forked from mirrors/nixpkgs
30 lines
1.2 KiB
Diff
30 lines
1.2 KiB
Diff
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From 41e94983dcfbc1667f1b18c5b566aa5c5975edcb Mon Sep 17 00:00:00 2001
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From: Thomas Tuegel <ttuegel@mailbox.org>
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Date: Mon, 17 Feb 2020 04:45:03 -0600
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Subject: [PATCH 4/4] start_kdeinit-environ-hard-limit
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---
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src/start_kdeinit/start_kdeinit.c | 6 +++++-
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1 file changed, 5 insertions(+), 1 deletion(-)
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diff --git a/src/start_kdeinit/start_kdeinit.c b/src/start_kdeinit/start_kdeinit.c
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index f2db3e9..4ff2602 100644
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--- a/src/start_kdeinit/start_kdeinit.c
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+++ b/src/start_kdeinit/start_kdeinit.c
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@@ -148,7 +148,11 @@ int main(int argc, char **argv)
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++i) {
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unsigned len;
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if (read(0, &len, sizeof(unsigned)) == sizeof(unsigned)
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- && len && len < (1 << 12)) {
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+ && len) {
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+ if (len >= (1 << 14)) {
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+ fprintf(stderr, "%s: exceeded environment length limit", argv[0]);
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+ return 1;
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+ }
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env[ i ] = malloc(len + 1);
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if ((unsigned) read(0, env[ i ], len) == len) {
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env[ i ][ len ] = '\0';
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--
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2.23.1
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