SB2024062755 - Improper locking in Linux kernel drm scheduler driver
Published: June 27, 2024 Updated: May 13, 2025
Security Bulletin ID
SB2024062755
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-2021-47354)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the drm_sched_entity_kill_jobs_cb() function in drivers/gpu/drm/scheduler/sched_entity.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/c32d0f0e164ffab2a56c7cf8e612584b4b740e2e
- https://git.kernel.org/stable/c/0687411e2a8858262de2fc4a1d576016fd77292e
- https://git.kernel.org/stable/c/a8e23e3c1ff9ec598ab1b3a941ace6045027781f
- https://git.kernel.org/stable/c/50d7e03ad487cc45fc85164a299b945a41756ac0
- https://git.kernel.org/stable/c/0b10ab80695d61422337ede6ff496552d8ace99d
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.51
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.18
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.133