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SUSE:SLE-15-SP1:Update
mercurial.11235
hg-mpatch-fix08.patch
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File hg-mpatch-fix08.patch of Package mercurial.11235
# HG changeset patch # User Augie Fackler <augie@google.com> # Date 1525141386 14400 # Node ID 59837a16896da36d26e795881f4ba4454cb8ae41 # Parent 7f22ef3c0ee721da8a568613dff48a7051fad8d7 mpatch: avoid integer overflow in mpatch_decode (SEC) diff -r 7f22ef3c0ee7 -r 59837a16896d mercurial/mpatch.c --- a/mercurial/mpatch.c Mon Apr 30 22:20:13 2018 -0400 +++ b/mercurial/mpatch.c Mon Apr 30 22:23:06 2018 -0400 @@ -285,10 +285,15 @@ lt->start = getbe32(bin + pos); lt->end = getbe32(bin + pos + 4); lt->len = getbe32(bin + pos + 8); - lt->data = bin + pos + 12; - pos += 12 + lt->len; - if (lt->start > lt->end || lt->len < 0) + if (lt->start < 0 || lt->start > lt->end || lt->len < 0) break; /* sanity check */ + if (!safeadd(12, &pos)) { + break; + } + lt->data = bin + pos; + if (!safeadd(lt->len, &pos)) { + break; + } lt++; }
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