CVE-2026-22990

High

Description

In the Linux kernel, the following vulnerability has been resolved: libceph: replace overzealous BUG_ON in osdmap_apply_incremental() If the osdmap is (maliciously) corrupted such that the incremental osdmap epoch is different from what is expected, there is no need to BUG. Instead, just declare the incremental osdmap to be invalid.

SeverityHigh
CVSS7.5
Exploit probability—
ProductLinux Kernel
PublishedJan 23, 2026
First seenJan 23, 2026

How to fix

Update
  • linux linux_kernel5.10.248, 5.15.198, 6.1.161, 6.6.121, 6.12.66, 6.18.6 or later

Affected products

ProductAffected versionsFixed in
linux linux_kernel2.6.34.1 ≤ v < 5.10.248, 5.11 ≤ v < 5.15.198, 5.16 ≤ v < 6.1.161, 6.2 ≤ v < 6.6.121, 6.7 ≤ v < 6.12.66, 6.13 ≤ v < 6.18.6, 2.6.34, 6.195.10.248, 5.15.198, 6.1.161, 6.6.121, 6.12.66, 6.18.6

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