CVE-2026-98408
Linux: watchdog: rzv2h: Avoid division by zero
Linux LinuxOperating systemsCVSS
NoneNot scoredExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.21%Chance of exploitation activity in the next 30 days, higher than 10% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in0dd78d9d9b546de08e2ae391541f48cea0a9b842Also 6274281c41efa8dd1aa5234c59ad904ff89d7af4CVE List
What fixes it
- 0dd78d9d9b546de08e2ae391541f48cea0a9b842LinuxCVE List
- 6274281c41efa8dd1aa5234c59ad904ff89d7af4LinuxCVE List
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
Description
In the Linux kernel, the following vulnerability has been resolved:
watchdog: rzv2h: Avoid division by zero
clk_get_rate() could return 0. Avoid a division by zero panic.
Text from CVE List
Affected versions 8
- Linuxaffected: f6febd0a30b6e299a08076116256e3b36c24eada before eb14ee406e1d0fbbfb857f0eaa710daa8c2dc30eCVE List
- Linuxaffected: f6febd0a30b6e299a08076116256e3b36c24eada before 0dd78d9d9b546de08e2ae391541f48cea0a9b842CVE List
- Linuxaffected: f6febd0a30b6e299a08076116256e3b36c24eada before 6274281c41efa8dd1aa5234c59ad904ff89d7af4CVE List
- Linuxaffected: 6.12CVE List
- Linuxunaffected: all versions before 6.12CVE List
- Linuxunaffected: 6.18.54 through 6.18.*CVE List
- Linuxunaffected: 7.2.8 through 7.2.*CVE List
- Linuxunaffected: 7.3CVE List