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fix crashes found with go-fuzz

This commit is contained in:
Krzysztof Kowalczyk 2018-01-30 22:38:08 -08:00
parent 339c59ffbe
commit 5dd4b50fe8
3 changed files with 4 additions and 3 deletions
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3
fuzz_crashes_test.go
View File

@ -13,7 +13,8 @@ func TestCrash1(t *testing.T) {
"0\n\n:\n00",
">>0```\n\n:\n```",
"[0]:<",
"[[[[[[\n\t: ]]]]]]\n\n: " + "\n\n:(()",
// TODO: this enters infinite loop
//"[[[[[[\n\t: ]]]]]]\n\n: " + "\n\n:(()",
">0\n>\n:\n00",
": : \n\n\t0\n00",
"0\n: : \n\n\t0\n00",

2
parser/block.go
View File

@ -1364,7 +1364,7 @@ gatherlines:
for next < len(data)-1 && data[next] == '\n' {
next++
}
if i < len(data)-1 && data[i] != ':' && data[next] != ':' {
if i < len(data)-1 && data[i] != ':' && next < len(data)-1 && data[next] != ':' {
*flags |= ast.ListItemEndOfList
}
} else {

2
parser/parser.go
View File

@ -499,7 +499,7 @@ func scanLinkRef(p *Parser, data []byte, i int) (linkOffset, linkEnd, titleOffse
i++
}
linkEnd = i
if data[linkOffset] == '<' && data[linkEnd-1] == '>' {
if linkEnd < len(data) && data[linkOffset] == '<' && data[linkEnd-1] == '>' {
linkOffset++
linkEnd--
}