GSD-2021-1001395 coresight: tmc-etf: Fix global-out-of-bounds in tmc_update_etf_buffer()
A global-out-of-bounds memory access in the Linux kernel's CoreSight TMC ETF driver could lead to system crashes or potential code execution.
- Exploited in the wild
- Not known
- Login needed
- Not stated
- Attackable
- Not stated
- Victim action needed
- Not stated
- Fix
- None listed
What is GSD-2021-1001395?
GSD-2021-1001395 is a memory corruption vulnerability in Kernel, published on 3 Aug 2021.
Official description
coresight: tmc-etf: Fix global-out-of-bounds in tmc_update_etf_buffer()
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 v4.19.198 by commit 04bd77ef4f4d9fc6102023b85f4590fc2130aac5, it was introduced in version v4.14 by commit 0c3fc4d5fa26092853278145aca9b21fa52a3e93. For more details please see the references link.
Which versions are affected by GSD-2021-1001395?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1001395?
No fix has been published for GSD-2021-1001395 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is GSD-2021-1001395 being exploited?
There is no known exploitation of GSD-2021-1001395 in the wild and no public exploit code.