CVE-2021-47311
High
CVE-2021-47311
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.
Exploit probability
0.3%
Published
May 21, 2024
Required by
Not available
Last source change
March 15, 2026
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
Open Source Vulnerabilities
CVE-2021-47311
View original source
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.
05 / REFERENCES
Further evidence
- https://git.kernel.org/stable/c/11e9d163d631198bb3eb41a677a61b499516c0f7
- https://git.kernel.org/stable/c/2b70ca92847c619d6264c7372ef74fcbfd1e048c
- https://git.kernel.org/stable/c/4d04a42b926e682140776e54188f4a44f1f01a81
- https://git.kernel.org/stable/c/8a225a6e07a57a1538d53637cb3d82bd3e477839
- https://git.kernel.org/stable/c/ad297cd2db8953e2202970e9504cab247b6c7cb4
- https://git.kernel.org/stable/c/b1e091331920f8fbfc747dcbd16263fcd71abb2d
- https://git.kernel.org/stable/c/b560521eca03d0a2db6093a5a632cbdd0a0cf833