CVE-2026-72501: Linux kernel · RDMA/bnxt_re: Initialize dpi variable to zero
Affects Linux kernelSource GCVE Database
Not known to be exploited · fixed in 7.0.0-1013.13~24.04.1 : update Linux kernel when convenient.
Data as of 26 Oct 2026, 12:55 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 10% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 7.0.0-1013.13~24.04.1, 7.0.0-1017.17~24.04.1, 7.0.0-1016.16~24.04.1 +12
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 and included in the Linux kernel security updates distributed by vendors such as Ubuntu. Users should apply the official kernel updates and reboot their systems to ensure the fix is applied. Due to ABI changes, recompilation and reinstallation of third-party kernel modules may be necessary. Follow vendor instructions for updating and rebuilding kernel modules.
Description
A vulnerability in the Linux kernel's RDMA bnxt_re driver was fixed by initializing the dpi variable to zero. Previously, dpi was only initialized for BNXT_RE_ALLOC_WC_PAGE cases but copied in all cases, potentially leading to undefined behavior. This issue was addressed in multiple Linux kernel versions as part of a broader security update fixing several kernel subsystems.
References
- nvd.nist.gov/vuln/detail/CVE-2026-72501 (opens in a new tab)
- git.kernel.org/stable/c/3d00b375853fbbf4157ad092884b4ed9a49429c1 (opens in a new tab)
- git.kernel.org/stable/c/978b27d6ce538bb832ccd69e45802824e4301c4b (opens in a new tab)
- git.kernel.org/stable/c/b87cbd4d198ae377be4815d8102fa9dfefb91dcc (opens in a new tab)
- ubuntu.com/security/CVE-2026-72501 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-72501 (opens in a new tab)
- git.kernel.org/linus/978b27d6ce538bb832ccd69e45802824e4301c4b (opens in a new tab)
- ubuntu.com/security/notices/USN-8816-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8816-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8816-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-8816-4 (opens in a new tab)
- ubuntu.com/security/notices/USN-8888-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8888-2 (opens in a new tab)