CVE-2021-47239

May 21, 2024, 4:54 p.m.

None
No Score

Description

In the Linux kernel, the following vulnerability has been resolved: net: usb: fix possible use-after-free in smsc75xx_bind The commit 46a8b29c6306 ("net: usb: fix memory leak in smsc75xx_bind") fails to clean up the work scheduled in smsc75xx_reset-> smsc75xx_set_multicast, which leads to use-after-free if the work is scheduled to start after the deallocation. In addition, this patch also removes a dangling pointer - dev->data[0]. This patch calls cancel_work_sync to cancel the scheduled work and set the dangling pointer to NULL.

Product(s) Impacted

Product Versions
Linux kernel

Weaknesses

Common security weaknesses mapped to this vulnerability.

References

https://git.kernel.org/stable/c/14616c372a7be01a2fb8c56c9d8debd232b9e43d
https://git.kernel.org/stable/c/2fc8300c9cfa5167fcb5b1a2a07db6f53e82f59b
https://git.kernel.org/stable/c/4252bf6c2b245f47011098113d405ffad6ad5d5b
https://git.kernel.org/stable/c/56b786d86694e079d8aad9b314e015cd4ac02a3d
https://git.kernel.org/stable/c/570a52cf3e01d19f7fd1a251dfc52b0cd86c13cb
https://git.kernel.org/stable/c/64160d1741a3de5204d1a822e058e0b4cc526504
https://git.kernel.org/stable/c/7cc8b2e05fcea6edd022d26e82091d781af8fd9b
https://git.kernel.org/stable/c/c4e3be2e7742863e454ce31faf8fd0109c00050b

Tags

416baaa9-dc9f-4396-8d5f-8c081fb06d67
2024-05-21
CVE-2021-47239

Timeline

Published: May 21, 2024, 3:15 p.m.
Last Modified: May 21, 2024, 4:54 p.m.

Status : Awaiting Analysis

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

416baaa9-dc9f-4396-8d5f-8c081fb06d67

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.