CVE-2024-26800
Vulnerability from cvelistv5
Published
2024-04-04 08:20
Modified
2024-12-19 08:47
Severity ?
Summary
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/13114dc5543069f7b97991e3b79937b6da05f5b0Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1ac9fb84bc7ecd4bc6428118301d9d864d2a58d1Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/81be85353b0f5a7b660635634b655329b429eefePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f2b85a4cc763841843de693bbd7308fe9a2c4c89Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/13114dc5543069f7b97991e3b79937b6da05f5b0Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/1ac9fb84bc7ecd4bc6428118301d9d864d2a58d1Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/81be85353b0f5a7b660635634b655329b429eefePatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/f2b85a4cc763841843de693bbd7308fe9a2c4c89Patch
Impacted products
Vendor Product Version
Linux Linux Version: 6.6.18   ≤
Version: 6.7.6   ≤
Show details on NVD website

To clipboard 

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