CVE-2024-57949 irqchip/gic-v3-its: Don't enable interrupts in its_irq_set_vcpu_affinity()

What is CVE-2024-57949?

CVE-2024-57949 is a medium-severity vulnerability in Linux kernel, published on 9 Feb 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In the Linux kernel, the following vulnerability has been resolved:

irqchip/gic-v3-its: Don't enable interrupts in its_irq_set_vcpu_affinity()

The following call-chain leads to enabling interrupts in a nested interrupt disabled section:

irq_set_vcpu_affinity() irq_get_desc_lock() raw_spin_lock_irqsave() <--- Disable interrupts its_irq_set_vcpu_affinity() guard(raw_spinlock_irq) <--- Enables interrupts when leaving the guard() irq_put_desc_unlock() <--- Warns because interrupts are enabled

This was broken in commit b97e8a2f7130, which replaced the original raw_spin_[un]lock() pair with guard(raw_spinlock_irq).

Fix the issue by using guard(raw_spinlock).

[ tglx: Massaged change log ]

Weakness: CWE-667

Which versions are affected by CVE-2024-57949?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-57949?

Apply the vendor's patch.

Is CVE-2024-57949 being exploited?

There is no known exploitation of CVE-2024-57949 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as AZL-56553, BELL-CVE-2024-57949, DEBIAN-CVE-2024-57949, GHSA-94mc-r26h-rwj7, UBUNTU-CVE-2024-57949.