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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