cve/2024/CVE-2024-38385.md

### [CVE-2024-38385](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-38385)
![](https://img.shields.io/static/v1?label=Product&message=Linux&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=6.5%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=721255b9826bd11c7a38b585905fc2dd0fb94e52%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=blue)

### Description

In the Linux kernel, the following vulnerability has been resolved:genirq/irqdesc: Prevent use-after-free in irq_find_at_or_after()irq_find_at_or_after() dereferences the interrupt descriptor which isreturned by mt_find() while neither holding sparse_irq_lock nor RCU readlock, which means the descriptor can be freed between mt_find() and thedereference:    CPU0                            CPU1    desc = mt_find()                                    delayed_free_desc(desc)    irq_desc_get_irq(desc)The use-after-free is reported by KASAN:    Call trace:     irq_get_next_irq+0x58/0x84     show_stat+0x638/0x824     seq_read_iter+0x158/0x4ec     proc_reg_read_iter+0x94/0x12c     vfs_read+0x1e0/0x2c8    Freed by task 4471:     slab_free_freelist_hook+0x174/0x1e0     __kmem_cache_free+0xa4/0x1dc     kfree+0x64/0x128     irq_kobj_release+0x28/0x3c     kobject_put+0xcc/0x1e0     delayed_free_desc+0x14/0x2c     rcu_do_batch+0x214/0x720Guard the access with a RCU read lock section.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/fkie-cad/nvd-json-data-feeds