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crypto: atmel-aes - Fix 3-page memory leak in atmel_aes_buff_cleanup

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commit 3fcfff4ed35f963380a68741bcd52742baff7f76 upstream.

atmel_aes_buff_init() allocates 4 pages using __get_free_pages() with
ATMEL_AES_BUFFER_ORDER, but atmel_aes_buff_cleanup() frees only the
first page using free_page(), leaking the remaining 3 pages. Use
free_pages() with ATMEL_AES_BUFFER_ORDER to fix the memory leak.

Fixes: bbe628ed89 ("crypto: atmel-aes - improve performances of data transfer")
Cc: stable@vger.kernel.org
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ulrich Hecht <uli@kernel.org>
This commit is contained in:
Thorsten Blum
2026-03-11 03:07:35 +01:00
committed by Ulrich Hecht
parent b2d837501e
commit be00353592
1 changed files with 1 additions and 1 deletions
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2
drivers/crypto/atmel-aes.c
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@ -2371,7 +2371,7 @@ static int atmel_aes_buff_init(struct atmel_aes_dev *dd)
static void atmel_aes_buff_cleanup(struct atmel_aes_dev *dd)
{
free_page((unsigned long)dd->buf);
free_pages((unsigned long)dd->buf, ATMEL_AES_BUFFER_ORDER);
}
static bool atmel_aes_filter(struct dma_chan *chan, void *slave)