Bug 2536419 (CVE-2026-93070) - CVE-2026-93070 kernel: media: ipu6: Do not free aux device pdata after init
Summary: CVE-2026-93070 kernel: media: ipu6: Do not free aux device pdata after init
Keywords:
Status: NEW
Alias: CVE-2026-93070
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-17 17:45 UTC by OSIDB Bzimport
Modified: 2026-10-20 11:31 UTC (History)
17 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
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Description OSIDB Bzimport 2026-09-17 17:45:28 UTC
In the Linux kernel, the following vulnerability has been resolved:

media: ipu6: Do not free aux device pdata after init

ipu6_bus_initialize_device() stores the isys/psys pdata pointer in
struct ipu6_bus_device and initializes the auxiliary device. After that
point, error unwinding must drop the auxiliary device reference and let
ipu6_bus_release() free both the bus device and adev->pdata.

The isys and psys init paths already call put_device() when MMU
initialization fails, and ipu6_bus_add_device() calls
auxiliary_device_uninit() on auxiliary_device_add() failure. Both paths
therefore run the bus release callback. The extra kfree(pdata) in the
callers can release the same object a second time.

Remove the manual pdata frees after the auxiliary device has been
initialized.

This issue was found by a static analysis checker and confirmed by
manual source review.


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