CVE-2022-49359

Summary

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

drm/panfrost: Job should reference MMU not file_priv

For a while now it's been allowed for a MMU context to outlive it's corresponding panfrost_priv, however the job structure still references panfrost_priv to get hold of the MMU context. If panfrost_priv has been freed this is a use-after-free which I've been able to trigger resulting in a splat.

To fix this, drop the reference to panfrost_priv in the job structure and add a direct reference to the MMU structure which is what's actually needed.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux7fdc48cc63a30fa3480d18bdd8c5fff2b9b15212 < 8c8e8cc91a6ffc79865108279a74fd57d9070a17affected
LinuxLinux7fdc48cc63a30fa3480d18bdd8c5fff2b9b15212 < 472dd7ea5e19a1aeabf1711ddc756777e05ee7c2affected
LinuxLinux7fdc48cc63a30fa3480d18bdd8c5fff2b9b15212 < 6e516faf04317db2c46cbec4e3b78b4653a5b109affected
LinuxLinuxc29485e34e63198dca6289639aa711f99d88e76eaffected
LinuxLinux626adede2642f00c8918999a2451bd0a644ab9b7affected
LinuxLinuxcf461fa9250a634e8afc4433d82ae0decea8136eaffected
LinuxLinux5.10.67 < 5.11affected
LinuxLinux5.13.19 < 5.14affected
LinuxLinux5.14.6 < 5.15affected
LinuxLinux5.15affected
LinuxLinux0 < 5.15unaffected
LinuxLinux5.17.15 <= 5.17.*unaffected
LinuxLinux5.18.4 <= 5.18.*unaffected
LinuxLinux5.19 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

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

References