Race condition in Linux kernel - CVE-2022-50044

Vulnerability identifier: #VU111648

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-2022-50044

CWE-ID: CWE-362

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 race condition within the qcom_mhi_qrtr_probe() function in net/qrtr/mhi.c. A local user can escalate privileges on the system.

Linux kernel
SUSE Linux Enterprise High Performance Computing 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
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
kernel-livepatch-5_14_21-150500_55_113-default-debuginfo
kernel-livepatch-SLE15-SP5_Update_28-debugsource
kernel-livepatch-5_14_21-150500_55_113-default
kernel (Red Hat package)
kernel-rt (Red Hat package)
kernel-default
kernel-default-debuginfo
kernel-default-debugsource
kernel-default-livepatch-devel
kernel-default-livepatch

Install update from vendor's repository.

Linux kernel - update to 5.15.63
kernel-livepatch-5_14_21-150500_55_113-default-debuginfo - update to 1-150500.11.3.1
kernel-livepatch-SLE15-SP5_Update_28-debugsource - update to 1-150500.11.3.1
kernel-livepatch-5_14_21-150500_55_113-default - update to 1-150500.11.3.1
kernel (Red Hat package) - update to 5.14.0-70.144.1.el9_0
kernel-rt (Red Hat package) - update to 5.14.0-70.144.1.rt21.216.el9_0
kernel-default - update to 5.14.21-150500.55.113.1
kernel-default-debuginfo - update to 5.14.21-150500.55.113.1
kernel-default-debugsource - update to 5.14.21-150500.55.113.1
kernel-default-livepatch-devel - update to 5.14.21-150500.55.113.1
kernel-default-livepatch - update to 5.14.21-150500.55.113.1

• https://git.kernel.org/stable/c/68a838b84effb7b57ba7d50b1863fc6ae35a54ce
• https://git.kernel.org/stable/c/a1a75f78a2937567946b1b756f82462874b5ca20
• https://git.kernel.org/stable/c/c682fb70a7dfc25b848a4ff3a385b0471b470606
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.63

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