CVE-2019-8912 – In the Linux kernel through 4.20.11, af_alg_release() in crypto/af_alg.c

In the Linux kernel through 4.20.11, af_alg_release() in crypto/af_alg.c neglects to set a NULL value for a certain structure member, which leads to a use-after-free in sockfs_setattr.

 

Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8912

Reference (s):

• BID:107063
• URL: http://www.securityfocus.com/bid/107063
• http://patchwork.ozlabs.org/patch/1042902/
• REDHAT:RHSA-2020:0174
• URL: https://access.redhat.com/errata/RHSA-2020:0174