CVE-2022-48699

Description

In the Linux kernel, the following vulnerability has been resolved: sched/debug: fix dentry leak in update_sched_domain_debugfs Kuyo reports that the pattern of using debugfs_remove(debugfs_lookup()) leaks a dentry and with a hotplug stress test, the machine eventually runs out of memory. Fix this up by using the newly created debugfs_lookup_and_remove() call instead which properly handles the dentry reference counting logic.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

References

• https://git.kernel.org/stable/c/26e9a1ded8923510e5529fbb28390b22228700c2 ↗
• https://git.kernel.org/stable/c/0c32a93963e03c03e561d5a066eedad211880ba3 ↗
• https://git.kernel.org/stable/c/c2e406596571659451f4b95e37ddfd5a8ef1d0dc ↗