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[ Upstream commitce07087964] When p9pdu_readf() is called with "s?d" attribute, it allocates a pointer that will store a string. But when p9pdu_readf() fails while handling "d" then this pointer will not be freed in p9_check_errors(). Fixes:51a87c552d("9p: rework client code to use new protocol support functions") Reviewed-by: Christian Schoenebeck <linux_oss@crudebyte.com> Signed-off-by: Hangyu Hua <hbh25y@gmail.com> Message-ID: <20231027030302.11927-1-hbh25y@gmail.com> Signed-off-by: Dominique Martinet <asmadeus@codewreck.org> Signed-off-by: Sasha Levin <sashal@kernel.org>