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| author | Fabian Frederick <fabf@skynet.be> | 2015-04-08 21:23:51 +0200 |
|---|---|---|
| committer | Jan Kara <jack@suse.cz> | 2015-05-18 11:23:03 +0200 |
| commit | 5ceb8b554dcaaf6844415cd2616ce2e0132530fa (patch) | |
| tree | c80877de890e6f3ab8d47aae705d39401031efb8 /fs/udf/symlink.c | |
| parent | c0655fe9b0901a968800f56687be3c62b4cce5d2 (diff) | |
| download | linux-5ceb8b554dcaaf6844415cd2616ce2e0132530fa.tar.gz linux-5ceb8b554dcaaf6844415cd2616ce2e0132530fa.tar.bz2 linux-5ceb8b554dcaaf6844415cd2616ce2e0132530fa.zip | |
udf: Return -ENOMEM when allocation fails in udf_get_filename()
Return -ENOMEM when allocation fails in udf_get_filename(). Update
udf_pc_to_char(), udf_readdir(), and udf_find_entry() to handle the
error appropriately. This allows us to pass appropriate error to
userspace instead of corrupting symlink contents by omitting some path
elements.
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs/udf/symlink.c')
| -rw-r--r-- | fs/udf/symlink.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/udf/symlink.c b/fs/udf/symlink.c index 8dfbc4025e2f..862535b3ba58 100644 --- a/fs/udf/symlink.c +++ b/fs/udf/symlink.c @@ -82,6 +82,9 @@ static int udf_pc_to_char(struct super_block *sb, unsigned char *from, comp_len = udf_get_filename(sb, pc->componentIdent, pc->lengthComponentIdent, p, tolen); + if (comp_len < 0) + return comp_len; + p += comp_len; tolen -= comp_len; if (tolen == 0) |