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| author | Tim Ruehsen <tim.ruehsen@gmx.de> | 2019-12-06 22:20:06 +0000 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 2019-12-06 15:20:06 -0700 |
| commit | 1cd4fe3d4302f0db3dd38c720c69f0c51137ff13 (patch) | |
| tree | d2af2546bc2fe82d48c1104cef672f76d02bee40 /libiberty/make-relative-prefix.c | |
| parent | 070455950d3234009059b252d9b5f393682d20c6 (diff) | |
| download | gcc-1cd4fe3d4302f0db3dd38c720c69f0c51137ff13.zip gcc-1cd4fe3d4302f0db3dd38c720c69f0c51137ff13.tar.gz gcc-1cd4fe3d4302f0db3dd38c720c69f0c51137ff13.tar.bz2 | |
Fix read buffer overflow in split_directories
* make-relative-prefix.c (split_directories):
Return early on empty 'name'
From-SVN: r279068
Diffstat (limited to 'libiberty/make-relative-prefix.c')
| -rw-r--r-- | libiberty/make-relative-prefix.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libiberty/make-relative-prefix.c b/libiberty/make-relative-prefix.c index ec0b0ee..2ff2af8a 100644 --- a/libiberty/make-relative-prefix.c +++ b/libiberty/make-relative-prefix.c @@ -122,6 +122,9 @@ split_directories (const char *name, int *ptr_num_dirs) const char *p, *q; int ch; + if (!*name) + return NULL; + /* Count the number of directories. Special case MSDOS disk names as part of the initial directory. */ p = name; |