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Additional protection for bad state when rebuilding a message block

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Signed-off-by: Derek Collison <derek@nats.io>
This commit is contained in:
Derek Collison
2023-03-29 11:05:47 -07:00
parent a9a4df859f
commit ddfa5cdfec
1 changed files with 1 additions and 1 deletions
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2
server/filestore.go
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@@ -1044,7 +1044,7 @@ func (mb *msgBlock) rebuildStateLocked() (*LostStreamData, error) {
rl &^= hbit
dlen := int(rl) - msgHdrSize
// Do some quick sanity checks here.
if dlen < 0 || int(slen) > dlen || dlen > int(rl) || rl > rlBadThresh {
if dlen < 0 || int(slen) > (dlen-8) || dlen > int(rl) || rl > rlBadThresh {
truncate(index)
return gatherLost(lbuf - index), errBadMsg
}