CVE-2024-49936

CVE-2024-49936, security advisory, suse linux, suse, security, cve

CVE-2024-49936

Common Vulnerabilities and Exposures

[Previous] [Index] [Next]

Upstream information

CVE-2024-49936 at MITRE

Description

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.

---

SUSE information

Overall state of this security issue: Does not affect SUSE products

SUSE Bugzilla entry: 1232424 [NEW]

No SUSE Security Announcements cross referenced.

---

SUSE Timeline for this CVE

CVE page created: Mon Oct 28 12:07:26 2024
CVE page last modified: Mon Oct 28 12:07:26 2024