SB2024071738 - Use-after-free in Linux kernel iommu driver
Published: July 17, 2024 Updated: May 13, 2025
Security Bulletin ID
SB2024071738
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2022-48796)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the dev_iommu_get() function in drivers/iommu/iommu.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/cb86e511e78e796de6947b8f3acca1b7c76fb2ff
- https://git.kernel.org/stable/c/65ab30f6a6952fa9ee13009862736cf8d110e6e5
- https://git.kernel.org/stable/c/f74fc4b5bd533ea3d30ce47cccb8ef8d21fda85a
- https://git.kernel.org/stable/c/b54240ad494300ff0994c4539a531727874381f4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.101
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.24
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.10
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17