CVE-2026-22990

moderate-risk
Published 2026-01-23

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.

Do I need to act?

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0.01% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10 High
NETWORK / LOW complexity

Affected Products (12)

Affected Vendors

Linux

References (7)

Patch https://git.kernel.org/stable/c/4b106fbb1c7b841cd402abd83eb2447164c799ea
Patch https://git.kernel.org/stable/c/6348d70af847b79805374fe628d3809a63fd7df3
Patch https://git.kernel.org/stable/c/6afd2a4213524bc742b709599a3663aeaf77193c
Patch https://git.kernel.org/stable/c/6c6cec3db3b418c4fdf815731bc39e46dff75e1b
Patch https://git.kernel.org/stable/c/9aa0b0c14cefece078286d78b97d4c09685e372d
Patch https://git.kernel.org/stable/c/d3613770e2677683e65d062da5e31f48c409abe9
Patch https://git.kernel.org/stable/c/e00c3f71b5cf75681dbd74ee3f982a99cb690c2b
43
/ 100
moderate-risk
Severity 26/34 · High
Exploitability 0/34 · Minimal
Exposure 17/34 · Moderate