CVE-2024-50174

Summary

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

drm/panthor: Fix race when converting group handle to group object

XArray provides it's own internal lock which protects the internal array when entries are being simultaneously added and removed. However there is still a race between retrieving the pointer from the XArray and incrementing the reference count.

To avoid this race simply hold the internal XArray lock when incrementing the reference count, this ensures there cannot be a racing call to xa_erase().

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxde85488138247d034eb3241840424a54d660926b < 8a585d553c11965332d7a2d74e79ef92a42bfc87affected
LinuxLinuxde85488138247d034eb3241840424a54d660926b < 44742138d151c3a945460ae7beff8ae45ac0bf58affected
LinuxLinuxde85488138247d034eb3241840424a54d660926b < cac075706f298948898b1f63e81709df42afa75daffected
LinuxLinux6.10affected
LinuxLinux0 < 6.10unaffected
LinuxLinux6.10.14 <= 6.10.*unaffected
LinuxLinux6.11.3 <= 6.11.*unaffected
LinuxLinux6.12 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

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

References