NULL pointer dereference in Linux kernel - CVE-2022-50350

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Main Vulnerability Database Vulnerabilities #VU115690

NULL pointer dereference in Linux kernel - CVE-2022-50350

Published: September 17, 2025 / Updated: September 22, 2025


Vulnerability identifier: #VU115690
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-2022-50350
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

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

The vulnerability exists due to NULL pointer dereference within the iscsi_target_handle_csg_one() and iscsi_target_start_negotiation() functions in drivers/target/iscsi/iscsi_target_nego.c. A local user can perform a denial of service (DoS) attack.


Affected software

Linux kernel
SUSE Linux Enterprise Server 12 SP5
SUSE Linux Enterprise Server 12 SP5 LTSS Extended
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Live Patching
openEuler
kgraft-patch-4_12_14-122_280-default
kernel-default-kgraft-devel
gfs2-kmp-default-debuginfo
kernel-syms
kernel-default-base
gfs2-kmp-default
kernel-default-debugsource
ocfs2-kmp-default-debuginfo
dlm-kmp-default-debuginfo
cluster-md-kmp-default-debuginfo
dlm-kmp-default
cluster-md-kmp-default
kernel-default-devel
kernel-default-debuginfo
kernel-default-base-debuginfo
kernel-default
kernel-source
kernel-devel
kernel-macros
kernel-default-man
kernel-default-devel-debuginfo
kernel-default-kgraft
ocfs2-kmp-default
kernel-tools
kernel-tools-debuginfo
kernel-tools-devel
perf
perf-debuginfo
python2-perf
python2-perf-debuginfo
python3-perf
python3-perf-debuginfo
kernel-debugsource
kernel-debuginfo
bpftool-debuginfo
bpftool
kernel
kernel-headers

How to mitigate CVE-2022-50350

Install update from vendor's repository.

Linux kernel - addressed in versions 6.0.16, 6.1.2, 6.2
kgraft-patch-4_12_14-122_280-default - update to 1-8.5.1
kernel-default-kgraft-devel - update to 4.12.14-122.280.1
gfs2-kmp-default-debuginfo - update to 4.12.14-122.280.1
kernel-syms - update to 4.12.14-122.280.1
kernel-default-base - update to 4.12.14-122.280.1
gfs2-kmp-default - update to 4.12.14-122.280.1
kernel-default-debugsource - update to 4.12.14-122.280.1
ocfs2-kmp-default-debuginfo - update to 4.12.14-122.280.1
dlm-kmp-default-debuginfo - update to 4.12.14-122.280.1
cluster-md-kmp-default-debuginfo - update to 4.12.14-122.280.1
dlm-kmp-default - update to 4.12.14-122.280.1
cluster-md-kmp-default - update to 4.12.14-122.280.1
kernel-default-devel - update to 4.12.14-122.280.1
kernel-default-debuginfo - update to 4.12.14-122.280.1
kernel-default-base-debuginfo - update to 4.12.14-122.280.1
kernel-default - update to 4.12.14-122.280.1
kernel-source - update to 4.12.14-122.280.1
kernel-devel - update to 4.12.14-122.280.1
kernel-macros - update to 4.12.14-122.280.1
kernel-default-man - update to 4.12.14-122.280.1
kernel-default-devel-debuginfo - update to 4.12.14-122.280.1
kernel-default-kgraft - update to 4.12.14-122.280.1
ocfs2-kmp-default - update to 4.12.14-122.280.1
kernel-source - addressed in versions 4.19.90-2510.1.0.0346, 5.10.0-284.0.0.186, 5.10.0-284.0.0.187
kernel-tools - addressed in versions 4.19.90-2510.1.0.0346, 5.10.0-284.0.0.186, 5.10.0-284.0.0.187
kernel-tools-debuginfo - addressed in versions 4.19.90-2510.1.0.0346, 5.10.0-284.0.0.186, 5.10.0-284.0.0.187
kernel-tools-devel - addressed in versions 4.19.90-2510.1.0.0346, 5.10.0-284.0.0.186, 5.10.0-284.0.0.187
perf - addressed in versions 4.19.90-2510.1.0.0346, 5.10.0-284.0.0.186, 5.10.0-284.0.0.187
perf-debuginfo - addressed in versions 4.19.90-2510.1.0.0346, 5.10.0-284.0.0.186, 5.10.0-284.0.0.187
python2-perf - update to 4.19.90-2510.1.0.0346
python2-perf-debuginfo - update to 4.19.90-2510.1.0.0346
python3-perf - addressed in versions 4.19.90-2510.1.0.0346, 5.10.0-284.0.0.186, 5.10.0-284.0.0.187
python3-perf-debuginfo - addressed in versions 4.19.90-2510.1.0.0346, 5.10.0-284.0.0.186, 5.10.0-284.0.0.187
kernel-devel - addressed in versions 4.19.90-2510.1.0.0346, 5.10.0-284.0.0.186, 5.10.0-284.0.0.187
kernel-debugsource - addressed in versions 4.19.90-2510.1.0.0346, 5.10.0-284.0.0.186, 5.10.0-284.0.0.187
kernel-debuginfo - addressed in versions 4.19.90-2510.1.0.0346, 5.10.0-284.0.0.186, 5.10.0-284.0.0.187
bpftool-debuginfo - addressed in versions 4.19.90-2510.1.0.0346, 5.10.0-284.0.0.187
bpftool - addressed in versions 4.19.90-2510.1.0.0346, 5.10.0-284.0.0.187
kernel - addressed in versions 4.19.90-2510.1.0.0346, 5.10.0-284.0.0.186, 5.10.0-284.0.0.187
kernel-headers - addressed in versions 5.10.0-284.0.0.186, 5.10.0-284.0.0.187

External References

Related Security Bulletins