Incomplete Cleanup Affecting kernel-core package, versions *
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Test your applications- Snyk ID SNYK-RHEL9-KERNELCORE-6976280
- published 22 May 2024
- disclosed 21 May 2024
Introduced: 21 May 2024
CVE-2021-47360 Open this link in a new tabHow to fix?
There is no fixed version for RHEL:9 kernel-core.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-core package and not the kernel-core package as distributed by RHEL.
See How to fix? for RHEL:9 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
binder: make sure fd closes complete
During BC_FREE_BUFFER processing, the BINDER_TYPE_FDA object cleanup may close 1 or more fds. The close operations are completed using the task work mechanism -- which means the thread needs to return to userspace or the file object may never be dereferenced -- which can lead to hung processes.
Force the binder thread back to userspace if an fd is closed during BC_FREE_BUFFER handling.
References
- https://access.redhat.com/security/cve/CVE-2021-47360
- https://git.kernel.org/stable/c/5fdb55c1ac9585eb23bb2541d5819224429e103d
- https://git.kernel.org/stable/c/aa2c274c279ff365a06a4cba263f04965895166e
- https://git.kernel.org/stable/c/b95483d8d94b41fa31a84c1d86710b7907a37621
- https://git.kernel.org/stable/c/d5b0473707fa53b03a5db0256ce62b2874bddbc7