Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 40d8abdee806d496a60ee607a6d01b1cd7fabaf0 before 3c4423b0c4b98213b3438e15061e1d08220e6982; affected 40d8abdee806d496a60ee607a6d01b1cd7fabaf0 before a7f0073fcd12ed7de185ef2c0af9d0fa1ddef22c; affected 40d8abdee806d496a60ee607a6d01b1cd7fabaf0 before a0465723b8581cad27164c9073fd780904cd22d4; affected 40d8abdee806d496a60ee607a6d01b1cd7fabaf0 before efcff6ce7467f01f0753609f420333f3f2ceceda; affected 40d8abdee806d496a60ee607a6d01b1cd7fabaf0 before 143edf098b80669d05245b2f2367dd156a83a2c5; affected 40d8abdee806d496a60ee607a6d01b1cd7fabaf0 before d408889d4b54f5501e4becc4dbbb9065143fbf4e; affected 40d8abdee806d496a60ee607a6d01b1cd7fabaf0 before 54d8639af5568fc41c0e274fc3ec9cf86c59fcbb; affected 40d8abdee806d496a60ee607a6d01b1cd7fabaf0 before 0fa5e94a1811d68fbffa0725efe6d4ca62c03d12 |
| Linux / Linux | affected 4.7; unaffected 0 before 4.7; unaffected 5.4.290 through 5.4.*; unaffected 5.10.227 through 5.10.*; unaffected 5.15.168 through 5.15.*; unaffected 6.1.113 through 6.1.*; unaffected 6.6.55 through 6.6.*; unaffected 6.10.14 through 6.10.*; unaffected 6.11.3 through 6.11.*; unaffected 6.12 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/3c4423b0c4b98213b3438e15061e1d08220e6982
- https://git.kernel.org/stable/c/a7f0073fcd12ed7de185ef2c0af9d0fa1ddef22c
- https://git.kernel.org/stable/c/a0465723b8581cad27164c9073fd780904cd22d4
- https://git.kernel.org/stable/c/efcff6ce7467f01f0753609f420333f3f2ceceda
- https://git.kernel.org/stable/c/143edf098b80669d05245b2f2367dd156a83a2c5
- https://git.kernel.org/stable/c/d408889d4b54f5501e4becc4dbbb9065143fbf4e
- https://git.kernel.org/stable/c/54d8639af5568fc41c0e274fc3ec9cf86c59fcbb
- https://git.kernel.org/stable/c/0fa5e94a1811d68fbffa0725efe6d4ca62c03d12
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.