NULL pointer dereference in Linux kernel - CVE-2022-49703
Published: February 26, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104615
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-2022-49703
CWE-ID: CWE-476
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 NULL pointer dereference within the ibmvfc_alloc_queue() and ibmvfc_register_scsi_channel() functions in drivers/scsi/ibmvscsi/ibmvfc.c. A local user can perform a denial of service (DoS) attack.
How to mitigate CVE-2022-49703
Install update from vendor's website.
Sources
- https://git.kernel.org/stable/c/6d38e3b614ded59da8b95377a98df969a5a5627a
- https://git.kernel.org/stable/c/8540f66196ca35b7b5e902932571c18b9fde0cd1
- https://git.kernel.org/stable/c/aeaadcde1a60138bceb65de3cdaeec78170b4459
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.51
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.8
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19