CVE-2026-98176

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Avoid integer underflow with ffs in EOP ring size calc The low 6 bits of cp_hqd_eop_control store the base-2 logarithm of the EOP ring size. This was calculated as ffs(q->eop_ring_buffer_size / sizeof(unsigned int)) - 1 - 1 But ffs can in theory return 1 or 0, so this could underflow (although in practice the ring buffer size cannot be less than 4096). Change this to ffs(q->eop_ring_buffer_size / sizeof(unsigned int) / 4) using properties of logarithms. (cherry picked from commit 4f18c56630383c14bfc6b2d65f88f2f895d2121a)

Package Linux Kernel
Published 2026-10-06
Last modified 2026-10-07
Patch available
Yes

Affected versions

Linux kernel versions 5.3 and later are affected. Fixed in 7.2.8, 7.3-rc4 and their respective stable series.

Affected from
≥ 5.3
Fixed in
✓ 7.2.8 7.2.x ✓ 7.3-rc4

References

2 total

Frequently asked questions

  • What is CVE-2026-98176?

    CVE-2026-98176 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 5.3 onward and has been patched in 7.2.8 and 7.3-rc4. CVE-2026-98176 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • Is there a patch available for CVE-2026-98176?

    Yes. CVE-2026-98176 has been patched. Fixed versions include 7.2.8 and 7.3-rc4. If you are running Linux kernel 5.3 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2026-98176 actively exploited?

    No. CVE-2026-98176 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

Back to
All CVEs
View on
NVD / NIST