CVE-2024-27049: wifi: mt76: mt7925e: fix use-after-free in free_irq()
In the Linux kernel, the following vulnerability has been resolved:
wifi: mt76: mt7925e: fix use-after-free in freeirq()
From commit a304e1b82808 ("[PATCH] Debug shared irqs"), there is a test to make sure the shared irq handler should be able to handle the unexpected event after deregistration. For this case, let's apply MT76REMOVED flag to indicate the device was removed and do not run into the resource access anymore.
Other sources
In the Linux kernel, the following vulnerability has been resolved:
wifi: mt76: mt7925e: fix use-after-free in freeirq()
The Linux kernel CVE team has assigned CVE-2024-27049 to this issue.
Upstream advisory: https://lore.kernel.org/linux-cve-announce/2024050114-CVE-2024-27049-a5a1@gregkh/T
— Red Hat
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2024-27049?
CVE-2024-27049 has a high severity rating due to the potential for a use-after-free condition in the Linux kernel.
How do I fix CVE-2024-27049?
To fix CVE-2024-27049, upgrade the Linux kernel to version 6.7.11, 6.8.2, 6.9, or the specified patched versions provided by your distribution.
What causes CVE-2024-27049?
CVE-2024-27049 is caused by a use-after-free vulnerability related to the consistent handling of shared IRQs in the mt76 driver for Linux.
Which systems are affected by CVE-2024-27049?
CVE-2024-27049 affects various versions of the Linux kernel, including those not upgraded to the patched versions mentioned in the advisory.
Is CVE-2024-27049 actively exploited in the wild?
As of now, there is no public information available indicating that CVE-2024-27049 is actively being exploited in the wild.