The vulnerability of the touch_pmd() function in Linux operating systems allows a hacker to gain access to confidential data, compromise its integrity, and cause service failures.

The vulnerability of the touchpmd function in Linux operating systems is related to the simultaneous execution using shared resources with incorrect synchronization. Exploiting this vulnerability can allow an attacker to access confidential data, compromise its integrity, and cause service failur...

CVE-2017-1000405: Concurrent Execution using Shared Resource with Improper Synchronization

The Linux Kernel versions 2.6.38 through 4.14 have a problematic use of pmdmkdirty in the touchpmd function inside the THP implementation. touchpmd can be reached by getuserpages. In such case, the pmd will become dirty. This scenario breaks the new canfollowwritepmd's logic - pmd can become dirt...