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11b8ab3836
When crypto_shash_digestsize() fails, c->hmac_tfm has not been freed before returning, which leads to memleak. Fixes: 49525e5eecca5 ("ubifs: Add helper functions for authentication support") Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn> Reviewed-by: Zhihao Cheng <chengzhihao1@huawei.com> Signed-off-by: Richard Weinberger <richard@nod.at>