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author | Herbert Xu <herbert@gondor.apana.org.au> | 2018-12-14 13:44:14 +0800 |
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committer | Herbert Xu <herbert@gondor.apana.org.au> | 2019-02-25 12:51:53 +0800 |
commit | 2bc6caace3b08024955ed57fc993d91067f883a1 (patch) | |
tree | 99bd8ae3035ad029b758a2e9471c8710f487ddae /COPYING | |
parent | system: Disable glibc warning on sigsetmask (diff) | |
download | dash-2bc6caace3b08024955ed57fc993d91067f883a1.tar.gz dash-2bc6caace3b08024955ed57fc993d91067f883a1.zip |
eval: avoid leaking memory associated with redirections
The following constructs result in ever-increasing memory usage: while true; do { true; } </dev/null; done while true; do ( true; ) </dev/null; done For comparison, bash displays static memory usage in both cases. This issue was reported for BusyBox ash which is derived from dash: https://bugs.busybox.net/show_bug.cgi?id=7748 Signed-off-by: Ron Yorston <rmy@frippery.org> I have simplified evaltree so that it simply sets the stack mark unconditionally. This allows us to remove the stack marks in the functions called by evaltree. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'COPYING')
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