.14.21-150500.55.124.1
gfs2-kmp-64kb - update to 5.14.21-150500.55.124.1
kernel-docs - update to 5.14.21-150500.55.124.1
dtb-sprd - update to 5.14.21-150500.55.124.1
dtb-mediatek - update to 5.14.21-150500.55.124.1
dtb-arm - update to 5.14.21-150500.55.124.1
dtb-renesas - update to 5.14.21-150500.55.124.1
dtb-freescale - update to 5.14.21-150500.55.124.1
kernel-64kb-optional-debuginfo - update to 5.14.21-150500.55.124.1
kernel-64kb-debugsource - update to 5.14.21-150500.55.124.1
kernel-64kb-optional - update to 5.14.21-150500.55.124.1
kselftests-kmp-64kb - update to 5.14.21-150500.55.124.1
gfs2-kmp-64kb-debuginfo - update to 5.14.21-150500.55.124.1
cluster-md-kmp-64kb-debuginfo - update to 5.14.21-150500.55.124.1
dtb-cavium - update to 5.14.21-150500.55.124.1
dlm-kmp-default - update to 5.14.21-150500.55.124.1
dtb-aarch64 - update to 5.14.21-150500.55.124.1
kernel-syms - update to 5.14.21-150500.55.124.1
kernel-default-livepatch - update to 5.14.21-150500.55.124.1
ocfs2-kmp-default-debuginfo - update to 5.14.21-150500.55.124.1
kernel-default - update to 5.14.21-150500.55.124.1
kernel-default-livepatch-devel - update to 5.14.21-150500.55.124.1
kernel-kvmsmall-vdso - update to 5.14.21-150500.55.124.1
kernel-kvmsmall-vdso-debuginfo - update to 5.14.21-150500.55.124.1
kernel-default-vdso-debuginfo - update to 5.14.21-150500.55.124.1
kernel-default-vdso - update to 5.14.21-150500.55.124.1
kernel-kvmsmall - update to 5.14.21-150500.55.124.1
kernel-zfcpdump - update to 5.14.21-150500.55.124.1
kernel-zfcpdump-debugsource - update to 5.14.21-150500.55.124.1
kernel-zfcpdump-debuginfo - update to 5.14.21-150500.55.124.1
dtb-amlogic - update to 5.14.21-150500.55.124.1
kernel-default-base - update to 5.14.21-150500.55.124.1.150500.6.59.1
kernel-default-base-rebuild - update to 5.14.21-150500.55.124.1.150500.6.59.1

• https://git.kernel.org/stable/c/09a3b0c9c7c6b10587fbb610b718014703cff341
• https://git.kernel.org/stable/c/50757a259ba78c4e938b5735e76ffec6cd0c942e
• https://git.kernel.org/stable/c/a190cd9dc62d6ebeb679c1abe9dda4162dfefc84
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.16

• Race condition in Linux kernel bluetooth
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• Red Hat Enterprise Linux 9 update for kernel-rt