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sandbox: don't set SA_NODEFER in signal handler

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The sandbox can handle signals. Due to a damaged global data pointer
additional exceptions in the signal handler may occur leading to an endless
loop. In this case leave the handling of the secondary exception to the
operating system.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Heinrich Schuchardt
2021-07-05 19:43:00 +02:00
committed by Simon Glass
parent 03ebc20de3
commit fd25ca3275
1 changed files with 1 additions and 1 deletions
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2
arch/sandbox/cpu/os.c
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@@ -226,7 +226,7 @@ int os_setup_signal_handlers(void)
act.sa_sigaction = os_signal_handler;
sigemptyset(&act.sa_mask);
act.sa_flags = SA_SIGINFO | SA_NODEFER;
act.sa_flags = SA_SIGINFO;
if (sigaction(SIGILL, &act, NULL) ||
sigaction(SIGBUS, &act, NULL) ||
sigaction(SIGSEGV, &act, NULL))