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CVE-2021-47123CVSS 7.8Linux
CVE-2021-47123: linux kernel vulnerability
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.
- CVSS
- 7.8 HIGH
- EPSS
- 12.39%
- Активно використовується
- немає в KEV
- Продукт
- linux kernel
Що відомо
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.