CVE-2024-44931

Summary

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

gpio: prevent potential speculation leaks in gpio_device_get_desc()

Userspace may trigger a speculative read of an address outside the gpio descriptor array. Users can do that by calling gpio_ioctl() with an offset out of range. Offset is copied from user and then used as an array index to get the gpio descriptor without sanitization in gpio_device_get_desc().

This change ensures that the offset is sanitized by using array_index_nospec() to mitigate any possibility of speculative information leaks.

This bug was discovered and resolved using Coverity Static Analysis Security Testing (SAST) by Synopsys, Inc.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux521a2ad6f862a28e2e43cb3e254a26bf0f9452e9 < 18504710442671b02d00e6db9804a0ad26c5a479affected
LinuxLinux521a2ad6f862a28e2e43cb3e254a26bf0f9452e9 < 9ae2d8e75b741dbcb0da374753f972410e83b5f3affected
LinuxLinux521a2ad6f862a28e2e43cb3e254a26bf0f9452e9 < 9d682e89c44bd5819b01f3fbb45a8e3681a4b6d0affected
LinuxLinux521a2ad6f862a28e2e43cb3e254a26bf0f9452e9 < c65ab97efcd438cb4e9f299400f2ea55251f3a67affected
LinuxLinux521a2ad6f862a28e2e43cb3e254a26bf0f9452e9 < 672c19165fc96dfad531a5458e0b3cdab414aae4affected
LinuxLinux521a2ad6f862a28e2e43cb3e254a26bf0f9452e9 < 1b955f786a4bcde8c0ccb2b7d519def2acb6f3ccaffected
LinuxLinux521a2ad6f862a28e2e43cb3e254a26bf0f9452e9 < d776c0486b03a5c4afca65b8ff44573592bf93bbaffected
LinuxLinux521a2ad6f862a28e2e43cb3e254a26bf0f9452e9 < d795848ecce24a75dfd46481aee066ae6fe39775affected
LinuxLinux4.6affected
LinuxLinux0 < 4.6unaffected
LinuxLinux4.19.323 <= 4.19.*unaffected
LinuxLinux5.4.285 <= 5.4.*unaffected
LinuxLinux5.10.227 <= 5.10.*unaffected
LinuxLinux5.15.168 <= 5.15.*unaffected
LinuxLinux6.1.112 <= 6.1.*unaffected
LinuxLinux6.6.46 <= 6.6.*unaffected
LinuxLinux6.10.5 <= 6.10.*unaffected
LinuxLinux6.11 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

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

CVE Program Container

Additional References

References