Description
In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Tear down vGIC on failed vCPU creation If kvm_arch_vcpu_create() fails to share the vCPU page with the hypervisor, we propagate the error back to the ioctl but leave the vGIC vCPU data initialised. Note only does this leak the corresponding memory when the vCPU is destroyed but it can also lead to use-after-free if the redistributor device handling tries to walk into the vCPU. Add the missing cleanup to kvm_arch_vcpu_create(), ensuring that the vGIC vCPU structures are destroyed on error.
Product status
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before 07476e0d932afc53c05468076393ac35d0b4999e
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before 5085e02362b9948f82fceca979b8f8e12acb1cc5
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before c322789613407647a05ff5c451a7bf545fb34e73
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before 2480326eba8ae9ccc5e4c3c2dc8d407db68e3c52
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before f1e9087abaeedec9bf2894a282ee4f0d8383f299
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before 250f25367b58d8c65a1b060a2dda037eea09a672
6.1.135 (semver)
6.6.88 (semver)
6.12.24 (semver)
6.13.12 (semver)
6.14.3 (semver)
6.15 (original_commit_for_fix)
References
lists.debian.org/debian-lts-announce/2025/05/msg00045.html
git.kernel.org/...c/07476e0d932afc53c05468076393ac35d0b4999e
git.kernel.org/...c/5085e02362b9948f82fceca979b8f8e12acb1cc5
git.kernel.org/...c/c322789613407647a05ff5c451a7bf545fb34e73
git.kernel.org/...c/2480326eba8ae9ccc5e4c3c2dc8d407db68e3c52
git.kernel.org/...c/f1e9087abaeedec9bf2894a282ee4f0d8383f299
git.kernel.org/...c/250f25367b58d8c65a1b060a2dda037eea09a672
