CVE-2026-63972
CVE CVE-2026-63972EUVD EUVD-2026-45745Published 2026-07-19T14:55:58.000ZLast changed 2026-08-05T12:37:43.000ZCVSS 7.5
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: net: mana: Skip redundant detach on already-detached port When mana_per_port_queue_reset_work_handler() runs after a previous detach succeeded but attach failed, the port is left in a detached state with apc->tx_qp and apc->rxqs already freed. Calling mana_detach() again unconditionally leads to NULL pointer dereferences during queue teardown. Add an early exit in mana_detach() when the port is already in detached state (!netif_device_present) for non-close callers, making it safe to call idempotently. This allows the queue reset handler and other recovery paths to simply retry mana_attach() without redundant teardown.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux patch: 6.18.35; 7.0; 3b194343c25084a8d2fa0c0f2c9e80f3080fd732 <7ae590797f9b5c240aaea5773f5f00977a42a846; fb9f98e1041a30dd5766620a2a64cb472b54caa9 <c4152b4e28b3e550ec99351bf900e2c24c2608cc; 3b194343c25084a8d2fa0c0f2c9e80f3080fd732 <5b05aa36ee24297d7296ca58dfd8c448d0e4cda3; patch: 0; patch: 7.1; patch: 7.0.12; 6.18.33 <6.18.35
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
Does this concern one of your customers?
This page cannot answer that — it does not know your estate. Whoever has recorded their environments gets the answer the morning after publication, together with a paragraph they can forward to the customer unedited.
Try it for 28 daysPatchlage reports hits and suspected hits. About everything else this system says nothing — neither this page nor the situation report ever claims that an estate is safe.