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7.8
HIGH CVSS 3.1
CVE-2026-72119
can: bcm: extend bcm_tx_lock usage for data and timer updates
Overview
Description

In the Linux kernel, the following vulnerability has been resolved: can: bcm: extend bcm_tx_lock usage for data and timer updates Stage new CAN frame content for an existing tx op into a kmalloc()'d buffer and validate it there, mirroring the approach already used in bcm_rx_setup(). Only copy the validated data into op->frames while holding op->bcm_tx_lock, so bcm_can_tx() and bcm_tx_timeout_handler() can no longer observe a partially updated or unvalidated frame. Add a missing error path for memcpy_from_msg() when copying CAN frame data from userspace. Also move the kt_ival1/kt_ival2/ival1/ival2 updates in bcm_tx_setup() under op->bcm_tx_lock, and read kt_ival1/kt_ival2/count under the same lock in bcm_tx_set_expiry() and bcm_tx_timeout_handler(), closing the torn 64-bit ktime_t read on 32-bit platforms.

Details
INFO

Published Date :

Aug. 15, 2026, 6:21 a.m.

Last Modified :

Aug. 17, 2026, 6:18 a.m.

Remotely Exploit :

No

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Impact
Affected Products

The following products are affected by CVE-2026-72119 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
Scoring
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 HIGH 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Solution
Update the Linux kernel to patch a vulnerability related to CAN frame handling.
  • Update the Linux kernel to the latest version.
  • Apply vendor-provided patches for the CAN subsystem.
  • Ensure frame data is validated before copying.
  • Protect shared data with appropriate locks.
References
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-72119.

URL Resource
https://git.kernel.org/stable/c/12ce799f7ab1e05bd8fbf79e46f403bfe5597ebc
https://git.kernel.org/stable/c/337f966c00662d81ad82cf5a4bbb150b2e32c0d4
https://git.kernel.org/stable/c/52f06e7603780de100233713ddaf971d422e10ef
https://git.kernel.org/stable/c/972fd66bb08fdef1090abe43196ca8da07216d13
https://git.kernel.org/stable/c/bd46f55dec608daa44b45dcf3328517630ad8e40
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-72119 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-72119 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-72119 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2026-72119 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Aug. 17, 2026

