Answer in brief
CVE-2026-97506 records a Unknown severity vulnerability in crypto: ixp4xx - fix buffer chain unwind on allocation failure. The current sources do not mark it as known exploited. The current feed maps 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). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <04cb00106ca4d0fa9eca24cadc4eda6036e855c8 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <028a7f4f3d69e551f6bf9f728d547bbf4cfc707d || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <25056329384010a8672552b134f609601dc4f80e || >=0 <6.12.111 || >=0 <6.18.53 | 04cb00106ca4d0fa9eca24cadc4eda6036e855c8, 028a7f4f3d69e551f6bf9f728d547bbf4cfc707d, 25056329384010a8672552b134f609601dc4f80e, 6.12.111, 6.18.53 |
Published upstream
Sep 24, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 24, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 25, 2026
In the Linux kernel, the following vulnerability has been resolved: crypto: ixp4xx - fix buffer chain unwind on allocation failure chainup_buffers() builds a linked list of buffer descriptors for a scatterlist. If dma_pool_alloc() fails while constructing the list, the current code sets buf to NULL and later dereferences it unconditionally at the end of the function: buf->next = NULL; buf->phys_next = 0; This can lead to a null-pointer dereference on allocation failure. If the failure happens after part of the descriptor chain has already been allocated and DMA-mapped, the partially constructed chain also needs to be released. Fix this by terminating the partially constructed chain on allocation failure and letting the callers unwind it via their existing cleanup paths. Also fix ablk_perform() to preserve the hook pointers before checking for failure, so partially built chains can be freed correctly.
Quoted source text, attributed separately from HOL analysis.