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| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-12-15 23:56:43 +0900 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-12-15 23:56:43 +0900 |
| commit | 326b06a8a9b09d6d9a276fd550b6b6bb138e9a47 (patch) | |
| tree | b9bdcb0bd635b91258cec09c981af2c5dcc0f683 /fs/namei.c | |
| parent | 92b2e81d6f95bcee386abac4c4389f5b950f7bb9 (diff) | |
| parent | 9bffb1fb7c22c96d51d4ba06e2e023dd568a5872 (diff) | |
Merge remote-tracking branch 'asoc/topic/core' into asoc-next
Diffstat (limited to 'fs/namei.c')
| -rw-r--r-- | fs/namei.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/namei.c b/fs/namei.c index 937f9d50c84..5f4cdf3ad91 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -2131,6 +2131,11 @@ struct dentry *lookup_one_len(const char *name, struct dentry *base, int len) if (!len) return ERR_PTR(-EACCES); + if (unlikely(name[0] == '.')) { + if (len < 2 || (len == 2 && name[1] == '.')) + return ERR_PTR(-EACCES); + } + while (len--) { c = *(const unsigned char *)name++; if (c == '/' || c == '\0') |