Use-after-free in Linux kernel - CVE-2022-1836

Vulnerability identifier: #VU64087

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-2022-1836

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 use-after-free error in the drivers/block/floppy.c in the floppy driver module in the Linux kernel when working with raw_cmd_ioctl and seek_interrupt. A local user can trigger use-after-free to escalate privileges on the system.

Linux kernel
Anolis OS
SUSE Linux Enterprise Real Time Extension
openEuler
Ubuntu
dlm-kmp-rt
kernel-rt_debug-debuginfo
kernel-rt_debug
kernel-rt-devel-debuginfo
kernel-rt-devel
kernel-rt-debugsource
kernel-rt-debuginfo
kernel-rt-base-debuginfo
kernel-rt-base
kernel-rt
gfs2-kmp-rt-debuginfo
gfs2-kmp-rt
dlm-kmp-rt-debuginfo
cluster-md-kmp-rt-debuginfo
cluster-md-kmp-rt
kernel-source-rt
kernel-devel-rt
kernel-rt_debug-debugsource
kernel-rt_debug-devel
kernel-rt_debug-devel-debuginfo
kernel-syms-rt
ocfs2-kmp-rt
ocfs2-kmp-rt-debuginfo
python2-perf
perf
python2-perf-debuginfo
kernel-devel
kernel-debuginfo
bpftool
kernel-tools-devel
kernel-source
python3-perf-debuginfo
kernel
perf-debuginfo
kernel-tools
bpftool-debuginfo
python3-perf
kernel-tools-debuginfo
kernel-debugsource
kernel-debug-devel
python-perf
kernel-core
kernel-debug
kernel-debug-core
kernel-tools-libs
kernel-tools-libs-devel
kernel-headers
kernel-debug-modules-extra
kernel-modules-internal
kernel-modules-extra
kernel-modules
kernel-debug-modules
linux-image-oem-20.04c (Ubuntu package)
linux-image-oem-20.04 (Ubuntu package)
linux-image-oem-20.04d (Ubuntu package)
linux-image-oem-20.04b (Ubuntu package)
linux-image-oem-22.04a (Ubuntu package)
linux-image-oem-22.04 (Ubuntu package)
linux-image-5.14.0-1042-oem (Ubuntu package)
linux-image-5.17.0-1011-oem (Ubuntu package)

Install updates from vendor's website.

