CVE-2022-48637: Linux Kernel

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: bnxt: prevent skb UAF after handing over to PTP worker When reading the timestamp is required bnxt_tx_int() hands over the ownership of the completed skb to the PTP worker. The skb should not be used afterwards, as the worker may run before the rest of our code and free the skb, leading to a use-after-free. Since dev_kfree_skb_any() accepts NULL make the loss of ownership more obvious and set skb to NULL.

Affected products

• Linux Linux Kernel: from 5.14, before 5.15.71 (fixed in 5.15.71); from 5.16, before 5.19.12 (fixed in 5.19.12); version 6.0 only

Published 2024-04-28. Last modified 2026-08-04.