Colin Ian King 8b44f00f8c x86/RAS/mce_amd_inj: Fix signed wrap around when decrementing index 'i' ... Change predecrement compare to post decrement compare to avoid an unsigned integer wrap-around comparisomn when decrementing in the while loop. For example, if the debugfs_create_file() fails when 'i' is zero, the current situation will predecrement 'i' in the while loop, wrapping 'i' to the maximum signed integer and cause multiple out of bounds reads on dfs_fls[i].d as the loop interates to zero. Also, as Borislav Petkov suggested, return -ENODEV rather than -ENOMEM on the error condition. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Borislav Petkov <bp@suse.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Yazen Ghannam <Yazen.Ghannam@amd.com> Link: http://lkml.kernel.org/r/20160926083152.30848-2-bp@alien8.de Signed-off-by: Ingo Molnar <mingo@kernel.org>		2016-09-26 11:13:17 +02:00
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Kconfig	x86/RAS: Rename AMD MCE injector config item	2016-04-13 10:54:23 +02:00
Makefile	x86/RAS: Rename AMD MCE injector config item	2016-04-13 10:54:23 +02:00
mce_amd_inj.c	x86/RAS/mce_amd_inj: Fix signed wrap around when decrementing index 'i'	2016-09-26 11:13:17 +02:00