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Test your applicationsUpgrade RHEL:9
kernel-devel-matched
to version 0:5.14.0-284.67.1.el9_2 or higher.
This issue was patched in RHSA-2024:3461
.
Note: Versions mentioned in the description apply only to the upstream kernel-devel-matched
package and not the kernel-devel-matched
package as distributed by RHEL
.
See How to fix?
for RHEL:9
relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
fs: sysfs: Fix reference leak in sysfs_break_active_protection()
The sysfs_break_active_protection() routine has an obvious reference leak in its error path. If the call to kernfs_find_and_get() fails then kn will be NULL, so the companion sysfs_unbreak_active_protection() routine won't get called (and would only cause an access violation by trying to dereference kn->parent if it was called). As a result, the reference to kobj acquired at the start of the function will never be released.
Fix the leak by adding an explicit kobject_put() call when kn is NULL.