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18 lines
1.3 KiB
Markdown
18 lines
1.3 KiB
Markdown
### [CVE-2024-26800](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-26800)
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### Description
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In the Linux kernel, the following vulnerability has been resolved:tls: fix use-after-free on failed backlog decryptionWhen the decrypt request goes to the backlog and crypto_aead_decryptreturns -EBUSY, tls_do_decryption will wait until all asyncdecryptions have completed. If one of them fails, tls_do_decryptionwill return -EBADMSG and tls_decrypt_sg jumps to the error path,releasing all the pages. But the pages have been passed to the asynccallback, 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 telltls_sw_recvmsg that the data is available for immediate copy, but weneed to notify tls_decrypt_sg (via the new ->async_done flag) that thememory has already been released.
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### POC
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#### Reference
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No PoCs from references.
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#### Github
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- https://github.com/fkie-cad/nvd-json-data-feeds
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