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SUSE:SLE-15-SP1:GA
grub2.13272
0001-misc-fix-invalid-character-recongition-in-...
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File 0001-misc-fix-invalid-character-recongition-in-strto-l.patch of Package grub2.13272
From 0155e49166494624e9fb6ef113ed2c16d4accbb3 Mon Sep 17 00:00:00 2001 From: Michael Chang <mchang@suse.com> Date: Fri, 29 Jul 2016 17:41:27 +0800 Subject: [PATCH 1/8] misc: fix invalid character recongition in strto*l From: Aaron Miller <aaronmiller@fb.com> Would previously allow digits larger than the base and didn't check that subtracting the difference from 0-9 to lowercase letters for characters larger than 9 didn't result in a value lower than 9, which allowed the parses: ` = 9, _ = 8, ^ = 7, ] = 6, \ = 5, and [ = 4 --- grub-core/kern/misc.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/grub-core/kern/misc.c b/grub-core/kern/misc.c index d1a54df..3a14d67 100644 --- a/grub-core/kern/misc.c +++ b/grub-core/kern/misc.c @@ -394,9 +394,13 @@ grub_strtoull (const char *str, char **end, int base) if (digit > 9) { digit += '0' - 'a' + 10; - if (digit >= (unsigned long) base) + /* digit <= 9 check is needed to keep chars larger than + '9' but less than 'a' from being read as numbers */ + if (digit >= (unsigned long) base || digit <= 9) break; } + if (digit >= (unsigned long) base) + break; found = 1; -- 2.6.6
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