neels has uploaded this change for review.

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coverity: CID#27206

prevent negative bitshift.

Change-Id: Ic6068277add1e336c67409d48211d45493153924
---
M src/per_support.c
1 file changed, 3 insertions(+), 0 deletions(-)

git pull ssh://gerrit.osmocom.org:29418/libasn1c refs/changes/89/37989/1

diff --git a/src/per_support.c b/src/per_support.c
index a1c5ae7..7e55263 100644
--- a/src/per_support.c
+++ b/src/per_support.c
@@ -490,6 +490,9 @@
 		buf[2] = bits >> 8,
 		buf[3] = bits;
 	else {
+		/* sanity: prevent negative bitshift (CID#27206) */
+		if (obits < 24)
+			return -1;
 		per_put_few_bits(po, bits >> (obits - 24), 24);
 		per_put_few_bits(po, bits, obits - 24);
 	}

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