    Action Type Old Value New Value
    Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Changed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '76c84c3728178b2d38d5604e399dfe8b0752645e', 'lessThan': '52f06e7603780de100233713ddaf971d422e10ef', 'versionType': 'git'}, {'status': 'affected', 'version': 'cc55dd28c20a6611e30596019b3b2f636819a4c0', 'lessThan': '972fd66bb08fdef1090abe43196ca8da07216d13', 'versionType': 'git'}, {'status': 'affected', 'version': 'c2aba69d0c36a496ab4f2e81e9c2b271f2693fd7', 'lessThan': 'bd46f55dec608daa44b45dcf3328517630ad8e40', 'versionType': 'git'}, {'status': 'affected', 'version': 'c2aba69d0c36a496ab4f2e81e9c2b271f2693fd7', 'lessThan': '337f966c00662d81ad82cf5a4bbb150b2e32c0d4', 'versionType': 'git'}, {'status': 'affected', 'version': 'c2aba69d0c36a496ab4f2e81e9c2b271f2693fd7', 'lessThan': '12ce799f7ab1e05bd8fbf79e46f403bfe5597ebc', 'versionType': 'git'}, {'status': 'affected', 'version': '8f1c022541bf5a923c8d6fa483112c15250f30a4', 'versionType': 'git'}, {'status': 'affected', 'version': '7595de7bc56e0e52b74e56c90f7e247bf626d628', 'versionType': 'git'}, {'status': 'affected', 'version': 'fbd8fdc2b218e979cfe422b139b8f74c12419d1f', 'versionType': 'git'}, {'status': 'affected', 'version': '2a437b86ac5a9893c902f30ef66815bf13587bf6', 'versionType': 'git'}, {'status': 'affected', 'version': 'c4e8a172501e677ebd8ea9d9161d97dc4df56fbd', 'versionType': 'git'}, {'status': 'affected', 'version': '6.6.93', 'lessThan': '6.6.148', 'versionType': 'semver'}, {'status': 'affected', 'version': '6.12.31', 'lessThan': '6.12.101', 'versionType': 'semver'}, {'status': 'affected', 'version': '5.4.294', 'lessThan': '5.5', 'versionType': 'semver'}, {'status': 'affected', 'version': '5.10.238', 'lessThan': '5.11', 'versionType': 'semver'}, {'status': 'affected', 'version': '5.15.185', 'lessThan': '5.16', 'versionType': 'semver'}, {'status': 'affected', 'version': '6.1.141', 'lessThan': '6.2', 'versionType': 'semver'}, {'status': 'affected', 'version': '6.14.9', 'lessThan': '6.15', 'versionType': 'semver'}], 'programFiles': ['net/can/bcm.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.15'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.15', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.148', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.42', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc4', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['net/can/bcm.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '76c84c3728178b2d38d5604e399dfe8b0752645e', 'lessThan': '52f06e7603780de100233713ddaf971d422e10ef', 'versionType': 'git'}, {'status': 'affected', 'version': 'cc55dd28c20a6611e30596019b3b2f636819a4c0', 'lessThan': '972fd66bb08fdef1090abe43196ca8da07216d13', 'versionType': 'git'}, {'status': 'affected', 'version': 'c2aba69d0c36a496ab4f2e81e9c2b271f2693fd7', 'lessThan': 'bd46f55dec608daa44b45dcf3328517630ad8e40', 'versionType': 'git'}, {'status': 'affected', 'version': 'c2aba69d0c36a496ab4f2e81e9c2b271f2693fd7', 'lessThan': '337f966c00662d81ad82cf5a4bbb150b2e32c0d4', 'versionType': 'git'}, {'status': 'affected', 'version': 'c2aba69d0c36a496ab4f2e81e9c2b271f2693fd7', 'lessThan': '12ce799f7ab1e05bd8fbf79e46f403bfe5597ebc', 'versionType': 'git'}, {'status': 'affected', 'version': '8f1c022541bf5a923c8d6fa483112c15250f30a4', 'versionType': 'git'}, {'status': 'affected', 'version': '7595de7bc56e0e52b74e56c90f7e247bf626d628', 'versionType': 'git'}, {'status': 'affected', 'version': 'fbd8fdc2b218e979cfe422b139b8f74c12419d1f', 'versionType': 'git'}, {'status': 'affected', 'version': '2a437b86ac5a9893c902f30ef66815bf13587bf6', 'versionType': 'git'}, {'status': 'affected', 'version': 'c4e8a172501e677ebd8ea9d9161d97dc4df56fbd', 'versionType': 'git'}, {'status': 'affected', 'version': '6.6.93', 'lessThan': '6.6.148', 'versionType': 'semver'}, {'status': 'affected', 'version': '6.12.31', 'lessThan': '6.12.101', 'versionType': 'semver'}, {'status': 'affected', 'version': '5.4.294', 'lessThan': '5.5', 'versionType': 'semver'}, {'status': 'affected', 'version': '5.10.238', 'lessThan': '5.11', 'versionType': 'semver'}, {'status': 'affected', 'version': '5.15.185', 'lessThan': '5.16', 'versionType': 'semver'}, {'status': 'affected', 'version': '6.1.141', 'lessThan': '6.2', 'versionType': 'semver'}, {'status': 'affected', 'version': '6.14.9', 'lessThan': '6.15', 'versionType': 'semver'}], 'programFiles': ['net/can/bcm.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.15'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.15', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.148', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.42', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['net/can/bcm.c'], 'defaultStatus': 'affected'}]
  • New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Aug. 15, 2026

