0daf48d9aa
Resolves: #2047682,#2068043,#2068131,#2073003,#2073994,#2082131,#2083493,#2087652,#2100340
65 lines
2.4 KiB
Diff
65 lines
2.4 KiB
Diff
From fdc436432f1ca2dd9df2f24728916ab1201015c1 Mon Sep 17 00:00:00 2001
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From: Yu Watanabe <watanabe.yu+github@gmail.com>
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Date: Tue, 5 Apr 2022 21:47:46 +0900
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Subject: [PATCH] core: command argument can be longer than PATH_MAX
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Fixes a bug introduced by 065364920281e1cf59cab989e17aff21790505c4.
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Fixes #22957.
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(cherry picked from commit 58dd4999dcc81a0ed92fbd78bce3592c3e3afe9e)
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Resolves: #2073994
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---
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src/core/load-fragment.c | 2 +-
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src/test/test-load-fragment.c | 16 ++++++++++++++++
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2 files changed, 17 insertions(+), 1 deletion(-)
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diff --git a/src/core/load-fragment.c b/src/core/load-fragment.c
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index ad5a0912fc..461e073269 100644
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--- a/src/core/load-fragment.c
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+++ b/src/core/load-fragment.c
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@@ -1000,7 +1000,7 @@ int config_parse_exec(
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if (r < 0)
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return ignore ? 0 : -ENOEXEC;
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- r = unit_path_printf(u, word, &resolved);
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+ r = unit_full_printf(u, word, &resolved);
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if (r < 0) {
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log_syntax(unit, ignore ? LOG_WARNING : LOG_ERR, filename, line, r,
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"Failed to resolve unit specifiers in %s%s: %m",
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diff --git a/src/test/test-load-fragment.c b/src/test/test-load-fragment.c
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index fbe4744333..c579be4150 100644
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--- a/src/test/test-load-fragment.c
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+++ b/src/test/test-load-fragment.c
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@@ -10,6 +10,7 @@
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#include "capability-util.h"
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#include "conf-parser.h"
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#include "fd-util.h"
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+#include "fileio.h"
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#include "format-util.h"
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#include "fs-util.h"
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#include "hashmap.h"
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@@ -416,6 +417,21 @@ TEST(config_parse_exec) {
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assert_se(r == 0);
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assert_se(c1->command_next == NULL);
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+ log_info("/* long arg */"); /* See issue #22957. */
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+
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+ char x[LONG_LINE_MAX-100], *y;
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+ y = mempcpy(x, "/bin/echo ", STRLEN("/bin/echo "));
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+ memset(y, 'x', sizeof(x) - STRLEN("/bin/echo ") - 1);
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+ x[sizeof(x) - 1] = '\0';
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+
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+ r = config_parse_exec(NULL, "fake", 5, "section", 1,
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+ "LValue", 0, x,
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+ &c, u);
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+ assert_se(r >= 0);
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+ c1 = c1->command_next;
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+ check_execcommand(c1,
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+ "/bin/echo", NULL, y, NULL, false);
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+
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log_info("/* empty argument, reset */");
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r = config_parse_exec(NULL, "fake", 4, "section", 1,
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"LValue", 0, "",
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