CVE-2026-80736
- Source
- https://cve.org/CVERecord?id=CVE-2026-80736
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80736.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-80736
- Downstream
- Published
- 2026-09-03T08:21:51.946Z
- Modified
- 2026-09-05T03:48:34.253980927Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- thunderbolt: Fix bandwidth group reservation indexing
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
thunderbolt: Fix bandwidth group reservation indexing
Valid bandwidth group IDs range from 1 through MAXGROUPS, while Group ID 0 is reserved. tbconsumeddpbandwidth() uses the Group ID directly to index its local group_reserved[] array.
The array currently has MAXGROUPS entries, so its valid indices are 0 through MAXGROUPS - 1. Group ID MAX_GROUPS therefore accesses one element past the end, and the final group's reserved bandwidth is not included when the array is summed.
Give groupreserved[] MAXGROUPS + 1 entries so direct Group ID indexing covers the reserved ID 0 and valid IDs 1 through MAX_GROUPS.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80736.json", "cna_assigner": "Linux" }- References
-
- https://git.kernel.org/stable/c/0a8c9ed4f166216642a8c084f0de415169c88088
- https://git.kernel.org/stable/c/0bfb67ba366cd68d1d0ad935760577bae1d5df27
- https://git.kernel.org/stable/c/9977321835c7ae71d12a43bed7baa5bd514d01c3
- https://git.kernel.org/stable/c/d2ee4d47aacbd2ba456092eeec670dba35fde291
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80736.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-80736
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced52a4490e89d7c4effe613d8dffd2ac0a2a786bd7Fixed0bfb67ba366cd68d1d0ad935760577bae1d5df27Fixed9977321835c7ae71d12a43bed7baa5bd514d01c3Fixed0a8c9ed4f166216642a8c084f0de415169c88088Fixedd2ee4d47aacbd2ba456092eeec670dba35fde291