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CVE-2022-49359

drm/panfrost: Job should reference MMU not file_priv PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
Linux / Linuxaffected 7fdc48cc63a30fa3480d18bdd8c5fff2b9b15212 before 8c8e8cc91a6ffc79865108279a74fd57d9070a17; affected 7fdc48cc63a30fa3480d18bdd8c5fff2b9b15212 before 472dd7ea5e19a1aeabf1711ddc756777e05ee7c2; affected 7fdc48cc63a30fa3480d18bdd8c5fff2b9b15212 before 6e516faf04317db2c46cbec4e3b78b4653a5b109; affected c29485e34e63198dca6289639aa711f99d88e76e; affected 626adede2642f00c8918999a2451bd0a644ab9b7; affected cf461fa9250a634e8afc4433d82ae0decea8136e; affected 5.10.67 before 5.11; affected 5.13.19 before 5.14; affected 5.14.6 before 5.15
Linux / Linuxaffected 5.15; unaffected 0 before 5.15; unaffected 5.17.15 through 5.17.*; unaffected 5.18.4 through 5.18.*; unaffected 5.19 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.