From: drh <>
Date: Fri, 6 Mar 2026 21:31:07 +0000 (+0000)
Subject: Fix a NULL pointer dereference in the (undocumented) two-argument version
X-Git-Tag: major-release~111
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7c483444a1259e15ffdc4191e54370721dd054e2;p=thirdparty%2Fsqlite.git

Fix a NULL pointer dereference in the (undocumented) two-argument version
of the decimal() extension SQL function.
[forum:/forumpost/fa9c2dc83f|Forum post fa9c2dc83f].

FossilOrigin-Name: a0266351df8700383d50c2ef2d179dd82b0e0fd7fc70d05a91d5e4e845983b46
---

diff --git a/ext/misc/decimal.c b/ext/misc/decimal.c
index be4321ca8c..796c510a43 100644
--- a/ext/misc/decimal.c
+++ b/ext/misc/decimal.c
@@ -298,6 +298,7 @@ static void decimal_round(Decimal *p, int N){
   int i;
   int nZero;
   if( N<1 ) return;
+  if( p==0 ) return;
   for(nZero=0; nZero<p->nDigit && p->a[nZero]==0; nZero++){}
   N += nZero;
   if( p->nDigit<=N ) return;
diff --git a/manifest b/manifest
index d749f14c27..68dcf4a413 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Small\stypo\sfix\sin\sthe\sFP_DIGITS\sAPI\sdocs.
-D 2026-03-06T19:39:03.260
+C Fix\sa\sNULL\spointer\sdereference\sin\sthe\s(undocumented)\stwo-argument\sversion\nof\sthe\sdecimal()\sextension\sSQL\sfunction.\n[forum:/forumpost/fa9c2dc83f|Forum\spost\sfa9c2dc83f].
+D 2026-03-06T21:31:07.243
 F .fossil-settings/binary-glob 61195414528fb3ea9693577e1980230d78a1f8b0a54c78cf1b9b24d0a409ed6a x
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
@@ -370,7 +370,7 @@ F ext/misc/completion.c c27b64fdd0943c1b7f152376599814cee2641f7d67a7bb9bd2b957c2
 F ext/misc/compress.c 8191118b9b73e7796c961790db62d35d9b0fb724b045e005a5713dc9e0795565
 F ext/misc/csv.c e82124eabee0e692d7b90ab8b2c34fadbf7b375279f102567fa06e4da4b771bf
 F ext/misc/dbdump.c 678f1b9ae2317b4473f65d03132a2482c3f4b08920799ed80feedd2941a06680
-F ext/misc/decimal.c e1da22eee70d7e3eaa99a6b761bc03c4d01d7ffa554bf3178b1f1f184932806c
+F ext/misc/decimal.c e365fa7e6f1f44a36150cb137c842635341333a1249cd29eb615a5bebdccd841
 F ext/misc/eval.c 04bc9aada78c888394204b4ed996ab834b99726fb59603b0ee3ed6e049755dc1
 F ext/misc/explain.c 606100185fb90d6a1eade1ed0414d53503c86820d8956a06e3b0a56291894f2b
 F ext/misc/fileio.c 33165b3cd99f83dcd333a338eb51491f6b01c8d96cb6ae81f96a6a096834e030
@@ -2189,8 +2189,8 @@ F tool/warnings-clang.sh bbf6a1e685e534c92ec2bfba5b1745f34fb6f0bc2a362850723a9ee
 F tool/warnings.sh d924598cf2f55a4ecbc2aeb055c10bd5f48114793e7ba25f9585435da29e7e98
 F tool/win/sqlite.vsix deb315d026cc8400325c5863eef847784a219a2f
 F tool/winmain.c 00c8fb88e365c9017db14c73d3c78af62194d9644feaf60e220ab0f411f3604c
-P 9d51bec1b17925f5cac0d590c0d70bb34e77fdb7253d18007f52711d42f6f5d0
-R faafbd0263980f02c26e6b799ca07352
-U stephan
-Z c2682495642bf42a556122ce9916399d
+P 0286f97f34fd560d4ba423bd28d18ac080c918b0e99b8d16c4a213cf205b5e5b
+R d74b29182b81b1577e729e296083a691
+U drh
+Z ea2fda05a11c54db1476c63179e8b074
 # Remove this line to create a well-formed Fossil manifest.
diff --git a/manifest.uuid b/manifest.uuid
index c35891a833..bb008180f4 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-0286f97f34fd560d4ba423bd28d18ac080c918b0e99b8d16c4a213cf205b5e5b
+a0266351df8700383d50c2ef2d179dd82b0e0fd7fc70d05a91d5e4e845983b46