CVE-2026-74622
CVE CVE-2026-74622EUVD EUVD-2026-64559Published 2026-08-22T15:32:05.000Z
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: net: atlantic: free RX pages of consumed but not refilled buffers aq_ring_rx_deinit() only walks [sw_head, sw_tail), the region posted to hardware. Since the page reuse strategy was added, a cleaned RX buffer keeps its page (and its DMA mapping) in the ring for reuse, and refill is batched: aq_ring_rx_fill() returns early until AQ_CFG_RX_REFILL_THRES slots are free. Slots that were consumed but not yet reposted therefore sit in the complementary [sw_tail, sw_head) gap with a live page, and the deinit walk never visits them: up to a refill batch worth of pages and DMA mappings leak on every interface down. Walk the whole ring instead and release whatever is still there. Also bail out if the buffer ring is already gone: a partial aq_ptp_ring_alloc() failure frees the ring but leaves aq_nic set, so aq_ptp_ring_deinit() still gets here on the unwind path.
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 46f4c29d9de6e4a9d4ed7de9a37dd42501d89f86 <17c99dd86f169c7a3e73d6778e79ef5b1ed3ceac; patch: 5.15.216; patch: 6.18.45; 46f4c29d9de6e4a9d4ed7de9a37dd42501d89f86 <24d87dc28ddd3771dd0e88719209811809729439; 46f4c29d9de6e4a9d4ed7de9a37dd42501d89f86 <ff451bc4290b79c04f1c5cfa928d448f9d47ecf5; patch: 6.1.183; 46f4c29d9de6e4a9d4ed7de9a37dd42501d89f86 <1e58b0bab40dcbdfc04acaba6a221d40801c3770; patch: 7.1.9; 5.2; 46f4c29d9de6e4a9d4ed7de9a37dd42501d89f86 <782cc40b7ade4614a8aec0b948b8cf95c69f8d4b; patch: 0; patch: 7.2; patch: 6.6.152; patch: 6.12.104; patch: 5.10.265; 46f4c29d9de6e4a9d4ed7de9a37dd42501d89f86 <e8e7471ef686b6c002218fee9671cc61992ae01a; 46f4c29d9de6e4a9d4ed7de9a37dd42501d89f86 <64e1346bc66b947eb80b848e4c8d9828ba50e0fe; 46f4c29d9de6e4a9d4ed7de9a37dd42501d89f86 <30c473ea097ef0c93b064281b3e295c97d17e28b
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.