high7.8
CVE-2021-47123
In the Linux kernel, the following vulnerability has been resolved: io_uring: fix ltout double free on completion race Always remove linked timeout on io_link_…
Impact
In the Linux kernel, the following vulnerability has been resolved: io_uring: fix ltout double free on completion race Always remove linked timeout on io_link_timeout_fn() from the master request link list, otherwise we may get use-after-free when first io_link_timeout_fn() puts linked timeout in the fail path, and then will be found and put on master's free.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Linux | Linux Kernel | from 5.11 before 5.12.10 Version 5.13 |
Weakness classification
References
- NVD record
- CVE.org record
- https://git.kernel.org/stable/c/1f64f5e903b9d1d157875721e02adadc9d6f0a5d
- https://git.kernel.org/stable/c/447c19f3b5074409c794b350b10306e1da1ef4ba
- https://git.kernel.org/stable/c/1f64f5e903b9d1d157875721e02adadc9d6f0a5d
- https://git.kernel.org/stable/c/447c19f3b5074409c794b350b10306e1da1ef4ba