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Fix message check
Check pointer from strchr for NULL instead of crash later. Badly formated message would have crash dmeventd otherwise.
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@ -1,5 +1,6 @@
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Version 1.02.70 -
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===================================
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Fix dm_event_get_version() check.
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Add pointer test for dependency check in _add_dev().
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Validate name and uuid params of dm_tree_add_new_dev_with_udev_flags().
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Do not crash for dm_report_init() sort_key == NULL and behave like "".
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@ -811,11 +811,11 @@ int dm_event_get_version(struct dm_event_fifos *fifos, int *version) {
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p = msg.data;
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*version = 0;
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p = strchr(p, ' ') + 1; /* Message ID */
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p = strchr(p, ' '); /* Message ID */
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if (!p) return 0;
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p = strchr(p, ' ') + 1; /* HELLO */
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p = strchr(p + 1, ' '); /* HELLO */
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if (!p) return 0;
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p = strchr(p, ' '); /* HELLO, once more */
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p = strchr(p + 1, ' '); /* HELLO, once more */
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if (p)
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*version = atoi(p);
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return 1;
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