Linux kernel - update to 5.18 rc5
dlm-kmp-rt - update to 4.12.14-10.94.1
kernel-rt_debug-debuginfo - update to 4.12.14-10.94.1
kernel-rt_debug - update to 4.12.14-10.94.1
kernel-rt-devel-debuginfo - update to 4.12.14-10.94.1
kernel-rt-devel - update to 4.12.14-10.94.1
kernel-rt-debugsource - update to 4.12.14-10.94.1
kernel-rt-debuginfo - update to 4.12.14-10.94.1
kernel-rt-base-debuginfo - update to 4.12.14-10.94.1
kernel-rt-base - update to 4.12.14-10.94.1
kernel-rt - update to 4.12.14-10.94.1
gfs2-kmp-rt-debuginfo - update to 4.12.14-10.94.1
gfs2-kmp-rt - update to 4.12.14-10.94.1
dlm-kmp-rt-debuginfo - update to 4.12.14-10.94.1
cluster-md-kmp-rt-debuginfo - update to 4.12.14-10.94.1
cluster-md-kmp-rt - update to 4.12.14-10.94.1
kernel-source-rt - update to 4.12.14-10.94.1
kernel-devel-rt - update to 4.12.14-10.94.1
kernel-rt_debug-debugsource - update to 4.12.14-10.94.1
kernel-rt_debug-devel - update to 4.12.14-10.94.1
kernel-rt_debug-devel-debuginfo - update to 4.12.14-10.94.1
kernel-syms-rt - update to 4.12.14-10.94.1
ocfs2-kmp-rt - update to 4.12.14-10.94.1
ocfs2-kmp-rt-debuginfo - update to 4.12.14-10.94.1
python2-perf - update to 4.19.90-2206.1.0.0153
perf - update to 4.19.90-2206.1.0.0153
python2-perf-debuginfo - update to 4.19.90-2206.1.0.0153
kernel-devel - update to 4.19.90-2206.1.0.0153
kernel-debuginfo - update to 4.19.90-2206.1.0.0153
bpftool - update to 4.19.90-2206.1.0.0153
kernel-tools-devel - update to 4.19.90-2206.1.0.0153
kernel-source - update to 4.19.90-2206.1.0.0153
python3-perf-debuginfo - update to 4.19.90-2206.1.0.0153
kernel - update to 4.19.90-2206.1.0.0153
perf-debuginfo - update to 4.19.90-2206.1.0.0153
kernel-tools - update to 4.19.90-2206.1.0.0153
bpftool-debuginfo - update to 4.19.90-2206.1.0.0153
python3-perf - update to 4.19.90-2206.1.0.0153
kernel-tools-debuginfo - update to 4.19.90-2206.1.0.0153
kernel-debugsource - update to 4.19.90-2206.1.0.0153
kernel-debug-devel - addressed in versions 4.19.91-27.1, 4.19.91-28, 5.10.134-12
perf - addressed in versions 4.19.91-27.1, 4.19.91-28, 5.10.134-12
python-perf - addressed in versions 4.19.91-27.1, 4.19.91-28
bpftool - addressed in versions 4.19.91-27.1, 4.19.91-28, 5.10.134-12
kernel - addressed in versions 4.19.91-27.1, 4.19.91-28, 5.10.134-12
kernel-core - addressed in versions 4.19.91-27.1, 4.19.91-28, 5.10.134-12
kernel-debug - addressed in versions 4.19.91-27.1, 4.19.91-28, 5.10.134-12
kernel-debug-core - addressed in versions 4.19.91-27.1, 4.19.91-28, 5.10.134-12
kernel-tools-libs - addressed in versions 4.19.91-27.1, 4.19.91-28, 5.10.134-12
kernel-tools-libs-devel - addressed in versions 4.19.91-27.1, 4.19.91-28, 5.10.134-12
kernel-devel - addressed in versions 4.19.91-27.1, 4.19.91-28, 5.10.134-12
kernel-headers - addressed in versions 4.19.91-27.1, 4.19.91-28, 5.10.134-12
kernel-tools - addressed in versions 4.19.91-27.1, 4.19.91-28, 5.10.134-12
kernel-debug-modules-extra - addressed in versions 4.19.91-27.1, 4.19.91-28, 5.10.134-12
python3-perf - addressed in versions 4.19.91-27.1, 4.19.91-28, 5.10.134-12
kernel-modules-internal - addressed in versions 4.19.91-27.1, 4.19.91-28, 5.10.134-12
kernel-modules-extra - addressed in versions 4.19.91-27.1, 4.19.91-28, 5.10.134-12
kernel-modules - addressed in versions 4.19.91-27.1, 4.19.91-28, 5.10.134-12
kernel-debug-modules - addressed in versions 4.19.91-27.1, 4.19.91-28, 5.10.134-12
linux-image-oem-20.04c (Ubuntu package) - update to 5.14.0.1042.38
linux-image-oem-20.04 (Ubuntu package) - update to 5.14.0.1042.38
linux-image-oem-20.04d (Ubuntu package) - update to 5.14.0.1042.38
linux-image-oem-20.04b (Ubuntu package) - update to 5.14.0.1042.38
linux-image-5.14.0-1042-oem (Ubuntu package) - update to 5.14.0-1042.47
linux-image-oem-22.04a (Ubuntu package) - update to 5.17.0.1011.10
linux-image-oem-22.04 (Ubuntu package) - update to 5.17.0.1011.10
linux-image-5.17.0-1011-oem (Ubuntu package) - update to 5.17.0-1011.12

• https://ubuntu.com/security/notices/USN-5471-1
• https://bugzilla.redhat.com/show_bug.cgi?id=2080330

• Ubuntu update for linux-oem-5.14
• Ubuntu update for linux-oem-5.17
• SUSE update for the Linux Kernel
• openEuler update for kernel
• Anolis OS update for kernel
• Anolis OS update for kernel(ANCK)4.19
• Anolis OS update for kernel
• Anolis OS update for kernel
• Anolis OS update for kernel