CVE-2022-48927

Summary

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

iio: adc: tsc2046: fix memory corruption by preventing array overflow

On one side we have indio_dev->num_channels includes all physical channels + timestamp channel. On other side we have an array allocated only for physical channels. So, fix memory corruption by ARRAY_SIZE() instead of num_channels variable.

Note the first case is a cleanup rather than a fix as the software timestamp channel bit in active_scanmask is never set by the IIO core.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux9374e8f5a38defe90bc65b2decf317c1c62d91dd < 0cb9b2f73c182d242a640e512f4785c7c504512faffected
LinuxLinux9374e8f5a38defe90bc65b2decf317c1c62d91dd < 082d2c047b0d305bb0b6e9f9d671a09470e2db2daffected
LinuxLinux9374e8f5a38defe90bc65b2decf317c1c62d91dd < b7a78a8adaa8849c02f174d707aead0f85dca0daaffected
LinuxLinux5.14affected
LinuxLinux0 < 5.14unaffected
LinuxLinux5.15.26 <= 5.15.*unaffected
LinuxLinux5.16.12 <= 5.16.*unaffected
LinuxLinux5.17 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References