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8.8 High

CVE-2024-26598 In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic-its: Avoid potential UAF in LPI…

Description

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic-its: Avoid potential UAF in LPI translation cache There is a potential UAF scenario in the case of an LPI translation cache hit racing with an operation that invalidates the cache, such as a DISCARD ITS command. The root of the problem is that vgic_its_check_cache() does not elevate the refcount on the vgic_irq before dropping the lock that serializes refcount changes. Have vgic_its_check_cache() raise the refcount on the returned vgic_irq and add the corresponding decrement after queueing the interrupt.

Affected products and versions

Product Affected versions Fixed in
Linux 6.8 earliest → < 6.8 6.8
Linux 6.7 earliest → < 6.7.2 6.7.2
Linux 6.6 earliest → < 6.6.14 6.6.14
Linux 6.1 earliest → < 6.1.75 6.1.75
Linux 5.15 earliest → < 5.15.148 5.15.148
Linux 5.10 earliest → < 5.10.209 5.10.209
Linux 5.4 earliest → < 5.4.269 5.4.269
Linux 3.11 No fix stated
linux_kernel 6.8 earliest → < 6.8 6.8
Show the 7 other branches
Product Affected versions Fixed in
linux_kernel 6.7 earliest → < 6.7.2 6.7.2
linux_kernel 6.6 earliest → < 6.6.14 6.6.14
linux_kernel 6.1 earliest → < 6.1.75 6.1.75
linux_kernel 5.15 earliest → < 5.15.148 5.15.148
linux_kernel 5.10 earliest → < 5.10.209 5.10.209
linux_kernel 5.4 earliest → < 5.4.269 5.4.269
linux_kernel 1 1da177e4c3f4 → latest 12c2759ab134

References

Timeline

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