Use-after-free in Linux kernel - CVE-2024-26892
Published: May 31, 2024 / Updated: May 14, 2025
Vulnerability identifier: #VU90201
CSH Severity: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2024-26892
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the mt792x_irq_handler() function in drivers/net/wireless/mediatek/mt76/mt792x_dma.c, within the mt7921_pci_remove() function in drivers/net/wireless/mediatek/mt76/mt7921/pci.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/c7dd42fbebcfb02bef070fd48f774d6412d0b49d
- https://git.kernel.org/stable/c/bfe1adf1606f76c180324e53b130f0e76d5cc6c3
- https://git.kernel.org/stable/c/bfeaef901194c5923ce3330272786eff2fac513a
- https://git.kernel.org/stable/c/c957280ef6ab6bdf559a91ae693a6b34310697e3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.23
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.11
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8.2