linux-kernel - [PATCH 4.4 15/19] module: set MODULE_STATE_GOING state when a module fails to load

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Message-Id: <20210107140828.298863602@linuxfoundation.org>
Date:   Thu,  7 Jan 2021 15:16:40 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Miroslav Benes <mbenes@...e.cz>,
        Jessica Yu <jeyu@...nel.org>, Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.4 15/19] module: set MODULE_STATE_GOING state when a module fails to load

From: Miroslav Benes <mbenes@...e.cz>

[ Upstream commit 5e8ed280dab9eeabc1ba0b2db5dbe9fe6debb6b5 ]

If a module fails to load due to an error in prepare_coming_module(),
the following error handling in load_module() runs with
MODULE_STATE_COMING in module's state. Fix it by correctly setting
MODULE_STATE_GOING under "bug_cleanup" label.

Signed-off-by: Miroslav Benes <mbenes@...e.cz>
Signed-off-by: Jessica Yu <jeyu@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 kernel/module.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/module.c b/kernel/module.c
index 2f695b6e1a3e0..dcfc811d9ae2d 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -3589,6 +3589,7 @@ static int load_module(struct load_info *info, const char __user *uargs,
 	return do_init_module(mod);
 
  bug_cleanup:
+	mod->state = MODULE_STATE_GOING;
 	/* module_bug_cleanup needs module_mutex protection */
 	mutex_lock(&module_mutex);
 	module_bug_cleanup(mod);
-- 
2.27.0