top: move free(prev_hist) out of signal path
It was seen being called recursively on repeated signals, leading to double free Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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parent
b11be131b7
commit
aedc3fe19f
12
procps/top.c
12
procps/top.c
@ -728,12 +728,6 @@ static void reset_term(void)
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{
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{
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if (!OPT_BATCH_MODE)
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if (!OPT_BATCH_MODE)
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tcsetattr_stdin_TCSANOW(&initial_settings);
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tcsetattr_stdin_TCSANOW(&initial_settings);
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if (ENABLE_FEATURE_CLEAN_UP) {
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clearmems();
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# if ENABLE_FEATURE_TOP_CPU_USAGE_PERCENTAGE
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free(prev_hist);
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# endif
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}
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}
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}
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static void sig_catcher(int sig)
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static void sig_catcher(int sig)
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@ -1258,5 +1252,11 @@ int top_main(int argc UNUSED_PARAM, char **argv)
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#if ENABLE_FEATURE_USE_TERMIOS
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#if ENABLE_FEATURE_USE_TERMIOS
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reset_term();
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reset_term();
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#endif
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#endif
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if (ENABLE_FEATURE_CLEAN_UP) {
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clearmems();
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#if ENABLE_FEATURE_TOP_CPU_USAGE_PERCENTAGE
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free(prev_hist);
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#endif
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}
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return EXIT_SUCCESS;
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return EXIT_SUCCESS;
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}
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}
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