Re: [PATCH v7 02/14] KVM: s390: Do not free SCA if it was not allocated
| Newsgroups | org.kernel.vger.kvm,org.kernel.vger.linux-s390 |
|---|---|
| Message-ID | <[email protected]> |
> If VM creation fails early in kvm_arch_init_vm(), the cleanup code
> tries to free up the SCA, even though the address is 0. Due to using
> free_pages_exact(), only the first page is skipped, accidentally
> freeing pages 1, 2, and 3.
>
> Fix by checking whether the pointer is NULL before attempting to free
> the SCA in sca_dispose().
>
> Fixes: e72753ed1267 ("KVM: s390: Use ESCA instead of BSCA at VM init")
> Signed-off-by: Claudio Imbrenda <[email protected]>
Sashiko has reviewed this patch and found no issues. It looks great!
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Sashiko AI review · https://sashiko.dev/#/patchset/[email protected]?part=2