CVE-2021-47171
net: usb: fix memory leak in smsc75xx_bind
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
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
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
2.6.34
References 8
git.kernel.org
- stable/c/200dbfcad8011e50c3cec269ed7b980836eeb1fa
- stable/c/22c840596af0c09068b6cf948616e6496e59e07f
- stable/c/9e6b8c1ff9d997e1fa16cbd2d60739adf6dc1bbc
- stable/c/9e6a3eccb28779710cbbafc4f4258d92509c6d07
- stable/c/b95fb96e6339e34694dd578fb6bde3575b01af17
- stable/c/635ac38b36255d3cfb8312cf7c471334f4d537e0
- stable/c/70c886ac93f87ae7214a0c69151a28a8075dd95b
- stable/c/46a8b29c6306d8bbfd92b614ef65a47c900d8e70