CVE-2026-72118: Linux kernel · can: bcm: fix CAN frame rx/tx statistics
Affects Linux kernelSource GCVE Database
Not known to be exploited · fixed in 5.15.0-1117.124~20.04.1 : update Linux kernel when convenient.
Data as of 26 Oct 2026, 14:05 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 11% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 5.15.0-1117.124~20.04.1, 5.15.0-1123.132~20.04.1, 5.15.0-1122.131~20.04.1 +42
Exploitation evidence
Disclosed: evidence found.
CVE published 15 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-azure-fdepkg:deb/ubuntu/linux-azure-fde?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-gkepkg:deb/ubuntu/linux-gke?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A patch is available that fixes the data race by using atomic operations and proper locking in the CAN BCM subsystem. Users should apply the official Linux kernel updates that include this fix. No additional mitigation actions are required beyond applying the patch.
Description
A data race vulnerability in the Linux kernel's CAN BCM subsystem was fixed. The issue involved concurrent processing of CAN frames on multiple CPUs leading to incorrect CAN frame receive/transmit statistics due to unsynchronized access. The fix uses atomic operations and locking to prevent race conditions and ensure accurate statistics updates.
References
- nvd.nist.gov/vuln/detail/CVE-2026-72118 (opens in a new tab)
- git.kernel.org/stable/c/8104bcdb2612fdda95169ddc3b49747b2ff98d24 (opens in a new tab)
- git.kernel.org/stable/c/8b2783172d92edd650de6006ebd1c800937021ab (opens in a new tab)
- git.kernel.org/stable/c/970caff5c1a63702c80e08d920256bcb5f88ecc5 (opens in a new tab)
- git.kernel.org/stable/c/df47f07cdc801a6afe05a486b5a343c3e532a93c (opens in a new tab)
- git.kernel.org/stable/c/e6c24ba95fc3f1b5e1dcd28b1c6e59ef61a9daa5 (opens in a new tab)
- ubuntu.com/security/CVE-2026-72118 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-72118 (opens in a new tab)
- git.kernel.org/linus/e6c24ba95fc3f1b5e1dcd28b1c6e59ef61a9daa5 (opens in a new tab)
- ubuntu.com/security/notices/USN-8876-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8878-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8879-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8877-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8875-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8888-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8889-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8887-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8886-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8888-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8887-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8875-2 (opens in a new tab)