Jakub

**Name of the Vulnerable Software and Affected Versions** Linux kernel (affected versions not specified) **Description** The Linux kernel contains a flaw related to fragmented packets and conntrack references. Specifically, the issue arises when handling fragmented packets where conntrack cleanup gets stuck due to skbs holding nf conn references via their fraglist. This can occur during UDP and potentially TCP processing, especially when Path MTU discovery is disabled. The problem stems from reassembled skbs ending up in the pcpu freelist while still maintaining nf conn references, preventing conntrack module removal. The root cause is identified as the introduction of `skb attempt defer free()` in commit 6471658dc66c. The recommended solution involves dropping nf conn entries when they are placed in the defrag queue, retaining the entry only for the first skb to maintain nf conn for the TX path. **Recommendations** At the moment, there is no information about a newer version that contains a fix for this vulnerability.

**Name of the Vulnerable Software and Affected Versions:** Linux kernel (affected versions not specified) **Description:** This issue resolves a critical lock within the iavf driver, eliminating error-prone logic associated with `try locks`. The resolution involves replacing the critical lock with a netdev lock where applicable, addressing potential deadlocks reported by Lockdep during Virtual Function (VF) removal and work cancellation. The changes extend the protected section of the `iavf watchdog task()` function to encompass more work scheduling and correct a misplaced comment within `iavf reset task()`. The initial patch addresses a deadlock during VF removal and a circular locking dependency detected during work cancellation. **Recommendations:** At the moment, there is no information about a newer version that contains a fix for this vulnerability.

**Name of the Vulnerable Software and Affected Versions** libmspack versions prior to 0.5 **Description** The issue is caused by an off-by-one error in the `lzxd decompress` function, which can lead to a denial of service due to a buffer under-read and application crash. This can be triggered by remote attackers via a crafted CAB archive. **Recommendations** For versions prior to 0.5, update to version 0.5 or later to resolve the issue. As a temporary workaround, consider restricting the handling of CAB archives from untrusted sources to minimize the risk of exploitation.