CVE-2026-98409: Linux kernel · watchdog: rtd119x: Avoid division by zero
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in b4ede87765a2e58ca4f18f5f8037c4826b9cc93f : update Linux kernel when convenient.
Data as of 26 Oct 2026, 14:05 UTC
Rated Medium by Threat Radar's AI analysis · CVSS not yet scored by NVD
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 10% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in b4ede87765a2e58ca4f18f5f8037c4826b9cc93f, 757c721545b9ffac5c3042a0cd3685ea28af7e81, 8a12e049d517d7dee78500633f8f0e47262a67e0 +2
Exploitation evidence
Disclosed: evidence found.
CVE published 14 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 to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in– |
AI-suggested
A fix is available in the Linux kernel as indicated by the listed fixed commit hashes. Users and administrators should update to a Linux kernel version that includes these fixes to prevent the division by zero panic.
Description
A division by zero vulnerability was identified and resolved in the Linux kernel watchdog driver for rtd119x. The issue arose because clk_get_rate() could return zero, leading to a potential kernel panic due to division by zero.
References
- git.kernel.org/stable/c/757c721545b9ffac5c3042a0cd3685ea28af7e81 (opens in a new tab)
- git.kernel.org/stable/c/1f22001b34984350844d629862f70934770cb796 (opens in a new tab)
- git.kernel.org/stable/c/b4ede87765a2e58ca4f18f5f8037c4826b9cc93f (opens in a new tab)
- git.kernel.org/stable/c/8a12e049d517d7dee78500633f8f0e47262a67e0 (opens in a new tab)
- git.kernel.org/stable/c/5af7d2cbd20f893def03c8310a460ade66a5d822 (opens in a new tab)