Is CVE-2026-98876 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-98876 being exploited in the wild.

How severe is CVE-2026-98876?

Informational severity, published 23 October 2026.

Which products and versions are affected?

Unknown Linux kernel Affected versions prior to commit 71d25f668bc5c0f36ea843462e12307dea45aaa3.

Is there a fix for CVE-2026-98876?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-98876 attacked?

It is attacked with local access.

Am I affected by CVE-2026-98876?

Check whether you run Unknown Linux kernel at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-98876: Linux kernel host1x bus NULL pointer dereference in error teardown

CVE-2026-98876 · Severity: info · Published 2026-10-23

The Linux kernel's host1x bus driver failed to check if a client operations structure was valid before attempting to clean up resources during error handling, potentially causing a system crash. If the kernel encounters an initialization error while loading certain GPU-related drivers, it could attempt to dereference a NULL pointer and crash the system.

Technologies: Unknown Linux kernel. Vendors: Unknown.

Quick answers

Is CVE-2026-98876 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-98876 being exploited in the wild.
How severe is CVE-2026-98876?: Informational severity, published 23 October 2026.
Which products and versions are affected?: Unknown Linux kernel Affected versions prior to commit 71d25f668bc5c0f36ea843462e12307dea45aaa3.
Is there a fix for CVE-2026-98876?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-98876 attacked?: It is attacked with local access.
Am I affected by CVE-2026-98876?: Check whether you run Unknown Linux kernel at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The host1x_device_init() function in drivers/gpu/host1x/bus.c lacks NULL checks on client->ops in its error teardown paths (teardown and teardown_late labels), unlike the forward init paths which guard with 'client->ops &&'. A NULL pointer dereference can occur if client->ops is NULL during error teardown, requiring a NULL check to be added before dereferencing client->ops->exit and client->ops->late_exit.

Affected products

<UNKNOWN> Linux kernel Affected versions prior to commit 71d25f668bc5c0f36ea843462e12307dea45aaa3

Timeline

2026-10-23: disclosed

References

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