CVE-2026-43267 PUBLISHED

wifi: rtw89: fix potential zero beacon interval in beacon tracking

Assigner: Linux
Reserved: 01.05.2026 Published: 06.05.2026 Updated: 06.05.2026

In the Linux kernel, the following vulnerability has been resolved:

wifi: rtw89: fix potential zero beacon interval in beacon tracking

During fuzz testing, it was discovered that bss_conf->beacon_int might be zero, which could result in a division by zero error in subsequent calculations. Set a default value of 100 TU if the interval is zero to ensure stability.

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to 1260bee01493126cf9c872b6ca2af261173baa6d (excl.)
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to e00c9a4ec84c0bb067833b34202f457badbbc1c1 (excl.)
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to eb57be32f438c57c88d6ce756101c1dfbcc03bba (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • unaffected from 6.18.16 to 6.18.* (incl.)
  • unaffected from 6.19.6 to 6.19.* (incl.)
  • unaffected from 7.0 to * (incl.)

References