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From 03118775f6a9bf505a65dd0b86a6d2de2e3493a3 Mon Sep 17 00:00:00 2001
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From: lc85446 <lc85446@alibaba-inc.com>
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Date: Thu, 26 Nov 2015 11:46:40 +0800
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Subject: [PATCH] core:execute: fix fork() fail handling in exec_spawn()
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If pid < 0 after fork(), 0 is always returned because r =
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exec_context_load_environment() has exited successfully.
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This will make the caller of exec_spawn() not able to handle
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the fork() error case and make systemd abort assert() possibly.
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Cherry-picked from: 74129a127676e4f0edac0db4296c103e76ec6694
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Resolves: #1437114
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---
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src/core/execute.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/src/core/execute.c b/src/core/execute.c
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index 4265b9c348..e68276973b 100644
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--- a/src/core/execute.c
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+++ b/src/core/execute.c
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@@ -1977,7 +1977,7 @@ int exec_spawn(ExecCommand *command,
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NULL);
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pid = fork();
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if (pid < 0)
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- return log_unit_error_errno(params->unit_id, r, "Failed to fork: %m");
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+ return log_unit_error_errno(params->unit_id, errno, "Failed to fork: %m");
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if (pid == 0) {
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int exit_status;
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