CVE ID:	CVE-2024-26618
Description:	In the Linux kernel, the following vulnerability has been resolved: arm64/sme: Always exit sme_alloc() early with existing storage When sme_alloc() is called with existing storage and we are not flushing we will always allocate new storage, both leaking the existing storage and corrupting the state. Fix this by separating the checks for flushing and for existing storage as we do for SVE. Callers that reallocate (eg, due to changing the vector length) should call sme_free() themselves.
Test IDs:	None available
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2024-26618 https://git.kernel.org/stable/c/569156e4fa347237f8fa2a7e935d860109c55ac4 https://git.kernel.org/stable/c/569156e4fa347237f8fa2a7e935d860109c55ac4 https://git.kernel.org/stable/c/814af6b4e6000e574e74d92197190edf07cc3680 https://git.kernel.org/stable/c/814af6b4e6000e574e74d92197190edf07cc3680 https://git.kernel.org/stable/c/dc7eb8755797ed41a0d1b5c0c39df3c8f401b3d9 https://git.kernel.org/stable/c/dc7eb8755797ed41a0d1b5c0c39df3c8f401b3d9