CVE-2026-22990

libceph: replace overzealous BUG_ON in osdmap_apply_incremental()

State: Published
Severity: 7.5 High
Published: Jan 23, 2026
Updated: Oct 19, 2026
Reserved: Jan 13, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	Linux

Weaknesses

CWE-400 Uncontrolled Resource Consumption

Affected Products

Product	Versions
LinuxLinux	f24e9980eb860d8600cbe5ef3d2fd9295320d229 to before 9aa0b0c14cefece078286d78b97d4c09685e372dAffected f24e9980eb860d8600cbe5ef3d2fd9295320d229 to before 4b106fbb1c7b841cd402abd83eb2447164c799eaAffected f24e9980eb860d8600cbe5ef3d2fd9295320d229 to before 6afd2a4213524bc742b709599a3663aeaf77193cAffected f24e9980eb860d8600cbe5ef3d2fd9295320d229 to before d3613770e2677683e65d062da5e31f48c409abe9Affected f24e9980eb860d8600cbe5ef3d2fd9295320d229 to before 6c6cec3db3b418c4fdf815731bc39e46dff75e1bAffected f24e9980eb860d8600cbe5ef3d2fd9295320d229 to before 6348d70af847b79805374fe628d3809a63fd7df3Affected f24e9980eb860d8600cbe5ef3d2fd9295320d229 to before e00c3f71b5cf75681dbd74ee3f982a99cb690c2bAffected
LinuxLinux	2.6.34Affected before 2.6.34Not affected 5.10.248 through 5.10.Not affected 5.15.198 through 5.15.Not affected 6.1.161 through 6.1.Not affected 6.6.121 through 6.6.Not affected 6.12.66 through 6.12.Not affected 6.18.6 through 6.18.Not affected 6.19 and laterNot affected

Product

Versions

LinuxLinux

f24e9980eb860d8600cbe5ef3d2fd9295320d229 to before 9aa0b0c14cefece078286d78b97d4c09685e372dAffected
f24e9980eb860d8600cbe5ef3d2fd9295320d229 to before 4b106fbb1c7b841cd402abd83eb2447164c799eaAffected
f24e9980eb860d8600cbe5ef3d2fd9295320d229 to before 6afd2a4213524bc742b709599a3663aeaf77193cAffected
f24e9980eb860d8600cbe5ef3d2fd9295320d229 to before d3613770e2677683e65d062da5e31f48c409abe9Affected
f24e9980eb860d8600cbe5ef3d2fd9295320d229 to before 6c6cec3db3b418c4fdf815731bc39e46dff75e1bAffected
f24e9980eb860d8600cbe5ef3d2fd9295320d229 to before 6348d70af847b79805374fe628d3809a63fd7df3Affected
f24e9980eb860d8600cbe5ef3d2fd9295320d229 to before e00c3f71b5cf75681dbd74ee3f982a99cb690c2bAffected

LinuxLinux

2.6.34Affected
before 2.6.34Not affected
5.10.248 through 5.10.*Not affected
5.15.198 through 5.15.*Not affected
6.1.161 through 6.1.*Not affected
6.6.121 through 6.6.*Not affected
6.12.66 through 6.12.*Not affected
6.18.6 through 6.18.*Not affected
6.19 and laterNot affected

References

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