Description

In the Linux kernel, the following vulnerability has been resolved: crypto: nx - fix bounce buffer leaks in nx842_crypto_{alloc,free}_ctx The bounce buffers are allocated with __get_free_pages() using BOUNCE_BUFFER_ORDER (order 2 = 4 pages), but both the allocation error path and nx842_crypto_free_ctx() release the buffers with free_page(). Use free_pages() with the matching order instead.

References 5

• git.kernel.org https://git.kernel.org/stable/c/5c07962fed66e1238fad7635fa150570bd38b4c5
• git.kernel.org https://git.kernel.org/stable/c/80fd99d7c30ea889662d21f1b44d8fea4c83138d
• git.kernel.org https://git.kernel.org/stable/c/910bb34b801d39794e656f7d48414844b2bd354e
• git.kernel.org https://git.kernel.org/stable/c/adb3faf2db1a66d0f015b44ac909a32dfc7f2f9c
• git.kernel.org https://git.kernel.org/stable/c/f17a4850d1ce7c11cba8b1830b9bfedfede878bb

Remediation