First published: Mon Oct 21 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: net/xen-netback: prevent UAF in xenvif_flush_hash() During the list_for_each_entry_rcu iteration call of xenvif_flush_hash, kfree_rcu does not exist inside the rcu read critical section, so if kfree_rcu is called when the rcu grace period ends during the iteration, UAF occurs when accessing head->next after the entry becomes free. Therefore, to solve this, you need to change it to list_for_each_entry_safe.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Software | Affected Version | How to fix |
---|---|---|
Linux Linux kernel | <5.10.227 | |
Linux Linux kernel | >=5.11<5.15.168 | |
Linux Linux kernel | >=5.16<6.1.113 | |
Linux Linux kernel | >=6.2<6.6.55 | |
Linux Linux kernel | >=6.7<6.10.14 | |
Linux Linux kernel | >=6.11<6.11.3 | |
debian/linux | <=5.10.223-1<=5.10.226-1 | 6.1.115-1 6.1.119-1 6.12.5-1 6.12.6-1 |
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.