CVE-2024-39493 Information

Description

In the Linux kernel the following vulnerability has been resolved:

crypto: qat - Fix ADF_DEV_RESET_SYNC memory leak

Using completion_done to determine whether the caller has gone away only works after a complete call. Furthermore it’s still possible that the caller has not yet called wait_for_completion resulting in another potential UAF.

Fix this by making the caller use cancel_work_sync and then freeing the memory safely.

Reference

https://git.kernel.org/stable/c/0ce5964b82f212f4df6a9813f09a0b5de15bd9c8 https://git.kernel.org/stable/c/6396b33e98c096bff9c253ed49c008247963492a https://git.kernel.org/stable/c/a718b6d2a329e069b27d9049a71be5931e71d960 https://git.kernel.org/stable/c/3fb4601e0db10d4fe25e46f3fa308d40d37366bd https://git.kernel.org/stable/c/e7428e7e3fe94a5089dc12ffe5bc31574d2315ad https://git.kernel.org/stable/c/c2d443aa1ae3175c13a665f3a24b8acd759ce9c3 https://git.kernel.org/stable/c/d0fd124972724cce0d48b9865ce3e273ef69e246 https://git.kernel.org/stable/c/d3b17c6d9dddc2db3670bc9be628b122416a3d26