CVE-2025-38708

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: drbd: add missing kref_get in handle_write_conflicts With `two-primaries` enabled, DRBD tries to detect "concurrent" writes and handle write conflicts, so that even if you write to the same sector simultaneously on both nodes, they end up with the identical data once the writes are completed. In handling "superseeded" writes, we forgot a kref_get, resulting in a premature drbd_destroy_device and use after free, and further to kernel crashes with symptoms. Relevance: No one should use DRBD as a random data generator, and app...

Affected product and versions

Product

Linux Linux, SIMATIC CN 4100, SIMATIC S7-1500 CPU 1518-4 PN/DP MFP

Affected versions

>= 668700b40a7c8727bbd2b3fd4fd22e0ce3f1aeb6 < 0336bfe9c237476bd7c45605a36ca79c2bca62e5, >= 668700b40a7c8727bbd2b3fd4fd22e0ce3f1aeb6 < 810cd546a29bfac90ed1328ea01d693d4bd11cb1, >= 668700b40a7c8727bbd2b3fd4fd22e0ce3f1aeb6 < 84ef8dd3238330d1795745ece83b19f0295751bf, >= 668700b40a7c8727bbd2b3fd4fd22e0ce3f1aeb6 < 57418de35420cedab035aa1da8a26c0499b7f575, >= 668700b40a7c8727bbd2b3fd4fd22e0ce3f1aeb6 < 9f53b2433ad248cd3342cc345f56f5c7904bd8c4, >= 668700b40a7c8727bbd2b3fd4fd22e0ce3f1aeb6 < 7d483ad300fc0a06f69b019dda8f74970714baf8, >= 668700b40a7c8727bbd2b3fd4fd22e0ce3f1aeb6 < 46e3763dcae0ffcf8fcfaff4fc10a90a92ffdd89, >= 668700b40a7c8727bbd2b3fd4fd22e0ce3f1aeb6 < 3a896498f6f577e57bf26aaa93b48c22b6d20c20, >= 668700b40a7c8727bbd2b3fd4fd22e0ce3f1aeb6 < 00c9c9628b49e368d140cfa61d7df9b8922ec2a8, >= 4.5, < V5.0, >= V3.1.5, >= 4.5 < 5.4.297, >= 5.5 < 5.10.241, >= 5.11 < 5.15.190, >= 5.16 < 6.1.149, >= 6.2 < 6.6.103, >= 6.7 < 6.12.43, >= 6.13 < 6.15.11, >= 6.16 < 6.16.2

Fixed versions

5.4.297, 5.10.241, 5.15.190, 6.1.149, 6.6.103, 6.12.43, 6.15.11, 6.16.2

Technical data

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-416