Description
In the Linux kernel, the following vulnerability has been resolved: tls: fix use-after-free on failed backlog decryption When the decrypt request goes to the backlog and crypto_aead_decrypt returns -EBUSY, tls_do_decryption will wait until all async decryptions have completed. If one of them fails, tls_do_decryption will return -EBADMSG and tls_decrypt_sg jumps to the error path, releasing all the pages. But the pages have been passed to the async callback, and have already been released by tls_decrypt_done. The only true async case is when crypto_aead_decrypt returns -EINPROGRESS. With -EBUSY, we already waited so we can tell tls_sw_recvmsg that the data is available for immediate copy, but we need to notify tls_decrypt_sg (via the new ->async_done flag) that the memory has already been released.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
cd1bbca03f3c1d845ce274c0d0a66de8e5929f72 to < f2b85a4cc763841843de693bbd7308fe9a2c4c89affected13eca403876bbea3716e82cdfe6f1e6febb38754 to < 81be85353b0f5a7b660635634b655329b429eefeaffectedab6397f072e5097f267abf5cb08a8004e6b17694 to < 1ac9fb84bc7ecd4bc6428118301d9d864d2a58d1affected8590541473188741055d27b955db0777569438e3 to < 13114dc5543069f7b97991e3b79937b6da05f5b0affected3ade391adc584f17b5570fd205de3ad029090368affected5.15.160 to < 5.16affected
Linux Linux
Default version status: unaffected
6.6.18 to < 6.6.21affected6.7.6 to < 6.7.9affected