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Test your applicationsThere is no fixed version for Centos:6
kernel-kdump
.
Note: Versions mentioned in the description apply only to the upstream kernel-kdump
package and not the kernel-kdump
package as distributed by Centos
.
See How to fix?
for Centos:6
relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
fs/fhandle.c: fix a race in call of has_locked_children()
may_decode_fh() is calling has_locked_children() while holding no locks. That's an oopsable race...
The rest of the callers are safe since they are holding namespace_sem and are guaranteed a positive refcount on the mount in question.
Rename the current has_locked_children() to __has_locked_children(), make it static and switch the fs/namespace.c users to it.
Make has_locked_children() a wrapper for __has_locked_children(), calling the latter under read_seqlock_excl(&mount_lock).