Improper locking in Linux kernel - CVE-2022-49542
Published: February 26, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104676
CSH Severity: Low
CVSS v4.0: 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/E:U/U:Clear
CVE-ID: CVE-2022-49542
CWE-ID: CWE-667
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the lpfc_dmp_dbg() function in drivers/scsi/lpfc/lpfc_init.c. A local user can perform a denial of service (DoS) attack.
How to mitigate CVE-2022-49542
Install update from vendor's website.
Sources
- https://git.kernel.org/stable/c/09c772557a4fd9490fed1bfb133268313ea22213
- https://git.kernel.org/stable/c/271725e4028559ae7974d762a8467dc9de412f2e
- https://git.kernel.org/stable/c/cc6501afccec55b8b6c90584cbf71f1fefa77d1e
- https://git.kernel.org/stable/c/e294647b1aed4247fe52851f3a3b2b19ae906228
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.46
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.14
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19