Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.0, < 5.4.150 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/5fdb55c1ac9585eb23bb2541d5819224429e103dPatch
- https://git.kernel.org/stable/c/aa2c274c279ff365a06a4cba263f04965895166ePatch
- https://git.kernel.org/stable/c/b95483d8d94b41fa31a84c1d86710b7907a37621Patch
- https://git.kernel.org/stable/c/d5b0473707fa53b03a5db0256ce62b2874bddbc7Patch
- https://git.kernel.org/stable/c/5fdb55c1ac9585eb23bb2541d5819224429e103dPatch
- https://git.kernel.org/stable/c/aa2c274c279ff365a06a4cba263f04965895166ePatch
- https://git.kernel.org/stable/c/b95483d8d94b41fa31a84c1d86710b7907a37621Patch
- https://git.kernel.org/stable/c/d5b0473707fa53b03a5db0256ce62b2874bddbc7Patch
FAQ
What is CVE-2021-47360?
CVE-2021-47360 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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....
How severe is CVE-2021-47360?
CVE-2021-47360 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-47360?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.