CVE-2026-98597 PUBLISHED

net: usb: sr9700: include receive overhead in the length check

Assigner: Linux
Reserved: 25.09.2026 Published: 18.10.2026 Updated: 18.10.2026

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.

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from c9b37458e95629b1d1171457afdcc1bf1eb7881d to 92d88c88390fc62444c00a1a22078f838e03891f (excl.)
  • affected from c9b37458e95629b1d1171457afdcc1bf1eb7881d to baf07d5153d3af8f98e65e2d3566bc0d50c4e3ac (excl.)
  • affected from c9b37458e95629b1d1171457afdcc1bf1eb7881d to 8488779d9bddbdb33588c9fc2c0657a3da773f61 (excl.)
  • affected from c9b37458e95629b1d1171457afdcc1bf1eb7881d to e1f5b74edccf4c9b671b6bce4435a98746fe5167 (excl.)
  • affected from c9b37458e95629b1d1171457afdcc1bf1eb7881d to 9b59b00890c5dea355b4cc8795ab8eeafc044e48 (excl.)
  • affected from c9b37458e95629b1d1171457afdcc1bf1eb7881d to 6ab6c9d120b30c94579192ef83a581a3dda6d79c (excl.)
  • affected from c9b37458e95629b1d1171457afdcc1bf1eb7881d to 05b442709bd5256c6c0e11fe56b9a0cb2455c245 (excl.)
  • affected from c9b37458e95629b1d1171457afdcc1bf1eb7881d to c06bde80ae7a7b595732f7cabcb92cf08db9d56a (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 3.12 is affected
  • unaffected from 0 to 3.12 (excl.)
  • unaffected from 5.10.271 to 5.10.* (incl.)
  • unaffected from 5.15.222 to 5.15.* (incl.)
  • unaffected from 6.1.189 to 6.1.* (incl.)
  • unaffected from 6.6.158 to 6.6.* (incl.)
  • unaffected from 6.12.112 to 6.12.* (incl.)
  • unaffected from 6.18.55 to 6.18.* (incl.)
  • unaffected from 7.2.9 to 7.2.* (incl.)
  • unaffected from 7.3-rc5 to * (incl.)

References