GSD-2021-1002797 tee: optee: Fix incorrect page free bug
An incorrect page free bug in the Linux kernel OP-TEE driver may lead to memory corruption issues, requiring a kernel patch.
- Exploited in the wild
- Not known
- Login needed
- Not stated
- Attackable
- Not stated
- Victim action needed
- Not stated
- Fix
- None listed
What is GSD-2021-1002797?
GSD-2021-1002797 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 v5.4.169 by commit 806142c805cacd098e61bdc0f72c778a2389fe4a, it was introduced in version v5.4.140 by commit 3c712f14d8a9354a8807c15c64c8dd334499cc42. For more details please see the references link.
Which versions are affected by GSD-2021-1002797?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1002797?
No fix has been published for GSD-2021-1002797 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-2021-1002797 being exploited?
There is no known exploitation of GSD-2021-1002797 in the wild and no public exploit code.