6.6-stable review patch. If anyone has any objections, please let me know.
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From: Haoxiang Li haoxiang_li2024@163.com
commit 7c7f1bfdb2249f854a736d9b79778c7e5a29a150 upstream.
In chameleon_parse_gdd(), if mcb_device_register() fails, 'mdev' would be released in mcb_device_register() via put_device(). Thus, goto 'err' label and free 'mdev' again causes a double free. Just return if mcb_device_register() fails.
Fixes: 3764e82e5150 ("drivers: Introduce MEN Chameleon Bus") Cc: stable stable@kernel.org Signed-off-by: Haoxiang Li haoxiang_li2024@163.com Signed-off-by: Johannes Thumshirn jth@kernel.org Link: https://lore.kernel.org/r/6201d09e2975ae5789879f79a6de4c38de9edd4a.174159622... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/mcb/mcb-parse.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/mcb/mcb-parse.c +++ b/drivers/mcb/mcb-parse.c @@ -101,7 +101,7 @@ static int chameleon_parse_gdd(struct mc
ret = mcb_device_register(bus, mdev); if (ret < 0) - goto err; + return ret;
return 0;