SB2025100885 - NULL pointer dereference in Linux kernel hv driver
Published: October 8, 2025 Updated: October 26, 2025
Security Bulletin ID
SB2025100885
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-2023-53647)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the vmbus_acpi_add() function in drivers/hv/vmbus_drv.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/64f09d45e94547fbf219f36d1d02ac42742c028c
- https://git.kernel.org/stable/c/78e04bbff849b51b56f5925b1945db2c6e128b61
- https://git.kernel.org/stable/c/96db43aced395844a7abc9a0a5cc702513e3534a
- https://git.kernel.org/stable/c/9fc162c59edc841032a3553eb2334320abab0784
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.16