CVE-2026-98007: Linux kernel · bpf: Reject non-scalar bpf_loop iteration counts
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in f8ae8275c721334ee50fafdd986fb83294eb941a : patch Linux kernel soon.
Data as of 26 Oct 2026, 14:05 UTC
Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 6% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in f8ae8275c721334ee50fafdd986fb83294eb941a, e2e1161e03fecff6d2229a81b024337144bfcd97, c3fd8e5fd100f122bad503bdc0e9277219533253 +3
Exploitation evidence
Disclosed: evidence found.
CVE published 25 Sep 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
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in– |
AI-suggested
A fix is available in Linux kernel version 6.6.158 and later, as well as in version 6.7. Users should upgrade to these fixed versions to remediate the vulnerability. No additional mitigation steps are indicated or required.
Description
A vulnerability in the Linux kernel's bpf_loop helper allowed non-scalar iteration counts to be passed, which could cause kernel panics on systems with panic_on_warn enabled. The issue arises because bpf_loop's nr_loops argument was declared as ARG_ANYTHING, permitting pointer values that lead to verifier warnings and potential kernel panic. This has been fixed by introducing ARG_SCALAR for the nr_loops argument to reject pointers before processing.
References
- git.kernel.org/stable/c/2ff38b3552af53238aee6c877ae64cc798d46fce (opens in a new tab)
- git.kernel.org/stable/c/656d40d1ca228ee21a9b3280432479fc9eae75ab (opens in a new tab)
- git.kernel.org/stable/c/e2e1161e03fecff6d2229a81b024337144bfcd97 (opens in a new tab)
- git.kernel.org/stable/c/f8ae8275c721334ee50fafdd986fb83294eb941a (opens in a new tab)
- git.kernel.org/stable/c/c3fd8e5fd100f122bad503bdc0e9277219533253 (opens in a new tab)