SB2024082225 - NULL pointer dereference in Linux kernel net driver
Published: August 22, 2024 Updated: May 12, 2025
Security Bulletin ID
SB2024082225
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2022-48914)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the xennet_close(), xennet_poll_controller() and xennet_destroy_queues() functions in drivers/net/xen-netfront.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/198cdc287769c717dafff5887c6125cb7a373bf3
- https://git.kernel.org/stable/c/b40c912624775a21da32d1105e158db5f6d0554a
- https://git.kernel.org/stable/c/a1753d5c29a6fb9a8966dcf04cb4f3b71e303ae8
- https://git.kernel.org/stable/c/a63eb1e4a2e1a191a90217871e67fba42fd39255
- https://git.kernel.org/stable/c/47e2f166ed9fe17f24561d6315be2228f6a90209
- https://git.kernel.org/stable/c/dcf4ff7a48e7598e6b10126cc02177abb8ae4f3f
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.233
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.104
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.27
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.183