SB2024090547 - Improper locking in Linux kernel xen driver
Published: September 5, 2024 Updated: May 12, 2025
Security Bulletin ID
SB2024090547
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) Improper locking (CVE-ID: CVE-2024-44957)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the DEFINE_MUTEX(), irqfd_wakeup(), irqfd_poll_func(), privcmd_irqfd_assign(), privcmd_irqfd_deassign() and privcmd_irqfd_init() functions in drivers/xen/privcmd.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/c2775ae4d9227729f8ca9ee2a068f62a00d5ea9c
- https://git.kernel.org/stable/c/49f2a5da6785b2dbde93e291cae037662440346e
- https://git.kernel.org/stable/c/1c682593096a487fd9aebc079a307ff7a6d054a3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10.5
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.46