Bug 2347869 (CVE-2022-49489)

Summary: CVE-2022-49489 kernel: drm/msm/disp/dpu1: set vbif hw config to NULL to avoid use after memory free during pm runtime resume
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2025-02-26 03:09:35 UTC 
In the Linux kernel, the following vulnerability has been resolved:

drm/msm/disp/dpu1: set vbif hw config to NULL to avoid use after memory free during pm runtime resume

BUG: Unable to handle kernel paging request at virtual address 006b6b6b6b6b6be3

Call trace:
  dpu_vbif_init_memtypes+0x40/0xb8
  dpu_runtime_resume+0xcc/0x1c0
  pm_generic_runtime_resume+0x30/0x44
  __genpd_runtime_resume+0x68/0x7c
  genpd_runtime_resume+0x134/0x258
  __rpm_callback+0x98/0x138
  rpm_callback+0x30/0x88
  rpm_resume+0x36c/0x49c
  __pm_runtime_resume+0x80/0xb0
  dpu_core_irq_uninstall+0x30/0xb0
  dpu_irq_uninstall+0x18/0x24
  msm_drm_uninit+0xd8/0x16c

Patchwork: https://patchwork.freedesktop.org/patch/483255/
[DB: fixed Fixes tag]
Comment 1 Avinash Hanwate 2025-02-26 12:06:06 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022605-CVE-2022-49489-4131@gregkh/T
Comment 2 Avinash Hanwate 2025-02-26 16:22:15 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022605-CVE-2022-49489-4131@gregkh/T