CVE-2025-68284

libceph: prevent potential out-of-bounds writes in handle_auth_session_key()

State: Published
Severity: 9.8 Critical
Published: Dec 16, 2025
Updated: Oct 15, 2026
Reserved: Dec 16, 2025

Description

In the Linux kernel, the following vulnerability has been resolved:

libceph: prevent potential out-of-bounds writes in handle_auth_session_key()

The len field originates from untrusted network packets. Boundary checks have been added to prevent potential out-of-bounds writes when decrypting the connection secret or processing service tickets.

[ idryomov: changelog ]

Scores

CVSS	Score	Vector	Source
3.1	9.8 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	285ea34fc876aa0a2c5e65d310c4a41269e2e5f2 to before f22c55a20a2d9ffbbac57408d5d488cef8201e9dAffected 285ea34fc876aa0a2c5e65d310c4a41269e2e5f2 to before 8dfcc56af28cffb8f25fb9be37b3acc61f2a3d09Affected 285ea34fc876aa0a2c5e65d310c4a41269e2e5f2 to before ccbccfba25e9aa395daaea156b5e7790910054c4Affected 285ea34fc876aa0a2c5e65d310c4a41269e2e5f2 to before 5ef575834ca99f719d7573cdece9df2fe2b72424Affected 285ea34fc876aa0a2c5e65d310c4a41269e2e5f2 to before 6920ff09bf911bc919cd7a6b7176fbdd1a6e6850Affected 285ea34fc876aa0a2c5e65d310c4a41269e2e5f2 to before 7fce830ecd0a0256590ee37eb65a39cbad3d64fcAffected
LinuxLinux	5.11Affected before 5.11Not affected 5.15.197 through 5.15.Not affected 6.1.159 through 6.1.Not affected 6.6.119 through 6.6.Not affected 6.12.61 through 6.12.Not affected 6.17.11 through 6.17.*Not affected 6.18 and laterNot affected

Product

Versions

LinuxLinux

285ea34fc876aa0a2c5e65d310c4a41269e2e5f2 to before f22c55a20a2d9ffbbac57408d5d488cef8201e9dAffected
285ea34fc876aa0a2c5e65d310c4a41269e2e5f2 to before 8dfcc56af28cffb8f25fb9be37b3acc61f2a3d09Affected
285ea34fc876aa0a2c5e65d310c4a41269e2e5f2 to before ccbccfba25e9aa395daaea156b5e7790910054c4Affected
285ea34fc876aa0a2c5e65d310c4a41269e2e5f2 to before 5ef575834ca99f719d7573cdece9df2fe2b72424Affected
285ea34fc876aa0a2c5e65d310c4a41269e2e5f2 to before 6920ff09bf911bc919cd7a6b7176fbdd1a6e6850Affected
285ea34fc876aa0a2c5e65d310c4a41269e2e5f2 to before 7fce830ecd0a0256590ee37eb65a39cbad3d64fcAffected

LinuxLinux

5.11Affected
before 5.11Not affected
5.15.197 through 5.15.*Not affected
6.1.159 through 6.1.*Not affected
6.6.119 through 6.6.*Not affected
6.12.61 through 6.12.*Not affected
6.17.11 through 6.17.*Not affected
6.18 and laterNot affected

References

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