Fix potential unsigned integer underflow in jsonAppendString().

FossilOrigin-Name: d2fba2cbdc3870d34228c1a9446eced884325acc183900d7dd0b96132570fb4a
This commit is contained in:
drh 2023-12-02 15:06:43 +00:00
parent 82136d90f8
commit 4cd397c0d9
3 changed files with 8 additions and 8 deletions

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@ -1,5 +1,5 @@
C Minor\sfix\sto\sthe\sheader\scomment\son\sjsonXlateTextToBlob().
D 2023-12-02T14:55:46.474
C Fix\spotential\sunsigned\sinteger\sunderflow\sin\sjsonAppendString().
D 2023-12-02T15:06:43.574
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F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@ -688,7 +688,7 @@ F src/hash.h 3340ab6e1d13e725571d7cee6d3e3135f0779a7d8e76a9ce0a85971fa3953c51
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F src/json.c 9ff2d40ed0d0199d88fa414f519a977bee38df27907702663b1cc5bc85274b05
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F src/legacy.c d7874bc885906868cd51e6c2156698f2754f02d9eee1bae2d687323c3ca8e5aa
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F src/main.c 1b89f3de98d1b59fec5bac1d66d6ece21f703821b8eaa0d53d9604c35309f6f9
@ -2145,8 +2145,8 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
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# Remove this line to create a well-formed Fossil manifest.

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c3677ba410208c07b711f5f526eb5cf039a8eee49f632c7ae04fa55cdfbb9058
d2fba2cbdc3870d34228c1a9446eced884325acc183900d7dd0b96132570fb4a

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@ -603,7 +603,7 @@ static void jsonAppendString(JsonString *p, const char *zIn, u32 N){
p->zBuf[p->nUsed++] = '"';
while( 1 /*exit-by-break*/ ){
k = 0;
while( k<N-1 && jsonIsOk[z[k]] && jsonIsOk[z[k+1]] ){ k += 2; }
while( k+1<N && jsonIsOk[z[k]] && jsonIsOk[z[k+1]] ){ k += 2; }
while( k<N && jsonIsOk[z[k]] ){ k++; }
if( k>=N ){
if( k>0 ){