GSD-2021-1002841 tee: optee: Fix incorrect page free bug
A use-after-free bug in the Linux kernel's OP-TEE driver could allow attackers to execute arbitrary code or cause a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not stated
- Attackable
- Not stated
- Victim action needed
- Not stated
- Fix
- None listed
What is GSD-2021-1002841?
GSD-2021-1002841 is an use after free vulnerability in Kernel, published on 30 Dec 2021.
Official description
tee: optee: Fix incorrect page free bug
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.15.12 by commit 91e94e42f6fc49635f1a16d8ae3f79552bcfda29, it was introduced in version v5.14 by commit ec185dd3ab257dc2a60953fdf1b6622f524cc5b7. For more details please see the references link.
Which versions are affected by GSD-2021-1002841?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1002841?
No fix has been published for GSD-2021-1002841 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is GSD-2021-1002841 being exploited?
There is no known exploitation of GSD-2021-1002841 in the wild and no public exploit code.