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Fix unsafe use of strtol() on a non-null-terminated Text datum.
jsonb_set() could produce wrong answers or incorrect error reports, or in
the worst case even crash, when trying to convert a path-array element into
an integer for use as an array subscript. Per report from Vitaly Burovoy.
Back-patch to 9.5 where the faulty code was introduced (in commit
c6947010ce
).
Michael Paquier
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parent
147112d098
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@ -3873,7 +3873,7 @@ setPathArray(JsonbIterator **it, Datum *path_elems, bool *path_nulls,
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/* pick correct index */
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if (level < path_len && !path_nulls[level])
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{
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char *c = VARDATA_ANY(path_elems[level]);
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char *c = TextDatumGetCString(path_elems[level]);
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long lindex;
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errno = 0;
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