Riskcovery

CVE-2026-93793

wifi: iwlwifi: mvm: validate TX_CMD response layout

State
Published
Severity
8.8 High
Published
Sep 24, 2026
Updated
Oct 30, 2026
Reserved
Sep 18, 2026

Read the record on cve.org

Description

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

wifi: iwlwifi: mvm: validate TX_CMD response layout

TX_CMD parsing uses frame_count to walk status entries and then read the trailing SCD SSN. Make the minimum-length check follow that exact runtime layout calculation before parsing the payload.

For new TX API, reject TX_CMD responses with frame_count != 1 and warn/return in the aggregation handler to document that aggregated accounting is expected via BA notifications.

Scores

CVSSScoreVectorSource
3.18.8 HighCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HLinux

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 8ca151b568b67a7b72dcfc6ee6ea7c107ddd795c to before 658b5c00d653cdd72babc86791f6f6711190c740Affected
  • 8ca151b568b67a7b72dcfc6ee6ea7c107ddd795c to before 5e871c03506c529d5fe372d099c1ad1465c7bc38Affected
  • 8ca151b568b67a7b72dcfc6ee6ea7c107ddd795c to before fc14f5fe8a4374ed1088cfbddc1dae4d16c9935bAffected
  • 8ca151b568b67a7b72dcfc6ee6ea7c107ddd795c to before 4d942dfc13aec393e003ab28ff58db744c26e6ebAffected
  • 8ca151b568b67a7b72dcfc6ee6ea7c107ddd795c to before 8d70881707b47353359df57df12f6de67fdacdd2Affected
LinuxLinux
  • 3.9Affected
  • before 3.9Not affected
  • 6.1.191 through 6.1.*Not affected
  • 6.6.160 through 6.6.*Not affected
  • 6.12.111 through 6.12.*Not affected
  • 6.18.53 through 6.18.*Not affected
  • 7.2 and laterNot affected

References

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