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Update buildroot to 2021.02.1 (#1312)

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Signed-off-by: Stefan Agner <stefan@agner.ch>
This commit is contained in:
Stefan Agner
2021-04-08 15:51:24 +02:00
committed by GitHub
parent 40a705bbd3
commit aff28ce60e
411 changed files with 28197 additions and 879 deletions
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77
buildroot/boot/grub2/0127-kern-parser-Fix-a-memory-leak.patch Normal file
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@@ -0,0 +1,77 @@
From c6c426e5ab6ea715153b72584de6bd8c82f698ec Mon Sep 17 00:00:00 2001
From: Chris Coulson <chris.coulson@canonical.com>
Date: Wed, 18 Nov 2020 00:59:24 +0000
Subject: [PATCH] kern/parser: Fix a memory leak
The getline() function supplied to grub_parser_split_cmdline() returns
a newly allocated buffer and can be called multiple times, but the
returned buffer is never freed.
Signed-off-by: Chris Coulson <chris.coulson@canonical.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Signed-off-by: Stefan Sørensen <stefan.sorensen@spectralink.com>
---
grub-core/kern/parser.c | 20 ++++++++++++++++----
1 file changed, 16 insertions(+), 4 deletions(-)
diff --git a/grub-core/kern/parser.c b/grub-core/kern/parser.c
index d1cf061..39e4df6 100644
--- a/grub-core/kern/parser.c
+++ b/grub-core/kern/parser.c
@@ -140,6 +140,7 @@ grub_parser_split_cmdline (const char *cmdline,
char buffer[1024];
char *bp = buffer;
char *rd = (char *) cmdline;
+ char *rp = rd;
char varname[200];
char *vp = varname;
char *args;
@@ -149,10 +150,18 @@ grub_parser_split_cmdline (const char *cmdline,
*argv = NULL;
do
{
- if (!rd || !*rd)
+ if (rp == NULL || *rp == '\0')
{
+ if (rd != cmdline)
+ {
+ grub_free (rd);
+ rd = rp = NULL;
+ }
if (getline)
- getline (&rd, 1, getline_data);
+ {
+ getline (&rd, 1, getline_data);
+ rp = rd;
+ }
else
break;
}
@@ -160,12 +169,12 @@ grub_parser_split_cmdline (const char *cmdline,
if (!rd)
break;
- for (; *rd; rd++)
+ for (; *rp != '\0'; rp++)
{
grub_parser_state_t newstate;
char use;
- newstate = grub_parser_cmdline_state (state, *rd, &use);
+ newstate = grub_parser_cmdline_state (state, *rp, &use);
/* If a variable was being processed and this character does
not describe the variable anymore, write the variable to
@@ -198,6 +207,9 @@ grub_parser_split_cmdline (const char *cmdline,
}
while (state != GRUB_PARSER_STATE_TEXT && !check_varstate (state));
+ if (rd != cmdline)
+ grub_free (rd);
+
/* A special case for when the last character was part of a
variable. */
add_var (varname, &bp, &vp, state, GRUB_PARSER_STATE_TEXT);
--
2.14.2