aboutsummaryrefslogtreecommitdiffstats
path: root/fs/jffs2
diff options
context:
space:
mode:
authorDavid Woodhouse <David.Woodhouse@intel.com>2009-12-15 22:27:20 -0500
committerDavid Woodhouse <David.Woodhouse@intel.com>2009-12-15 22:27:20 -0500
commit2e16cfca6e17ae37ae21feca080a6f2eca9087dc (patch)
tree6474bcbf5d7f79d359b07fd187093beb4b8b489d /fs/jffs2
parent0a032a4df6dc4a82bcd1c401e57ee71825d30c14 (diff)
jffs2: Fix long-standing bug with symlink garbage collection.
Ever since jffs2_garbage_collect_metadata() was first half-written in February 2001, it's been broken on architectures where 'char' is signed. When garbage collecting a symlink with target length above 127, the payload length would end up negative, causing interesting and bad things to happen. Cc: stable@kernel.org Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'fs/jffs2')
-rw-r--r--fs/jffs2/gc.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/jffs2/gc.c b/fs/jffs2/gc.c
index 090c556ffed2..3b6f2fa12cff 100644
--- a/fs/jffs2/gc.c
+++ b/fs/jffs2/gc.c
@@ -700,7 +700,8 @@ static int jffs2_garbage_collect_metadata(struct jffs2_sb_info *c, struct jffs2_
700 struct jffs2_raw_inode ri; 700 struct jffs2_raw_inode ri;
701 struct jffs2_node_frag *last_frag; 701 struct jffs2_node_frag *last_frag;
702 union jffs2_device_node dev; 702 union jffs2_device_node dev;
703 char *mdata = NULL, mdatalen = 0; 703 char *mdata = NULL;
704 int mdatalen = 0;
704 uint32_t alloclen, ilen; 705 uint32_t alloclen, ilen;
705 int ret; 706 int ret;
706 707