Answer in brief
CVE-2026-74622 records a Unknown severity vulnerability in net: atlantic: free RX pages of consumed but not refilled buffers. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=46f4c29d9de6e4a9d4ed7de9a37dd42501d89f86 <1e58b0bab40dcbdfc04acaba6a221d40801c3770 || >=46f4c29d9de6e4a9d4ed7de9a37dd42501d89f86 <30c473ea097ef0c93b064281b3e295c97d17e28b || >=46f4c29d9de6e4a9d4ed7de9a37dd42501d89f86 <17c99dd86f169c7a3e73d6778e79ef5b1ed3ceac || >=46f4c29d9de6e4a9d4ed7de9a37dd42501d89f86 <ff451bc4290b79c04f1c5cfa928d448f9d47ecf5 || >=46f4c29d9de6e4a9d4ed7de9a37dd42501d89f86 <64e1346bc66b947eb80b848e4c8d9828ba50e0fe || >=46f4c29d9de6e4a9d4ed7de9a37dd42501d89f86 <782cc40b7ade4614a8aec0b948b8cf95c69f8d4b || >=46f4c29d9de6e4a9d4ed7de9a37dd42501d89f86 <24d87dc28ddd3771dd0e88719209811809729439 || >=46f4c29d9de6e4a9d4ed7de9a37dd42501d89f86 <e8e7471ef686b6c002218fee9671cc61992ae01a | 1e58b0bab40dcbdfc04acaba6a221d40801c3770, 30c473ea097ef0c93b064281b3e295c97d17e28b, 17c99dd86f169c7a3e73d6778e79ef5b1ed3ceac, ff451bc4290b79c04f1c5cfa928d448f9d47ecf5, 64e1346bc66b947eb80b848e4c8d9828ba50e0fe, 782cc40b7ade4614a8aec0b948b8cf95c69f8d4b, 24d87dc28ddd3771dd0e88719209811809729439, e8e7471ef686b6c002218fee9671cc61992ae01a |
| Linux/Linuxgeneric | 5.2 | Not reported |
Published upstream
Aug 22, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 22, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 22, 2026
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.
Quoted source text, attributed separately from HOL analysis.