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| author | Denys Vlasenko | 2018-01-19 16:58:44 +0100 |
|---|---|---|
| committer | Denys Vlasenko | 2018-01-19 16:58:44 +0100 |
| commit | 46f839c3f7476cb9016c4787729f64a2c24509d1 (patch) | |
| tree | 86fc669084f4f0c8ecff60fcd3a6b11f39c5efed /shell | |
| parent | b8d076b00bad9da87e6dcaf4f36dfd06e2d2e5e8 (diff) | |
| download | busybox-46f839c3f7476cb9016c4787729f64a2c24509d1.zip busybox-46f839c3f7476cb9016c4787729f64a2c24509d1.tar.gz | |
hush: fix a case where EXIT trap may modify its code mid-flight
function old new delta
hush_exit 93 99 +6
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'shell')
| -rw-r--r-- | shell/hush.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/shell/hush.c b/shell/hush.c index 85526a9..7b83c73 100644 --- a/shell/hush.c +++ b/shell/hush.c @@ -1936,7 +1936,7 @@ static void hush_exit(int exitcode) if (G.exiting <= 0 && G_traps && G_traps[0] && G_traps[0][0]) { char *argv[3]; /* argv[0] is unused */ - argv[1] = G_traps[0]; + argv[1] = xstrdup(G_traps[0]); /* copy, since EXIT trap handler may modify G_traps[0] */ argv[2] = NULL; G.exiting = 1; /* prevent EXIT trap recursion */ /* Note: G_traps[0] is not cleared! |