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CVE-2026-72114

can: bcm: validate frame length in bcm_rx_setup() for RTR replies

HIGH
7.8
CVSS Score
Published: August 15, 2026 at 05:52 AM UTC
Updated: October 16, 2026 at 07:17 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: can: bcm: validate frame length in bcm_rx_setup() for RTR replies bcm_tx_setup() validates cf->len against the CAN/CAN FD DLC limits before installing frames for TX_SETUP, but bcm_rx_setup() never did the same for the RTR-reply frame configured via RX_SETUP with RX_RTR_FRAME.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
90%
2.6.25ffd980f976e7fd666c2e61bf8ab35107efd11828
Vendor states this is fixed in 1b475c0c72f44622a320a4386ce9e76f85e69bc7 (fixed)
Vendor states this is fixed in 204f2b232717bc470ddb9e1da1d27dd9c6ef0caa (fixed)
Vendor states this is fixed in 59bfddea64159594feb62ef11b7d7a33c8ee3783 (fixed)
Vendor states this is fixed in 62ec41f364648be79d54d94d0d240ee326948afd (fixed)
Vendor states this is fixed in 7d966cdee006911d3957e1a4e72cb93c39cd8c1e (fixed)
Vendor states this is fixed in cc1f9569f1c1adf74fa69d6f716a31b58a2fc6ce (fixed)
Vendor states this is fixed in deb6a697cce3f021e731df543597f37a5e54caab (fixed)
Vendor states this is fixed in e061624c0a86c3c26a2bf017e432fbc93ad68f3a (fixed)
Vendor states this is fixed in 2.6.25 (unaffected)
Vendor states this is fixed in 5.10.265 (unaffected)
Vendor states this is fixed in 5.15.216 (unaffected)
Vendor states this is fixed in 6.1.183 (unaffected)
Vendor states this is fixed in 6.12.101 (unaffected)
Vendor states this is fixed in 6.18.42 (unaffected)
Vendor states this is fixed in 6.6.148 (unaffected)
Vendor states this is fixed in 7.1.5 (unaffected)
Vendor states this is fixed in 7.2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (8)

Source: cverecord
https://git.kernel.org/stable/c/7d966cdee006911d3957e1a4e72cb93c39cd8c1e
Source: cverecord
https://git.kernel.org/stable/c/1b475c0c72f44622a320a4386ce9e76f85e69bc7
Source: cverecord
https://git.kernel.org/stable/c/deb6a697cce3f021e731df543597f37a5e54caab
Source: cverecord
https://git.kernel.org/stable/c/59bfddea64159594feb62ef11b7d7a33c8ee3783
Source: cverecord
https://git.kernel.org/stable/c/62ec41f364648be79d54d94d0d240ee326948afd
Source: cverecord
https://git.kernel.org/stable/c/cc1f9569f1c1adf74fa69d6f716a31b58a2fc6ce
Source: cverecord
https://git.kernel.org/stable/c/204f2b232717bc470ddb9e1da1d27dd9c6ef0caa
Source: cverecord
https://git.kernel.org/stable/c/e061624c0a86c3c26a2bf017e432fbc93ad68f3a

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHLinux
Vector?

Quick Info

StatusRECEIVED

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