eda47481b9
kpatch_process: fix possible double free. ptrace: fix NULL pointer access problem fix patched process crashing when acccess the global var fix probably restore cc symbol link fail when kill patch building uncourteous optimize: Remove unnecessary comparison code Signed-off-by: yezengruan <yezengruan@huawei.com> (cherry picked from commit f3d59711105eb667fa2f920958fcbdbb7068afd2)
33 lines
1.1 KiB
Diff
33 lines
1.1 KiB
Diff
From 9d601f4c697a9b2d926d92025bb43dd6ebf36033 Mon Sep 17 00:00:00 2001
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From: Bihong Yu <yubihong@huawei.com>
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Date: Tue, 18 Jan 2022 19:29:12 +0800
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Subject: [PATCH] gensrc: we should add align while FLAGS_PUSH_SECTION flag is
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set
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In order to ensure the .kpatch.text readable and executable and
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the .kpatch.data readable and writeable, we should make sure the
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.kpatch.data is page-align. So we should add align while the
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.kpatch.data being pushed for the first time.
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Signed-off-by: Bihong Yu <yubihong@huawei.com>
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---
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src/kpatch_gensrc.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/src/kpatch_gensrc.c b/src/kpatch_gensrc.c
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index 32c7afc..bf1832a 100644
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--- a/src/kpatch_gensrc.c
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+++ b/src/kpatch_gensrc.c
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@@ -448,7 +448,7 @@ static void change_section(struct kp_file *fout, struct section_desc *sect, int
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s = ".kpatch.text,\"ax\",@progbits";
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else {
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s = ".kpatch.data,\"aw\",@progbits";
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- if (!init_data_section && !(flags & FLAG_PUSH_SECTION)) {
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+ if (!init_data_section && (flags & FLAG_PUSH_SECTION)) {
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init_data_section = 1;
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align = ".p2align\t12";
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}
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--
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2.27.0
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