发布于3月6日3月6日 Members Oracle Linux: CVE-2021-47236: ELSA-2024-12606: Unbreakable Enterprise kernel security update (IMPORTANT) (Multiple Advisories) Severity 5 CVSS (AV:L/AC:L/Au:M/C:C/I:N/A:P) Published 05/21/2024 Created 07/04/2024 Added 07/03/2024 Modified 01/23/2025 Description In the Linux kernel, the following vulnerability has been resolved: net: cdc_eem: fix tx fixup skb leak when usbnet transmit a skb, eem fixup it in eem_tx_fixup(), if skb_copy_expand() failed, it return NULL, usbnet_start_xmit() will have no chance to free original skb. fix it by free orginal skb in eem_tx_fixup() first, then check skb clone status, if failed, return NULL to usbnet. Solution(s) oracle-linux-upgrade-kernel oracle-linux-upgrade-kernel-uek References https://attackerkb.com/topics/cve-2021-47236 CVE - 2021-47236 ELSA-2024-12606 ELSA-2024-4211
