linux: In the Linux kernel, the following vulnerability has been resolved: USB: usbfs: Don't WARN about excessively large m...
CVE-2021-47170 is fixed in linux on 1 platform, first by DEBIAN-CVE-2021-47170, released March 25, 2024. It is not reported as exploited. Patch Radar priority: Routine.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| linux · Debian 12.15 (bookworm) | 5.14.6-1 | DEBIAN-CVE-2021-47170 | Mar 25, 2024 |
| linux · Debian 13.5 (trixie) | 5.14.6-1 | DEBIAN-CVE-2021-47170 | Mar 25, 2024 |
| linux · Debian 14 | 5.14.6-1 | DEBIAN-CVE-2021-47170 | Mar 25, 2024 |
Patch Radar data is free to use with attribution. Terms and how to credit it.
Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.