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Nikita Zhandarovich authored
cmdline_find_option() may fail before doing any initialization of the buffer array. This may lead to unpredictable results when the same buffer is used later in calls to strncmp() function. Fix the issue by returning early if cmdline_find_option() returns an error. Found by Linux Verification Center (linuxtesting.org) with static analysis tool SVACE. Fixes: aca20d54 ("x86/mm: Add support to make use of Secure Memory Encryption") Signed-off-by:
Nikita Zhandarovich <n.zhandarovich@fintech.ru> Signed-off-by:
Borislav Petkov (AMD) <bp@alien8.de> Acked-by:
Tom Lendacky <thomas.lendacky@amd.com> Cc: <stable@kernel.org> Link: https://lore.kernel.org/r/20230306160656.14844-1-n.zhandarovich@fintech.ru
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