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
Configurations
Configuration 1 (hide)
|
History
17 Mar 2025, 15:03
| Type | Values Removed | Values Added |
|---|---|---|
| CWE | CWE-770 | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| First Time |
Linux linux Kernel
Linux |
|
| CPE | cpe:2.3:o:linux:linux_kernel:5.13:rc3:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:5.13:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:5.13:rc2:*:*:*:*:*:* |
|
| References | () https://git.kernel.org/stable/c/2ab21d6e1411999b5fb43434f421f00bf50002eb - Patch | |
| References | () https://git.kernel.org/stable/c/2c835fede13e03f2743a333e4370b5ed2db91e83 - Patch | |
| References | () https://git.kernel.org/stable/c/4f2629ea67e7225c3fd292c7fe4f5b3c9d6392de - Patch | |
| References | () https://git.kernel.org/stable/c/8d83f109e920d2776991fa142bb904d985dca2ed - Patch | |
| References | () https://git.kernel.org/stable/c/9f7cb3f01a10d9064cf13b3d26fb7e7a5827d098 - Patch |
Information
Published : 2024-03-25 10:15
Updated : 2025-03-17 15:03
NVD link : CVE-2021-47170
Mitre link : CVE-2021-47170
CVE.ORG link : CVE-2021-47170
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-770
Allocation of Resources Without Limits or Throttling