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virExec: avoid undefined behavior

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* src/util/util.c (__virExec): Don't use FD_ISSET on out-of-bounds fd.
This commit is contained in:
Eric Blake 2010-12-03 15:02:01 -07:00
parent 044f2011aa
commit c3568ec289
1 changed files with 1 additions and 2 deletions
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3
src/util/util.c
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@ -570,8 +570,7 @@ __virExec(const char *const*argv,
i != null &&
i != childout &&
i != childerr &&
(!keepfd ||
!FD_ISSET(i, keepfd))) {
(!keepfd || (i < FD_SETSIZE && !FD_ISSET(i, keepfd)))) {
tmpfd = i;
VIR_FORCE_CLOSE(tmpfd);
}