CVE-2026-80917: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-9v6f-6hx3-8xxj
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Advisory Summary

CVE-2026-80917 is a security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-80917 at a Glance

CVE Identifier CVE-2026-80917
GHSA Identifier GHSA-9v6f-6hx3-8xxj
Severity N/A
CVSS v3.1 Base Score N/A
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

How to Fix CVE-2026-80917

To remediate this vulnerability, upgrade all affected Software dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2026-80917, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree

Analyze the terminal output to locate any version of Software in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The mvn dependency:tree command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under General Security Weakness. In Software, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

In the Linux kernel, the following vulnerability has been resolved: PCI: host-generic: Fix NULL pointer dereference on 32-bit CAM systems On 32-bit systems the config space is too large to ioremap in one go, so pci_ecam_create() maps each bus segment separately and relies on the ->add_bus callback (pci_ecam_add_bus) to populate the per-bus mapping in cfg->winp[]. pci_ecam_map_bus() then uses that mapping as the base for every config access. The generic ECAM ops (pci_generic_ecam_ops) already provide the ->add_bus and ->remove_bus callbacks, but the CAM (legacy) ops in pci-host-generic.c do not. As a result, on a 32-bit host using "pci-host-cam-generic" the per-bus mapping is never set up and the first config read dereferences a NULL base, crashing during bus enumeration: Unable to handle kernel NULL pointer dereference at virtual address 00000800 Oops [#1] CPU: 0 PID: 1 Comm: swapper Not tainted 6.9.7+ #43 Hardware name: Digilent Nexys-Video-A7 RV32 (DT) epc : pci_generic_config_read+0x40/0xb0 ra : pci_generic_config_read+0x2c/0xb0 [<c038db9c>] pci_generic_config_read+0x40/0xb0 [<c038da04>] pci_bus_read_config_dword+0x50/0xb0 [<c0391e94>] pci_bus_generic_read_dev_vendor_id+0x3c/0x1ec [<c039245c>] pci_scan_single_device+0xa4/0x11c [<c0392570>] pci_scan_slot+0x9c/0x23c [<c039388c>] pci_scan_child_bus_extend+0x58/0x2f4 [<c0393db0>] pci_scan_root_bus_bridge+0x64/0xe8 [<c0393e54>] pci_host_probe+0x20/0xc8 [<c03bc6f4>] pci_host_common_probe+0x144/0x1e4 Fix this by giving the CAM ops the same ->add_bus/->remove_bus callbacks. Since pci_ecam_add_bus() and pci_ecam_remove_bus() are static to ecam.c, move the CAM ops definition there as pci_generic_cam_ops (mirroring pci_generic_ecam_ops) and export it for pci-host-generic.c to reference. [mani: removed timestamp from log]

References

NVD — CVE-2026-80917 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-80917
git.kernel.org/stable/c/008cb88edb... WEB
https://git.kernel.org/stable/c/008cb88edb41f3c7c8e0ed763ff9f26719830984
git.kernel.org/stable/c/0916948026... WEB
https://git.kernel.org/stable/c/0916948026f623844acd08888f7cbedbf1c48d6b
git.kernel.org/stable/c/0c55707bd5... WEB
https://git.kernel.org/stable/c/0c55707bd5d0d7670704cfd0dda933809b052f67
git.kernel.org/stable/c/5e52eb0290... WEB
https://git.kernel.org/stable/c/5e52eb0290f66ba0732956dcb1e365b5ca3c5108
git.kernel.org/stable/c/74456843f1... WEB
https://git.kernel.org/stable/c/74456843f18ba7f3045974d7e8b88ab993152b8c
git.kernel.org/stable/c/8d08713ec8... WEB
https://git.kernel.org/stable/c/8d08713ec83a18526d1ed1fd5f0d2b901d103a10
git.kernel.org/stable/c/a199293f30... WEB
https://git.kernel.org/stable/c/a199293f3038db8d31d47aa60f1e18272cd82354
git.kernel.org/stable/c/baf9b0383f... WEB
https://git.kernel.org/stable/c/baf9b0383ff770fdff123d3a832f3a99641d96dd

Frequently Asked Questions

What is CVE-2026-80917?
CVE-2026-80917 is a security vulnerability in Software classified as a security vulnerability vulnerability under General Security Weakness.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-80917?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-80917?
CVE-2026-80917 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-80917?
Run the dependency tree command: 'mvn dependency:tree'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-9v6f-6hx3-8xxj",
  "modified" : "2026-09-09T18:32:04Z",
  "published" : "2026-09-09T18:32:04Z",
  "aliases" : [ "CVE-2026-80917" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: host-generic: Fix NULL pointer dereference on 32-bit CAM systems\n\nOn 32-bit systems the config space is too large to ioremap in one go, so\npci_ecam_create() maps each bus segment separately and relies on the\n->add_bus callback (pci_ecam_add_bus) to populate the per-bus mapping in\ncfg->winp[]. pci_ecam_map_bus() then uses that mapping as the base for\nevery config access.\n\nThe generic ECAM ops (pci_generic_ecam_ops) already provide the ->add_bus\nand ->remove_bus callbacks, but the CAM (legacy) ops in pci-host-generic.c\ndo not. As a result, on a 32-bit host using \"pci-host-cam-generic\" the\nper-bus mapping is never set up and the first config read dereferences a\nNULL base, crashing during bus enumeration:\n\n Unable to handle kernel NULL pointer dereference at virtual address 00000800\n Oops [#1]\n CPU: 0 PID: 1 Comm: swapper Not tainted 6.9.7+ #43\n Hardware name: Digilent Nexys-Video-A7 RV32 (DT)\n epc : pci_generic_config_read+0x40/0xb0\n  ra : pci_generic_config_read+0x2c/0xb0\n [<c038db9c>] pci_generic_config_read+0x40/0xb0\n [<c038da04>] pci_bus_read_config_dword+0x50/0xb0\n [<c0391e94>] pci_bus_generic_read_dev_vendor_id+0x3c/0x1ec\n [<c039245c>] pci_scan_single_device+0xa4/0x11c\n [<c0392570>] pci_scan_slot+0x9c/0x23c\n [<c039388c>] pci_scan_child_bus_extend+0x58/0x2f4\n [<c0393db0>] pci_scan_root_bus_bridge+0x64/0xe8\n [<c0393e54>] pci_host_probe+0x20/0xc8\n [<c03bc6f4>] pci_host_common_probe+0x144/0x1e4\n\nFix this by giving the CAM ops the same ->add_bus/->remove_bus callbacks.\nSince pci_ecam_add_bus() and pci_ecam_remove_bus() are static to ecam.c,\nmove the CAM ops definition there as pci_generic_cam_ops (mirroring\npci_generic_ecam_ops) and export it for pci-host-generic.c to reference.\n\n[mani: removed timestamp from log]",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-80917"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/008cb88edb41f3c7c8e0ed763ff9f26719830984"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/0916948026f623844acd08888f7cbedbf1c48d6b"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/0c55707bd5d0d7670704cfd0dda933809b052f67"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/5e52eb0290f66ba0732956dcb1e365b5ca3c5108"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/74456843f18ba7f3045974d7e8b88ab993152b8c"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/8d08713ec83a18526d1ed1fd5f0d2b901d103a10"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/a199293f3038db8d31d47aa60f1e18272cd82354"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/baf9b0383ff770fdff123d3a832f3a99641d96dd"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-09T17:17:46Z"
  }
}