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| author | Chengguang Xu <cgxu519@gmx.com> | 2018-06-13 07:05:13 +0300 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2018-10-18 09:04:59 +0300 |
| commit | 515f1867addaba49c1c6ac73abfaffbc192c1db4 (patch) | |
| tree | fbddee5d65ec3b1156b6e0343bfb4d164593b71f | |
| parent | 55338ac2a9839557516b00661e6a05daf996fda0 (diff) | |
| download | linux-515f1867addaba49c1c6ac73abfaffbc192c1db4.tar.xz | |
fs/exofs: fix potential memory leak in mount option parsing
There are some cases can cause memory leak when parsing
option 'osdname'.
Signed-off-by: Chengguang Xu <cgxu519@gmx.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| -rw-r--r-- | fs/exofs/super.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/exofs/super.c b/fs/exofs/super.c index 41cf2fbee50d..7d61e3fa378c 100644 --- a/fs/exofs/super.c +++ b/fs/exofs/super.c @@ -101,6 +101,7 @@ static int parse_options(char *options, struct exofs_mountopt *opts) token = match_token(p, tokens, args); switch (token) { case Opt_name: + kfree(opts->dev_name); opts->dev_name = match_strdup(&args[0]); if (unlikely(!opts->dev_name)) { EXOFS_ERR("Error allocating dev_name"); @@ -866,8 +867,10 @@ static struct dentry *exofs_mount(struct file_system_type *type, int ret; ret = parse_options(data, &opts); - if (ret) + if (ret) { + kfree(opts.dev_name); return ERR_PTR(ret); + } if (!opts.dev_name) opts.dev_name = dev_name; |