Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: qcom/emac: fix UAF in emac_remove adpt is netdev private data and it cannot be used after free_netdev() call. Using adpt after free_netdev() can cause UAF bug. Fix it by moving free_netdev() at the end of the function.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 4.9, < 4.9.277 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/11e9d163d631198bb3eb41a677a61b499516c0f7Patch
- https://git.kernel.org/stable/c/2b70ca92847c619d6264c7372ef74fcbfd1e048cPatch
- https://git.kernel.org/stable/c/4d04a42b926e682140776e54188f4a44f1f01a81Patch
- https://git.kernel.org/stable/c/8a225a6e07a57a1538d53637cb3d82bd3e477839Patch
- https://git.kernel.org/stable/c/ad297cd2db8953e2202970e9504cab247b6c7cb4Patch
- https://git.kernel.org/stable/c/b1e091331920f8fbfc747dcbd16263fcd71abb2dPatch
- https://git.kernel.org/stable/c/b560521eca03d0a2db6093a5a632cbdd0a0cf833Patch
- https://git.kernel.org/stable/c/11e9d163d631198bb3eb41a677a61b499516c0f7Patch
- https://git.kernel.org/stable/c/2b70ca92847c619d6264c7372ef74fcbfd1e048cPatch
- https://git.kernel.org/stable/c/4d04a42b926e682140776e54188f4a44f1f01a81Patch
- https://git.kernel.org/stable/c/8a225a6e07a57a1538d53637cb3d82bd3e477839Patch
- https://git.kernel.org/stable/c/ad297cd2db8953e2202970e9504cab247b6c7cb4Patch
- https://git.kernel.org/stable/c/b1e091331920f8fbfc747dcbd16263fcd71abb2dPatch
- https://git.kernel.org/stable/c/b560521eca03d0a2db6093a5a632cbdd0a0cf833Patch
FAQ
What is CVE-2021-47311?
CVE-2021-47311 is a vulnerability with a CVSS score of 7.8 (HIGH). In the Linux kernel, the following vulnerability has been resolved: net: qcom/emac: fix UAF in emac_remove adpt is netdev private data and it cannot be used after free_netdev() call. Using adpt afte...
How severe is CVE-2021-47311?
CVE-2021-47311 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-47311?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.