58 lines
2.2 KiB
Diff
58 lines
2.2 KiB
Diff
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From dcc55e1b0930c6db277e87b8a521e82f3d0f74c3 Mon Sep 17 00:00:00 2001
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From: Andrew Lukoshko <alukoshko@almalinux.org>
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Date: Thu, 17 Oct 2024 10:19:25 +0000
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Subject: [PATCH] core: reorder systemd arguments on reexec
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When reexecuting system let's put our arguments carrying deserialization
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info first followed by any existing arguments to make sure they get
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parsed in case we get weird stuff from the kernel cmdline (like --).
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See: https://github.com/systemd/systemd/issues/28184
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---
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src/core/main.c | 6 +++++-
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test/TEST-01-BASIC/test.sh | 5 +++++
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2 files changed, 10 insertions(+), 1 deletion(-)
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diff --git a/src/core/main.c b/src/core/main.c
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index e7b8e98..6df29f3 100644
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--- a/src/core/main.c
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+++ b/src/core/main.c
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@@ -1813,13 +1813,17 @@ static int do_reexecute(
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xsprintf(sfd, "%i", fileno(arg_serialization));
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i = 1; /* Leave args[0] empty for now. */
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- filter_args(args, &i, argv, argc);
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+ /* Put our stuff first to make sure it always gets parsed in case
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+ * we get weird stuff from the kernel cmdline (like --) */
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if (switch_root_dir)
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args[i++] = "--switched-root";
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args[i++] = arg_system ? "--system" : "--user";
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args[i++] = "--deserialize";
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args[i++] = sfd;
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+
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+ filter_args(args, &i, argv, argc);
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+
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args[i++] = NULL;
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assert(i <= args_size);
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diff --git a/test/TEST-01-BASIC/test.sh b/test/TEST-01-BASIC/test.sh
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index cc6d065..d0e714a 100755
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--- a/test/TEST-01-BASIC/test.sh
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+++ b/test/TEST-01-BASIC/test.sh
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@@ -8,6 +8,11 @@ RUN_IN_UNPRIVILEGED_CONTAINER=${RUN_IN_UNPRIVILEGED_CONTAINER:-yes}
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TEST_REQUIRE_INSTALL_TESTS=0
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TEST_SUPPORTING_SERVICES_SHOULD_BE_MASKED=0
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+# Check if we can correctly deserialize if the kernel cmdline contains "weird" stuff
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+# like an invalid argument, "end of arguments" separator, or a sysvinit argument (-z)
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+# See: https://github.com/systemd/systemd/issues/28184
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+KERNEL_APPEND="foo -- -z bar --- baz $KERNEL_APPEND"
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+
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# shellcheck source=test/test-functions
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. "${TEST_BASE_DIR:?}/test-functions"
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--
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2.43.5
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