Bug 2559544 (CVE-2026-98876) - CVE-2026-98876 kernel: host1x: bus: Fix missing ops null check in error teardown
Summary: CVE-2026-98876 kernel: host1x: bus: Fix missing ops null check in error teardown
Keywords:
Status: NEW
Alias: CVE-2026-98876
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: 2026-10-23 11:51 UTC by OSIDB Bzimport
Modified: 2026-10-26 10:49 UTC (History)
17 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:


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Description OSIDB Bzimport 2026-10-23 11:51:59 UTC
In the Linux kernel, the following vulnerability has been resolved:

host1x: bus: Fix missing ops null check in error teardown

In host1x_device_init(), the error teardown paths do not check
client->ops before dereferencing it, unlike the forward init paths
which correctly guard with 'client->ops &&'. This can result in a
NULL pointer dereference if client->ops is NULL.

Fix by adding the missing client->ops check in both the teardown
and teardown_late labels.


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