CVE-2021-47405: HID: usbhid: free raw_report buffers in usbhid_stop
First published: Tue May 21 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: HID: usbhid: free raw_report buffers in usbhid_stop Free the unsent raw_report buffers when the device is removed. Fixes a memory leak reported by syzbot at: https://syzkaller.appspot.com/bug?id=7b4fa7cb1a7c2d3342a2a8a6c53371c8c418ab47
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | ||
| Linux Kernel | <4.4.286 | |
| Linux Kernel | >=4.5<4.9.285 | |
| Linux Kernel | >=4.10<4.14.249 | |
| Linux Kernel | >=4.15<4.19.209 | |
| Linux Kernel | >=4.20<5.4.151 | |
| Linux Kernel | >=5.5<5.10.71 | |
| Linux Kernel | >=5.11<5.14.10 |
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Reference Links
- https://git.kernel.org/stable/c/7ce4e49146612261265671b1d30d117139021030
- https://git.kernel.org/stable/c/efc5c8d29256955cc90d8d570849b2d6121ed09f
- https://git.kernel.org/stable/c/c3156fea4d8a0e643625dff69a0421e872d1fdae
- https://git.kernel.org/stable/c/764ac04de056801dfe52a716da63f6e7018e7f3b
- https://git.kernel.org/stable/c/965147067fa1bedff3ae1f07ce3f89f1a14d2df3
- https://git.kernel.org/stable/c/f7ac4d24e1610b92689946fa88177673f1e88a3f
- https://git.kernel.org/stable/c/2b704864c92dcec2b295f276fcfbfb81d9831f81
- https://git.kernel.org/stable/c/f7744fa16b96da57187dc8e5634152d3b63d72de
Frequently Asked Questions
What is the severity of CVE-2021-47405?
CVE-2021-47405 has a medium severity level due to its potential for causing a memory leak.
How do I fix CVE-2021-47405?
To resolve CVE-2021-47405, upgrade your Linux kernel to a version higher than the affected versions, as specified in the advisory.
Which versions of the Linux kernel are affected by CVE-2021-47405?
CVE-2021-47405 affects various versions of the Linux kernel, specifically those from 4.4.x to 5.14.x.
What impact does CVE-2021-47405 have on systems?
CVE-2021-47405 can lead to a memory leak when a device is removed, potentially affecting system performance.
Is CVE-2021-47405 exploitable remotely?
CVE-2021-47405 is not considered to be remotely exploitable and requires local access to the affected system.
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