CVE-2026-68176
Description
In the Linux kernel, the following vulnerability has been resolved: tracing: Fix mmiotrace possible NULL dereferencing of hiter->dev If the mmio_pipe_open() fails to find a PCI device, the hiter->dev will be assigned to NULL. The mmiotrace read() function dereferences the hiter->dev if hiter exists. Change the test of the read to not only check hiter being NULL, but also the hiter->dev before dereferencing it.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
Propose a mitigation on Community Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
References
- https://git.kernel.org/stable/c/faaf95135184208ee3ac6f33175c8d1800669dfc
- https://git.kernel.org/stable/c/201a01102c529772168181190cb084471082cf5c
- https://git.kernel.org/stable/c/8464427e1c177809a9488a97dfa2807d9dcf323b
- https://git.kernel.org/stable/c/724cd84b0546c07806840fa658714488553d13a2
- https://git.kernel.org/stable/c/144f29e85702234b23d2a62abf723e6a17eb5427
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.