CVE-2024-26582

A use-after-free vulnerability was found in the tls subsystem of the Linux kernel. The tls_decrypt_sg() function doesn't take references on the pages from clear_skb, so the put_page() in tls_decrypt_done() releases them and a use-after-free can be triggered in process_rx_list when trying to read from the partially-read skb. This issue could lead to a denial of service condition or code execution.

Red Hat Enterprise Linux 6 and 7 are not affected by this CVE as they did not include kernel TLS support (upstream commit 3c4d755). Red Hat Enterprise Linux 8 is not affected as it did not include the upstream commit that introduced this flaw (fd31f39 "tls: rx: decrypt into a fresh skb").

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

No current mitigation is available for this vulnerability. Please make sure to have kernel up-to-date as soon as the patches are available to make sure the flaw mitigated.