What is CVE-2026-45892?

CVE-2026-45892 is a medium-severity vulnerability in Linux. CVSS score: 5.5/10. Published 2026-05-27.

How severe is CVE-2026-45892?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Linux

CVE-2026-45892

In the Linux kernel, the following vulnerability has been resolved: ext4: drop extent cache after doing PARTIAL_VALID1 zeroout When splitting an unwritten extent in the middle and converting it to initialized in ext4_split_extent() with…

EPSS: 0.002 (5.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Linux — versions 6.1.167, 6.19.4, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Linux Linux_kernel — versions 6.1.167

References

416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)

Frequently asked questions

What is CVE-2026-45892?: CVE-2026-45892 is a medium-severity vulnerability in Linux. CVSS score: 5.5/10. Published 2026-05-27.
How severe is CVE-2026-45892?: Medium severity. CVSS v3 base score is 5.5 out of 10.