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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2018-12-14 13:44:14 +0800 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2019-02-25 12:51:53 +0800 |
| commit | 2bc6caace3b08024955ed57fc993d91067f883a1 (patch) | |
| tree | 99bd8ae3035ad029b758a2e9471c8710f487ddae /src/trap.c | |
| 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 '')
0 files changed, 0 insertions, 0 deletions