commit d0e9ea471e2ce27cbb04b78cacaad81055468df1
Author: Oswald Buddenhagen <[email protected]>
Date: Thu Sep 25 13:53:49 2025 +0200
fix crash in mkdir_p() with invalid path
if the user specified Inbox as a non-existing path in a directory they
can't write to, we'd hit the root and crash due to a null pointer deref.
REFMAIL: CAEJTn2UzcnD_p=ogAcaci8Pecb8pDk=2qi6p0jx1pua-hkv...@mail.gmail.com
src/util.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/src/util.c b/src/util.c
index 121ab0a..c110188 100644
--- a/src/util.c
+++ b/src/util.c
@@ -796,6 +796,8 @@ mkdir_p( char *path, int len )
if (!mkdir( path, 0700 ) || errno == EEXIST)
return 0;
char *p = memrchr( path, '/', (size_t)len );
+ if (!p)
+ return -1; // mkdir() already set errno
*p = 0;
if (mkdir_p( path, (int)(p - path) )) {
*p = '/';
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