Answer in brief
CVE-2025-40172 records a Unknown severity vulnerability in accel/qaic: Treat remaining == 0 as error in find_and_map_user_pages(). 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 | >=96d3c1cadedb6ae2e8965e19cd12caa244afbd9c <48b1d42286bfef7628b1d6c8c28d4e456c90f725 || >=96d3c1cadedb6ae2e8965e19cd12caa244afbd9c <551f1dfbcb7f3e6ed07f9d6c8c1c64337fcd0ede || >=96d3c1cadedb6ae2e8965e19cd12caa244afbd9c <1ab9733d14cc9987cc5dcd1f0ad1f416e302e2e6 || >=96d3c1cadedb6ae2e8965e19cd12caa244afbd9c <11f08c30a3e4157305ba692f1d44cca5fc9a8fca || d410a96e5cb8c1ec7049c83f2edcd8bbfaf5d9b3 || >=6.4.12 <6.5 | 48b1d42286bfef7628b1d6c8c28d4e456c90f725, 551f1dfbcb7f3e6ed07f9d6c8c1c64337fcd0ede, 1ab9733d14cc9987cc5dcd1f0ad1f416e302e2e6, 11f08c30a3e4157305ba692f1d44cca5fc9a8fca, 6.5 |
| Linux/Linuxgeneric | 6.5 | Not reported |
Published upstream
Nov 12, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: accel/qaic: Treat remaining == 0 as error in find_and_map_user_pages() Currently, if find_and_map_user_pages() takes a DMA xfer request from the user with a length field set to 0, or in a rare case, the host receives QAIC_TRANS_DMA_XFER_CONT from the device where resources->xferred_dma_size is equal to the requested transaction size, the function will return 0 before allocating an sgt or setting the fields of the dma_xfer struct. In that case, encode_addr_size_pairs() will try to access the sgt which will lead to a general protection fault. Return an EINVAL in case the user provides a zero-sized ALP, or the device requests continuation after all of the bytes have been transferred.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2025-40172 records a Unknown severity vulnerability in accel/qaic: Treat remaining == 0 as error in find_and_map_user_pages(). 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 | >=96d3c1cadedb6ae2e8965e19cd12caa244afbd9c <48b1d42286bfef7628b1d6c8c28d4e456c90f725 || >=96d3c1cadedb6ae2e8965e19cd12caa244afbd9c <551f1dfbcb7f3e6ed07f9d6c8c1c64337fcd0ede || >=96d3c1cadedb6ae2e8965e19cd12caa244afbd9c <1ab9733d14cc9987cc5dcd1f0ad1f416e302e2e6 || >=96d3c1cadedb6ae2e8965e19cd12caa244afbd9c <11f08c30a3e4157305ba692f1d44cca5fc9a8fca || d410a96e5cb8c1ec7049c83f2edcd8bbfaf5d9b3 || >=6.4.12 <6.5 | 48b1d42286bfef7628b1d6c8c28d4e456c90f725, 551f1dfbcb7f3e6ed07f9d6c8c1c64337fcd0ede, 1ab9733d14cc9987cc5dcd1f0ad1f416e302e2e6, 11f08c30a3e4157305ba692f1d44cca5fc9a8fca, 6.5 |
| Linux/Linuxgeneric | 6.5 | Not reported |
Published upstream
Nov 12, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: accel/qaic: Treat remaining == 0 as error in find_and_map_user_pages() Currently, if find_and_map_user_pages() takes a DMA xfer request from the user with a length field set to 0, or in a rare case, the host receives QAIC_TRANS_DMA_XFER_CONT from the device where resources->xferred_dma_size is equal to the requested transaction size, the function will return 0 before allocating an sgt or setting the fields of the dma_xfer struct. In that case, encode_addr_size_pairs() will try to access the sgt which will lead to a general protection fault. Return an EINVAL in case the user provides a zero-sized ALP, or the device requests continuation after all of the bytes have been transferred.
Quoted source text, attributed separately from HOL analysis.