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* Urgency high for etch-targetted bugfix.

Browse Source 
* New patch, 20_glibtop_get_proc_map-stack-overflow, fixes a stack overflow
  in get_proc_map-stack(); from upstream SVN r2546; thanks Benoît Dejean.
This commit is contained in:
Loïc Minier
2007-01-14 20:28:37 +00:00
parent ca9bbcb1a8
commit 06442f1711
2 changed files with 113 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
debian/changelog vendored
View File

@@ -1,8 +1,11 @@
libgtop2 (2.14.4-3) UNRELEASED; urgency=low libgtop2 (2.14.4-3) unstable; urgency=high
* Urgency high for etch-targetted bugfix.
* Add a get-orig-source target to retrieve the upstream tarball. * Add a get-orig-source target to retrieve the upstream tarball.
* New patch, 20_glibtop_get_proc_map-stack-overflow, fixes a stack overflow
in get_proc_map-stack(); from upstream SVN r2546; thanks Benoît Dejean.
-- Loic Minier <lool@dooz.org> Sat, 13 Jan 2007 23:33:24 +0100 -- Loic Minier <lool@dooz.org> Sun, 14 Jan 2007 21:18:52 +0100
libgtop2 (2.14.4-2) unstable; urgency=low libgtop2 (2.14.4-2) unstable; urgency=low

108
debian/patches/20_glibtop_get_proc_map-stack-overflow.patch vendored Normal file
View File

@@ -0,0 +1,108 @@
Index: sysdeps/linux/procmap.c
===================================================================
--- sysdeps/linux/procmap.c (révision 2545)
+++ sysdeps/linux/procmap.c (révision 2546)
@@ -38,7 +38,7 @@
#define SMAPS_FILE "/proc/%u/smaps"
-#define PROC_MAPS_FORMAT "%16llx-%16llx %4c %16llx %02hx:%02hx %llu%*[ ]%[^\n]\n"
+#define PROC_MAPS_FORMAT "%16llx-%16llx %4c %16llx %02hx:%02hx %llu%*[ ]%n"
static const unsigned long _glibtop_sysdeps_proc_map =
@@ -132,6 +132,8 @@
FILE *maps;
const char *filename;
gboolean has_smaps;
+ char *line = NULL;
+ size_t line_size = 0;
glibtop_init_s (&server, GLIBTOP_SYSDEPS_PROC_MAP, 0);
@@ -152,33 +154,29 @@
while(TRUE)
{
- char line[1024];
-
unsigned long perm = 0;
- int rv;
guint len;
+ int line_end;
unsigned short dev_major, dev_minor;
guint64 start, end, offset, inode;
char flags[4];
- char filename [GLIBTOP_MAP_FILENAME_LEN+1];
+ char *filename;
glibtop_map_entry *entry;
- if (!fgets(line, sizeof line, maps))
+ if (getline(&line, &line_size, maps) == -1)
break;
/* 8 arguments */
- rv = sscanf(line, PROC_MAPS_FORMAT,
- &start, &end, flags, &offset,
- &dev_major, &dev_minor, &inode, filename);
+ if (sscanf(line, PROC_MAPS_FORMAT,
+ &start, &end, flags, &offset,
+ &dev_major, &dev_minor, &inode, &line_end) != 7)
+ break;
- if(rv == EOF || rv < 7)
- break;
+ filename = line + line_end;
+ g_strstrip(filename);
- if(rv == 7) /* no filename */
- filename[0] = '\0';
-
/* Compute access permissions. */
if (flags [0] == 'r')
@@ -217,6 +215,7 @@
}
+ free(line);
fclose (maps);
buf->flags = _glibtop_sysdeps_proc_map;
Index: sysdeps/linux/procopenfiles.c
===================================================================
--- sysdeps/linux/procopenfiles.c (révision 2545)
+++ sysdeps/linux/procopenfiles.c (révision 2546)
@@ -58,7 +58,8 @@
parse_file(const char *filename, LineParser parser, GHashTable *dict)
{
FILE *f;
- char line[1024];
+ char *line = NULL;
+ size_t size = 0;
f = fopen(filename, "r");
@@ -67,15 +68,16 @@
return;
}
+
/* skip the first line */
- if(!fgets(line, sizeof line, f)) goto eof;
+ if (getline(&line, &size, f) == -1)
+ goto eof;
- while(fgets(line, sizeof line, f))
- {
+ while (getline(&line, &size, f) != -1)
parser(dict, line);
- }
eof:
+ free(line);
fclose(f);
}