    Action Type Old Value New Value
    Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '76c84c3728178b2d38d5604e399dfe8b0752645e', 'lessThan': '52f06e7603780de100233713ddaf971d422e10ef', 'versionType': 'git'}, {'status': 'affected', 'version': 'cc55dd28c20a6611e30596019b3b2f636819a4c0', 'lessThan': '972fd66bb08fdef1090abe43196ca8da07216d13', 'versionType': 'git'}, {'status': 'affected', 'version': 'c2aba69d0c36a496ab4f2e81e9c2b271f2693fd7', 'lessThan': 'bd46f55dec608daa44b45dcf3328517630ad8e40', 'versionType': 'git'}, {'status': 'affected', 'version': 'c2aba69d0c36a496ab4f2e81e9c2b271f2693fd7', 'lessThan': '337f966c00662d81ad82cf5a4bbb150b2e32c0d4', 'versionType': 'git'}, {'status': 'affected', 'version': 'c2aba69d0c36a496ab4f2e81e9c2b271f2693fd7', 'lessThan': '12ce799f7ab1e05bd8fbf79e46f403bfe5597ebc', 'versionType': 'git'}, {'status': 'affected', 'version': '8f1c022541bf5a923c8d6fa483112c15250f30a4', 'versionType': 'git'}, {'status': 'affected', 'version': '7595de7bc56e0e52b74e56c90f7e247bf626d628', 'versionType': 'git'}, {'status': 'affected', 'version': 'fbd8fdc2b218e979cfe422b139b8f74c12419d1f', 'versionType': 'git'}, {'status': 'affected', 'version': '2a437b86ac5a9893c902f30ef66815bf13587bf6', 'versionType': 'git'}, {'status': 'affected', 'version': 'c4e8a172501e677ebd8ea9d9161d97dc4df56fbd', 'versionType': 'git'}, {'status': 'affected', 'version': '6.6.93', 'lessThan': '6.6.148', 'versionType': 'semver'}, {'status': 'affected', 'version': '6.12.31', 'lessThan': '6.12.101', 'versionType': 'semver'}, {'status': 'affected', 'version': '5.4.294', 'lessThan': '5.5', 'versionType': 'semver'}, {'status': 'affected', 'version': '5.10.238', 'lessThan': '5.11', 'versionType': 'semver'}, {'status': 'affected', 'version': '5.15.185', 'lessThan': '5.16', 'versionType': 'semver'}, {'status': 'affected', 'version': '6.1.141', 'lessThan': '6.2', 'versionType': 'semver'}, {'status': 'affected', 'version': '6.14.9', 'lessThan': '6.15', 'versionType': 'semver'}], 'programFiles': ['net/can/bcm.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.15'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.15', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.148', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.42', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc4', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['net/can/bcm.c'], 'defaultStatus': 'affected'}]
    Added Description In the Linux kernel, the following vulnerability has been resolved: can: bcm: extend bcm_tx_lock usage for data and timer updates Stage new CAN frame content for an existing tx op into a kmalloc()'d buffer and validate it there, mirroring the approach already used in bcm_rx_setup(). Only copy the validated data into op->frames while holding op->bcm_tx_lock, so bcm_can_tx() and bcm_tx_timeout_handler() can no longer observe a partially updated or unvalidated frame. Add a missing error path for memcpy_from_msg() when copying CAN frame data from userspace. Also move the kt_ival1/kt_ival2/ival1/ival2 updates in bcm_tx_setup() under op->bcm_tx_lock, and read kt_ival1/kt_ival2/count under the same lock in bcm_tx_set_expiry() and bcm_tx_timeout_handler(), closing the torn 64-bit ktime_t read on 32-bit platforms.
    Added Reference https://git.kernel.org/stable/c/12ce799f7ab1e05bd8fbf79e46f403bfe5597ebc
    Added Reference https://git.kernel.org/stable/c/337f966c00662d81ad82cf5a4bbb150b2e32c0d4
    Added Reference https://git.kernel.org/stable/c/52f06e7603780de100233713ddaf971d422e10ef
    Added Reference https://git.kernel.org/stable/c/972fd66bb08fdef1090abe43196ca8da07216d13
    Added Reference https://git.kernel.org/stable/c/bd46f55dec608daa44b45dcf3328517630ad8e40
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CVSS
Vulnerability Scoring Details
Base CVSS Score: 7.8
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact