ec4acbbd98
- Try to fix things for new compiler madness. I really don't know why gcc decided __attribute__((packed)) on a "typedef struct" should imply __attribute__((align (1))) and that it should have a warning that it does so. The obvious behavior would be to keep the alignment of the first element unless it's used in another object or type that /also/ hask the packed attribute. Why should it change the default alignment at all? - Merge in the BLS patches Javier and I wrote. - Attempt to fix pmtimer initialization failures to not be super duper slow. Signed-off-by: Peter Jones <pjones@redhat.com>
48 lines
1.3 KiB
Diff
48 lines
1.3 KiB
Diff
From 4ebcd25c8f7860c83a99cc420f63611437acf9f1 Mon Sep 17 00:00:00 2001
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From: Hector Marco-Gisbert <hecmargi@upv.es>
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Date: Fri, 13 Nov 2015 16:21:09 +0100
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Subject: [PATCH 137/206] Fix security issue when reading username and password
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This patch fixes two integer underflows at:
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* grub-core/lib/crypto.c
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* grub-core/normal/auth.c
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Resolves: CVE-2015-8370
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Signed-off-by: Hector Marco-Gisbert <hecmargi@upv.es>
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Signed-off-by: Ismael Ripoll-Ripoll <iripoll@disca.upv.es>
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---
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grub-core/lib/crypto.c | 2 +-
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grub-core/normal/auth.c | 2 +-
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2 files changed, 2 insertions(+), 2 deletions(-)
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diff --git a/grub-core/lib/crypto.c b/grub-core/lib/crypto.c
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index ca334d5a40e..e6c78d16d39 100644
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--- a/grub-core/lib/crypto.c
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+++ b/grub-core/lib/crypto.c
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@@ -468,7 +468,7 @@ grub_password_get (char buf[], unsigned buf_size)
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break;
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}
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- if (key == '\b')
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+ if (key == '\b' && cur_len)
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{
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if (cur_len)
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cur_len--;
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diff --git a/grub-core/normal/auth.c b/grub-core/normal/auth.c
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index 6be678c0de1..c35ce972473 100644
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--- a/grub-core/normal/auth.c
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+++ b/grub-core/normal/auth.c
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@@ -172,7 +172,7 @@ grub_username_get (char buf[], unsigned buf_size)
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break;
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}
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- if (key == GRUB_TERM_BACKSPACE)
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+ if (key == GRUB_TERM_BACKSPACE && cur_len)
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{
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if (cur_len)
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{
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--
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2.15.0
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