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CVE PROGRAM SOURCE RECORD7.8 High

CVE-2022-50492

drm/msm: fix use-after-free on probe deferral

Description

In the Linux kernel, the following vulnerability has been resolved: drm/msm: fix use-after-free on probe deferral The bridge counter was never reset when tearing down the DRM device so that stale pointers to deallocated structures would be accessed on the next tear down (e.g. after a second late bind deferral). Given enough bridges and a few probe deferrals this could currently also lead to data beyond the bridge array being corrupted. Patchwork: https://patchwork.freedesktop.org/patch/502665/

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • a3376e3ec81c5dd0622cbc187db76d2824d31c1c to < 0a30a47741b6df1f9555a0fac6aebb7e8c363badaffected
  • a3376e3ec81c5dd0622cbc187db76d2824d31c1c to < 6808abdb33bf90330e70a687d29f038507e06ebbaffected

Linux Linux

Default version status: affected

  • 3.12affected
  • 0 to < 3.12unaffected
  • 6.0.7 to ≤ 6.0.*unaffected
  • 6.1 to ≤ *unaffected

References