CVE-2021-47171
MEDIUMLinux Kernel 2.6.34-4.4.270 - Use-After-Free in smsc75xx_bind
Title source: llmDescription
In the Linux kernel, the following vulnerability has been resolved: net: usb: fix memory leak in smsc75xx_bind Syzbot reported memory leak in smsc75xx_bind(). The problem was is non-freed memory in case of errors after memory allocation. backtrace: [<ffffffff84245b62>] kmalloc include/linux/slab.h:556 [inline] [<ffffffff84245b62>] kzalloc include/linux/slab.h:686 [inline] [<ffffffff84245b62>] smsc75xx_bind+0x7a/0x334 drivers/net/usb/smsc75xx.c:1460 [<ffffffff82b5b2e6>] usbnet_probe+0x3b6/0xc30 drivers/net/usb/usbnet.c:1728
References (8)
Core 8
Core References
Scores
CVSS v3
5.5
EPSS
0.0024
EPSS Percentile
15.0%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-401
Status
published
Products (19)
Linux/Linux
< 2.6.34
Linux/Linux
2.6.34
Linux/Linux
4.14.235 - 4.14.*
Linux/Linux
4.19.193 - 4.19.*
Linux/Linux
4.4.271 - 4.4.*
Linux/Linux
4.9.271 - 4.9.*
Linux/Linux
5.10.42 - 5.10.*
Linux/Linux
5.12.9 - 5.12.*
Linux/Linux
5.13
Linux/Linux
5.4.124 - 5.4.*
... and 9 more
Published
Mar 25, 2024
Tracked Since
Feb 18, 2026