5.5

CVE-2021-47171

net: usb: fix memory leak in smsc75xx_bind

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
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 2.6.34 < 4.4.271
Linux ≫ Linux Kernel Version >= 4.5 < 4.9.271
Linux ≫ Linux Kernel Version >= 4.10 < 4.14.235
Linux ≫ Linux Kernel Version >= 4.15 < 4.19.193
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.124
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.42
Linux ≫ Linux Kernel Version >= 5.11 < 5.12.9
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.24% 0.149
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-401 Missing Release of Memory after Effective Lifetime

The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.

https://git.kernel.org/stable/c/200dbfcad8011e50c3cec269ed7b980836eeb1fa
Patch
https://git.kernel.org/stable/c/22c840596af0c09068b6cf948616e6496e59e07f
Patch
https://git.kernel.org/stable/c/46a8b29c6306d8bbfd92b614ef65a47c900d8e70
Patch
https://git.kernel.org/stable/c/635ac38b36255d3cfb8312cf7c471334f4d537e0
Patch
https://git.kernel.org/stable/c/70c886ac93f87ae7214a0c69151a28a8075dd95b
Patch
https://git.kernel.org/stable/c/9e6a3eccb28779710cbbafc4f4258d92509c6d07
Patch
https://git.kernel.org/stable/c/9e6b8c1ff9d997e1fa16cbd2d60739adf6dc1bbc
Patch
https://git.kernel.org/stable/c/b95fb96e6339e34694dd578fb6bde3575b01af17
Patch