CVE - CVE-2021-47170

CVE-ID
CVE-2021-47170	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
In the Linux kernel, the following vulnerability has been resolved: USB: usbfs: Don't WARN about excessively large memory allocations Syzbot found that the kernel generates a WARNing if the user tries to submit a bulk transfer through usbfs with a buffer that is way too large. This isn't a bug in the kernel; it's merely an invalid request from the user and the usbfs code does handle it correctly. In theory the same thing can happen with async transfers, or with the packet descriptor table for isochronous transfers. To prevent the MM subsystem from complaining about these bad allocation requests, add the __GFP_NOWARN flag to the kmalloc calls for these buffers.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/2ab21d6e1411999b5fb43434f421f00bf50002eb URL:https://git.kernel.org/stable/c/2ab21d6e1411999b5fb43434f421f00bf50002eb MISC:https://git.kernel.org/stable/c/2c835fede13e03f2743a333e4370b5ed2db91e83 URL:https://git.kernel.org/stable/c/2c835fede13e03f2743a333e4370b5ed2db91e83 MISC:https://git.kernel.org/stable/c/4f2629ea67e7225c3fd292c7fe4f5b3c9d6392de URL:https://git.kernel.org/stable/c/4f2629ea67e7225c3fd292c7fe4f5b3c9d6392de MISC:https://git.kernel.org/stable/c/8d83f109e920d2776991fa142bb904d985dca2ed URL:https://git.kernel.org/stable/c/8d83f109e920d2776991fa142bb904d985dca2ed MISC:https://git.kernel.org/stable/c/9f7cb3f01a10d9064cf13b3d26fb7e7a5827d098 URL:https://git.kernel.org/stable/c/9f7cb3f01a10d9064cf13b3d26fb7e7a5827d098
Assigning CNA
kernel.org
Date Record Created
20240325	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240325)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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