CVE-2026-97506 (GCVE-0-2026-97506)

Vulnerability from cvelistv5 – Published: 2026-09-24 16:04 – Updated: 2026-10-03 10:59
VLAI
Title
crypto: ixp4xx - fix buffer chain unwind on allocation failure
Summary
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.
Severity
No CVSS data available.
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6641 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 0d44dc59b2b434b29aafeae581d06f81efac7c83 , < d4007867be42d71795b78fa7f8ce7514dda9ca83 (git)
Affected: 0d44dc59b2b434b29aafeae581d06f81efac7c83 , < 4918b0bd7d2baafb45d87dca9e322137c96005c2 (git)
Affected: 0d44dc59b2b434b29aafeae581d06f81efac7c83 , < 8c37bc8d6a6f77bf9593fb1bcab6c14c7cf02991 (git)
Affected: 0d44dc59b2b434b29aafeae581d06f81efac7c83 , < 04cb00106ca4d0fa9eca24cadc4eda6036e855c8 (git)
Affected: 0d44dc59b2b434b29aafeae581d06f81efac7c83 , < 028a7f4f3d69e551f6bf9f728d547bbf4cfc707d (git)
Affected: 0d44dc59b2b434b29aafeae581d06f81efac7c83 , < 25056329384010a8672552b134f609601dc4f80e (git)
Affected: 5a80273150a8a1725fa70418d106eb1f2ee8fd2f (git)
Affected: 82a8becb9c2c52fc5e67057a43aeded1f0731e7b (git)
Affected: 68845515c8b11791b547a2838e22c27dfa3115ee (git)
Affected: 2.6.27.22 , < 2.6.28 (semver)
Affected: 2.6.28.10 , < 2.6.29 (semver)
Affected: 2.6.29.3 , < 2.6.30 (semver)
guessed Create a notification for this product.
Linux Linux Affected: 2.6.30
Unaffected: 0 , < 2.6.30 (semver)
Unaffected: 5.15.222 , ≤ 5.15.* (semver)
Unaffected: 6.1.189 , ≤ 6.1.* (semver)
Unaffected: 6.6.158 , ≤ 6.6.* (semver)
Unaffected: 6.12.111 , ≤ 6.12.* (semver)
Unaffected: 6.18.53 , ≤ 6.18.* (semver)
Unaffected: 7.2 , ≤ * (original_commit_for_fix)
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    "dateReserved": "2026-09-24T16:01:01.151Z",
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      "version": "3"
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      "cve": "CVE-2026-97506",
      "id": "CVE-2026-97506",
      "initial_release_date": "2026-09-24T23:45:05Z",
      "product_status:known_affected": "348",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-97506",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/2026/cve-2026-97506.json",
      "version": "5"
    }
  }
}



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How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

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