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Fix potential unsigned integer underflow in jsonAppendString().

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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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12
manifest
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@ -1,5 +1,5 @@
C Minor\sfix\sto\sthe\sheader\scomment\son\sjsonXlateTextToBlob(). C Fix\spotential\sunsigned\sinteger\sunderflow\sin\sjsonAppendString().
D 2023-12-02T14:55:46.474 D 2023-12-02T15:06:43.574
F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724 F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@ -688,7 +688,7 @@ F src/hash.h 3340ab6e1d13e725571d7cee6d3e3135f0779a7d8e76a9ce0a85971fa3953c51
F src/hwtime.h f9c2dfb84dce7acf95ce6d289e46f5f9d3d1afd328e53da8f8e9008e3b3caae6 F src/hwtime.h f9c2dfb84dce7acf95ce6d289e46f5f9d3d1afd328e53da8f8e9008e3b3caae6
F src/in-operator.md 10cd8f4bcd225a32518407c2fb2484089112fd71 F src/in-operator.md 10cd8f4bcd225a32518407c2fb2484089112fd71
F src/insert.c 3f0a94082d978bbdd33c38fefea15346c6c6bffb70bc645a71dc0f1f87dd3276 F src/insert.c 3f0a94082d978bbdd33c38fefea15346c6c6bffb70bc645a71dc0f1f87dd3276
F src/json.c 9ff2d40ed0d0199d88fa414f519a977bee38df27907702663b1cc5bc85274b05 F src/json.c c3167c9737da0f3f45538c7599bbf3f090d1ba1e444e4e743935496f37cbddcc
F src/legacy.c d7874bc885906868cd51e6c2156698f2754f02d9eee1bae2d687323c3ca8e5aa F src/legacy.c d7874bc885906868cd51e6c2156698f2754f02d9eee1bae2d687323c3ca8e5aa
F src/loadext.c 7432c944ff197046d67a1207790a1b13eec4548c85a9457eb0896bb3641dfb36 F src/loadext.c 7432c944ff197046d67a1207790a1b13eec4548c85a9457eb0896bb3641dfb36
F src/main.c 1b89f3de98d1b59fec5bac1d66d6ece21f703821b8eaa0d53d9604c35309f6f9 F src/main.c 1b89f3de98d1b59fec5bac1d66d6ece21f703821b8eaa0d53d9604c35309f6f9
@ -2145,8 +2145,8 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
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U drh U drh
Z ecc9fe8f5fc6f3c09b592aceda67d13d Z bee957be31c329bcce231111ed4f35d1
# Remove this line to create a well-formed Fossil manifest. # Remove this line to create a well-formed Fossil manifest.

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manifest.uuid
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c3677ba410208c07b711f5f526eb5cf039a8eee49f632c7ae04fa55cdfbb9058 d2fba2cbdc3870d34228c1a9446eced884325acc183900d7dd0b96132570fb4a

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