CVE-2026-98682: Linux kernel · smb: client: drain and invalidate before server-side copy/clone
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in dc71660f11ef2fecc0695a41e49cd496a9d255ab : patch Linux kernel soon.
Data as of 26 Oct 2026, 10:12 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 4% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in dc71660f11ef2fecc0695a41e49cd496a9d255ab, c9b1194e8ec99d95db25db45edd2fbf690f043ab, 6.7 +1
Exploitation evidence
Disclosed: evidence found.
CVE published 18 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
Upgrade Linux kernel to dc71660f11ef2fecc0695a41e49cd496a9d255ab, c9b1194e8ec99d95db25db45edd2fbf690f043ab, 6.7 or 6.2.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in– |
AI-suggested
This vulnerability has been fixed in Linux kernel versions 6.2, 6.7, and later. Users should upgrade to these or newer versions to remediate the issue. No additional mitigation is required as the fix addresses the root cause.
Description
A Linux kernel vulnerability in the SMB client affects server-side copy and clone operations. The flaw involves improper serialization of the destination page cache during these operations, leading to potential file corruption due to stale data being written after the server-side copy completes. This issue has been fixed in Linux kernel versions 6.2, 6.7, and later.