CVE-2023-52672

In the Linux kernel, the following vulnerability has been resolved: pipe: wakeup wrwait after setting maxusage Commit c73be61cede5 "pipe: Add general notification queue support" a regression was introduced that would lock up resized pipes under certain conditions. See the reproducer in 1. The...

kernel: watch queue race condition can lead to privilege escalation

A race condition was found in the Linux kernel's watch queue due to a missing lock in the piperesizering. The race condition occurs when a thread uses ioctlIOCWATCHQUEUESETSIZE to resize the pipe buffer and free the old pipe buffer, while another thread uses keyctl to trigger a notification in th...