7.8

CVE-2022-50245

rapidio: fix possible UAF when kfifo_alloc() fails

In the Linux kernel, the following vulnerability has been resolved:

rapidio: fix possible UAF when kfifo_alloc() fails

If kfifo_alloc() fails in mport_cdev_open(), goto err_fifo and just free
priv. But priv is still in the chdev->file_list, then list traversal
may cause UAF. This fixes the following smatch warning:

drivers/rapidio/devices/rio_mport_cdev.c:1930 mport_cdev_open() warn: '&priv->list' not removed from list
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 4.6 < 4.9.337
Linux ≫ Linux Kernel Version >= 4.10 < 4.14.303
Linux ≫ Linux Kernel Version >= 4.15 < 4.19.270
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.229
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.163
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.86
Linux ≫ Linux Kernel Version >= 5.16 < 6.0.16
Linux ≫ Linux Kernel Version >= 6.1 < 6.1.2
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.16% 0.051
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

https://git.kernel.org/stable/c/2a6c75adf8192f07ddcdd4a1a13488c890a73919
Patch
https://git.kernel.org/stable/c/2dfd60724d271a6ab99f93f40f38f2ced1ddbb87
Patch
https://git.kernel.org/stable/c/a253dde0403a153075ffb254f6f7b2635e49e97a
Patch
https://git.kernel.org/stable/c/311b488405ac45af46756b1c8f1d27007b68b07e
Patch
https://git.kernel.org/stable/c/5ee850645e42f541ce1ea8130c2b27cc495f965c
Patch
https://git.kernel.org/stable/c/2f5cc7fd73fd6253cc71214f0dd499cc62feb469
Patch
https://git.kernel.org/stable/c/2ba06e57f933f0eac242e8b389433da1cc00d4d5
Patch
https://git.kernel.org/stable/c/cb87af2c19c0993f6e21f75b963a5599c5a73e76
Patch
https://git.kernel.org/stable/c/02d7d89f816951e0862147d751b1150d67aaebdd
Patch