High 7.5Published Jan 23, 2026

CVE-2026-22990libceph: replace overzealous BUG_ON in osdmap_apply_incremental()

Updated under an hour ago (Oct 27, 2026, 8:00 AM ET)

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Exploited in the last 30 days

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.

CVSS: 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-400
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Modified
Record last updated: Oct 19, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from f24e9980eb860d8600cbe5ef3d2fd9295320d229 before 9aa0b0c14cefece078286d78b97d4c09685e372d; from f24e9980eb860d8600cbe5ef3d2fd9295320d229 before 4b106fbb1c7b841cd402abd83eb2447164c799ea; from f24e9980eb860d8600cbe5ef3d2fd9295320d229 before 6afd2a4213524bc742b709599a3663aeaf77193c; from f24e9980eb860d8600cbe5ef3d2fd9295320d229 before d3613770e2677683e65d062da5e31f48c409abe9; from f24e9980eb860d8600cbe5ef3d2fd9295320d229 before 6c6cec3db3b418c4fdf815731bc39e46dff75e1b; from f24e9980eb860d8600cbe5ef3d2fd9295320d229 before 6348d70af847b79805374fe628d3809a63fd7df3; from f24e9980eb860d8600cbe5ef3d2fd9295320d229 before e00c3f71b5cf75681dbd74ee3f982a99cb690c2b	CNA record
linux linux_kernel linux:linux_kernel	from 2.6.34.1 before 5.10.248; from 5.11 before 5.15.198; from 5.16 before 6.1.161; from 6.2 before 6.6.121; from 6.7 before 6.12.66; from 6.13 before 6.18.6; 2.6.34; 2.6.34; and 9 more ranges	NVD

References

References

https://git.kernel.org/stable/c/9aa0b0c14cefece078286d78b97d4c09685e372d	patch
https://git.kernel.org/stable/c/4b106fbb1c7b841cd402abd83eb2447164c799ea	patch
https://git.kernel.org/stable/c/6afd2a4213524bc742b709599a3663aeaf77193c	patch
https://git.kernel.org/stable/c/d3613770e2677683e65d062da5e31f48c409abe9	patch
https://git.kernel.org/stable/c/6c6cec3db3b418c4fdf815731bc39e46dff75e1b	patch
https://git.kernel.org/stable/c/6348d70af847b79805374fe628d3809a63fd7df3	patch
https://git.kernel.org/stable/c/e00c3f71b5cf75681dbd74ee3f982a99cb690c2b	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.