CVE-2026-98382: Linux kernel · bpf: Reject dev-bound-only programs on other devices
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 7.8 High.
Data as of 26 Oct 2026, 12:55 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 5% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 9 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-azure-fdepkg:deb/ubuntu/linux-azure-fde?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-gkepkg:deb/ubuntu/linux-gke?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A fix has been implemented in the Linux kernel to restrict non-offloaded BPF programs to exact network device matches, preventing the fallback that caused mismatches. Users should apply the updated kernel versions that include this fix. Since this is a kernel-level vulnerability, upgrading to patched kernel releases is the recommended remediation.
Description
A vulnerability in the Linux kernel's BPF subsystem allows programs bound to specific network devices to be incorrectly matched to other devices. This can cause kernel crashes due to invalid memory accesses when running certain BPF programs on mismatched network devices. The issue arises from improper handling of device-bound BPF programs, leading to potential kernel panics and general protection faults.
References
- ubuntu.com/security/CVE-2026-98382 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-98382 (opens in a new tab)
- git.kernel.org/stable/c/0dceda331180617aeeb22381e8480b37f18ba08b (opens in a new tab)
- git.kernel.org/stable/c/6db1ce73e9853f533eb7f413f14ba00f8ec6f80d (opens in a new tab)
- git.kernel.org/stable/c/940b626854de200e6187777d42114727daca617c (opens in a new tab)
- git.kernel.org/stable/c/bb375f3c5990e29851894f20ebc4b9dbc6676126 (opens in a new tab)
- git.kernel.org/stable/c/e57f04194361574493e3e6cf0b9e9c69e4ae9791 (opens in a new tab)