CVE-2026-98597: Linux kernel · net: usb: sr9700: include receive overhead in the length check
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 5.2 Medium.
Data as of 28 Oct 2026, 01:28 UTC
CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 18 Oct 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
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.
Description
In the Linux kernel, the following vulnerability has been resolved: net: usb: sr9700: include receive overhead in the length check The receive fixup subtracts the Ethernet CRC from the reported packet length, but compares that payload length against the whole remaining receive buffer. The following copy starts after the three-byte header, and the cursor advance consumes both that header and the four-byte CRC. Require the payload to fit after SR_RX_OVERHEAD before copying it or advancing to the next packet. The loop already ensures that the remaining buffer is larger than the overhead, so the subtraction is safe. The issue was found by our static-analysis tool.
References
- ubuntu.com/security/CVE-2026-98597 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-98597 (opens in a new tab)
- git.kernel.org/stable/c/8488779d9bddbdb33588c9fc2c0657a3da773f61 (opens in a new tab)
- git.kernel.org/stable/c/05b442709bd5256c6c0e11fe56b9a0cb2455c245 (opens in a new tab)
- git.kernel.org/stable/c/6ab6c9d120b30c94579192ef83a581a3dda6d79c (opens in a new tab)
- git.kernel.org/stable/c/c06bde80ae7a7b595732f7cabcb92cf08db9d56a (opens in a new tab)
- git.kernel.org/stable/c/e1f5b74edccf4c9b671b6bce4435a98746fe5167 (opens in a new tab)
- git.kernel.org/stable/c/baf07d5153d3af8f98e65e2d3566bc0d50c4e3ac (opens in a new tab)
- git.kernel.org/stable/c/9b59b00890c5dea355b4cc8795ab8eeafc044e48 (opens in a new tab)
- git.kernel.org/stable/c/92d88c88390fc62444c00a1a22078f838e03891f (opens in a new tab)