35 lines
1.1 KiB
Diff
35 lines
1.1 KiB
Diff
From 940d475e612a8ae2e3fe48213e7ed2a5c2a40705 Mon Sep 17 00:00:00 2001
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From: Zdenek Kabelac <zkabelac@redhat.com>
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Date: Mon, 30 Jun 2025 14:11:16 +0200
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Subject: [PATCH 31/47] cov: check for potential empty registry list
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Check early for empty thread_registry list and return EINVAL
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instead of doing zero length allocation.
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(cherry picked from commit bf580fcc2f17a0c7c732b929ed08acaf9dd831d7)
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---
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daemons/dmeventd/dmeventd.c | 7 ++++++-
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1 file changed, 6 insertions(+), 1 deletion(-)
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diff --git a/daemons/dmeventd/dmeventd.c b/daemons/dmeventd/dmeventd.c
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index b823a0476..2224ba23e 100644
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--- a/daemons/dmeventd/dmeventd.c
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+++ b/daemons/dmeventd/dmeventd.c
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@@ -680,7 +680,12 @@ static int _get_status(struct message_data *message_data)
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return -EINVAL;
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_lock_mutex();
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- count = dm_list_size(&_thread_registry);
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+ if (!(count = dm_list_size(&_thread_registry))) {
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+ _unlock_mutex();
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+ ret = -EINVAL;
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+ goto out;
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+ }
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+
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buffers = alloca(sizeof(char*) * count);
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dm_list_iterate_items(thread, &_thread_registry) {
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if ((current = dm_asprintf(buffers + i, "0:%d %s %s %u %" PRIu32 ";",
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--
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2.51.0
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