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1f092caba7
Add comments and revert logic changes in 01_fallback_counting Remove quotes when reading ID value from /etc/os-release Related: rhbz#1650706 blscfg: expand grub_users before passing to grub_normal_add_menu_entry() Resolves: rhbz#1650706 Drop buggy downstream patch "efinet: retransmit if our device is busy" Resolves: rhbz#1649048 Make the menu entry users option argument to be optional Related: rhbz#1652434 10_linux_bls: add missing menu entries options Resolves: rhbz#1652434 Drop "Be more aggro about actually using the *configured* network device." Resolves: rhbz#1654388 Fix menu entry selection based on title Resolves: rhbz#1654936 Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
37 lines
1.2 KiB
Diff
37 lines
1.2 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Aaron Miller <aaronmiller@fb.com>
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Date: Fri, 29 Jul 2016 17:41:27 +0800
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Subject: [PATCH] misc: fix invalid character recongition in strto*l
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Would previously allow digits larger than the base and didn't check that
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subtracting the difference from 0-9 to lowercase letters for characters
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larger than 9 didn't result in a value lower than 9, which allowed the
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parses: ` = 9, _ = 8, ^ = 7, ] = 6, \ = 5, and [ = 4
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---
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grub-core/kern/misc.c | 13 ++++++++-----
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1 file changed, 8 insertions(+), 5 deletions(-)
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diff --git a/grub-core/kern/misc.c b/grub-core/kern/misc.c
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index 0e89c483d5e..5c3899f0e5b 100644
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--- a/grub-core/kern/misc.c
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+++ b/grub-core/kern/misc.c
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@@ -434,11 +434,14 @@ grub_strtoull (const char *str, char **end, int base)
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unsigned long digit;
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digit = grub_tolower (*str) - '0';
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- if (digit >= 'a' - '0')
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- digit += '0' - 'a' + 10;
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- else if (digit > 9)
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- break;
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-
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+ if (digit > 9)
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+ {
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+ digit += '0' - 'a' + 10;
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+ /* digit <= 9 check is needed to keep chars larger than
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+ '9' but less than 'a' from being read as numbers */
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+ if (digit >= (unsigned long) base || digit <= 9)
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+ break;
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+ }
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if (digit >= (unsigned long) base)
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break;
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