path: root/main/musl/0010-fix-read-past-end-of-haystack-buffer-for-short-needl.patch
diff options
Diffstat (limited to 'main/musl/0010-fix-read-past-end-of-haystack-buffer-for-short-needl.patch')
1 files changed, 0 insertions, 36 deletions
diff --git a/main/musl/0010-fix-read-past-end-of-haystack-buffer-for-short-needl.patch b/main/musl/0010-fix-read-past-end-of-haystack-buffer-for-short-needl.patch
deleted file mode 100644
index 35c7276d0f..0000000000
--- a/main/musl/0010-fix-read-past-end-of-haystack-buffer-for-short-needl.patch
+++ /dev/null
@@ -1,36 +0,0 @@
-From c718f9fc1b4bd913eff10d0c12763f90b2bc487c Mon Sep 17 00:00:00 2001
-From: Rich Felker <dalias@aerifal.cx>
-Date: Fri, 1 Apr 2016 13:36:15 -0400
-Subject: [PATCH] fix read past end of haystack buffer for short needles in
- memmem
-the two/three/four byte memmem specializations are not prepared to
-handle haystacks shorter than the needle; they unconditionally read at
-least up to the needle length and subtract from the haystack length.
-if the haystack is shorter, the remaining haystack length underflows
-and produces an unbounded search which will eventually either crash or
-find a spurious match.
-the top-level memmem function attempted to avoid this case already by
-checking for haystack shorter than needle, but it failed to re-check
-after using memchr to remove the maximal prefix not containing the
-first byte of the needle.
- src/string/memmem.c | 1 +
- 1 file changed, 1 insertion(+)
-diff --git a/src/string/memmem.c b/src/string/memmem.c
-index d7e1221..4be6a31 100644
---- a/src/string/memmem.c
-+++ b/src/string/memmem.c
-@@ -140,6 +140,7 @@ void *memmem(const void *h0, size_t k, const void *n0, size_t l)
- h = memchr(h0, *n, k);
- if (!h || l==1) return (void *)h;
- k -= h - (const unsigned char *)h0;
-+ if (k<l) return 0;
- if (l==2) return twobyte_memmem(h, k, n);
- if (l==3) return threebyte_memmem(h, k, n);
- if (l==4) return fourbyte_memmem(h, k, n);