CVE-2025-38004

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: can: bcm: add locking for bcm_op runtime updates The CAN broadcast manager (CAN BCM) can send a sequence of CAN frames via hrtimer. The content and also the length of the sequence can be changed resp reduced at runtime where the 'currframe' counter is then set to zero. Although this appeared to be a safe operation the updates of 'currframe' can be triggered from user space and hrtimer context in bcm_can_tx(). Anderson Nascimento created a proof of concept that triggered a KASAN slab-out-of-bounds read access which can be pr...

Affected product and versions

Product

Linux Linux, linux kernel, debian linux

Affected versions

>= ffd980f976e7fd666c2e61bf8ab35107efd11828 < 8f1c022541bf5a923c8d6fa483112c15250f30a4, >= ffd980f976e7fd666c2e61bf8ab35107efd11828 < 7595de7bc56e0e52b74e56c90f7e247bf626d628, >= ffd980f976e7fd666c2e61bf8ab35107efd11828 < fbd8fdc2b218e979cfe422b139b8f74c12419d1f, >= ffd980f976e7fd666c2e61bf8ab35107efd11828 < 2a437b86ac5a9893c902f30ef66815bf13587bf6, >= ffd980f976e7fd666c2e61bf8ab35107efd11828 < 76c84c3728178b2d38d5604e399dfe8b0752645e, >= ffd980f976e7fd666c2e61bf8ab35107efd11828 < cc55dd28c20a6611e30596019b3b2f636819a4c0, >= ffd980f976e7fd666c2e61bf8ab35107efd11828 < c4e8a172501e677ebd8ea9d9161d97dc4df56fbd, >= ffd980f976e7fd666c2e61bf8ab35107efd11828 < c2aba69d0c36a496ab4f2e81e9c2b271f2693fd7, >= 2.6.25, >= 2.6.25 < 5.4.294, >= 5.5 < 5.10.238, >= 5.11 < 5.15.185, >= 5.16 < 6.1.141, >= 6.2 < 6.6.93, >= 6.7 < 6.12.31, >= 6.13 < 6.14.9, 6.15, 11.0

Fixed versions

5.4.294, 5.10.238, 5.15.185, 6.1.141, 6.6.93, 6.12.31, 6.14.9

Technical data

CVSS vector

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

CWE

CWE-125