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CVE-2022-48699

sched/debug: fix dentry leak in update_sched_domain_debugfs PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
Linux / Linuxaffected 3b87f136f8fccddf7da016ab7d04bb3cf9b180f0 before 26e9a1ded8923510e5529fbb28390b22228700c2; affected 3b87f136f8fccddf7da016ab7d04bb3cf9b180f0 before 0c32a93963e03c03e561d5a066eedad211880ba3; affected 3b87f136f8fccddf7da016ab7d04bb3cf9b180f0 before c2e406596571659451f4b95e37ddfd5a8ef1d0dc
Linux / Linuxaffected 5.13; unaffected 0 before 5.13; unaffected 5.15.68 through 5.15.*; unaffected 5.19.9 through 5.19.*; unaffected 6.0 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

CVE

No English description supplied.