net: better track kernel sockets lifetime

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Medium: kernel6.12

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: btrfs: do proper folio cleanup when cowfilerange failed CVE-2024-57976 In the Linux kernel, the following vulnerability has been resolved: kernel: be more careful about dupmmap failures and uprobe registering...

kernel: smb: client: Fix use-after-free of network namespace.

In the Linux kernel, the following vulnerability has been resolved: smb: client: Fix use-after-free of network namespace. Recently, we got a customer report that CIFS triggers oops while reconnecting to a server. 0 The workload runs on Kubernetes, and some pods mount CIFS servers in non-root...

DEBIAN-CVE-2025-37790

In the Linux kernel, the following vulnerability has been resolved: net: mctp: Set SOCKRCUFREE Bind lookup runs under RCU, so ensure that a socket doesn't go away in the middle of a lookup...

AZL-62830 CVE-2025-21884 affecting package kernel for versions less than 6.6.104.2-1

In the Linux kernel, the following vulnerability has been resolved: net: better track kernel sockets lifetime While kernel sockets are dismantled during pernetoperations-exit, their freeing can be delayed by any tx packets still held in qdisc or device queues, due to skbsetownerw prior calls. Thi...

CVE-2025-21884

CVE-2025-21884 affects the Linux kernel. The issue arises when kernel sockets are dismantled during pernet_operations->exit; freeing can be delayed by tx packets still in qdisc/device queues because of skb_set_owner_w() usage, leading to incorrect reference tracking. The fix adds sk_net_refcnt...

CVE-2025-21884 net: better track kernel sockets lifetime

In the Linux kernel, the following vulnerability has been resolved: net: better track kernel sockets lifetime While kernel sockets are dismantled during pernetoperations-exit, their freeing can be delayed by any tx packets still held in qdisc or device queues, due to skbsetownerw prior calls. Thi...