SB2026022461 - Ubuntu update for linux



SB2026022461 - Ubuntu update for linux

Published: February 24, 2026

Security Bulletin ID SB2026022461
Severity
Low
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Buffer overflow (CVE-ID: CVE-2025-21780)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to memory corruption within the smu_sys_set_pp_table() function in drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c. A local user can escalate privileges on the system.


2) Buffer overflow (CVE-ID: CVE-2022-49267)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error caused by usage of sprintf() function in drivers/mmc/core/bus.c, drivers/mmc/core/sdio.c, drivers/mmc/core/sdio_bus.c, drivers/mmc/core/sd.c, and drivers/mmc/core/mmc.c files. A local user can trigger memory corruption and execute arbitrary code on the target system.


Remediation

Install update from vendor's website.