{"cve":"CVE-2026-68176","nvd":{"published":"2026-08-10T13:20:04.490","modified":"2026-08-19T17:20:34.080","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Fix mmiotrace possible NULL dereferencing of hiter->dev\n\nIf the mmio_pipe_open() fails to find a PCI device, the hiter->dev\nwill be assigned to NULL. The mmiotrace read() function dereferences the\nhiter->dev if hiter exists.\n\nChange the test of the read to not only check hiter being NULL, but also\nthe hiter->dev before dereferencing it.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/0d5aaf91a3d05f7f993401af27872a5fc0f26edc","https://git.kernel.org/stable/c/144f29e85702234b23d2a62abf723e6a17eb5427","https://git.kernel.org/stable/c/201a01102c529772168181190cb084471082cf5c","https://git.kernel.org/stable/c/3635a9e8b453e658a49b39d025f35bbc6e58d0e2","https://git.kernel.org/stable/c/724cd84b0546c07806840fa658714488553d13a2"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:47:54.990491175+00:00"},"epss":{"cve":"CVE-2026-68176","score":0.00211,"percentile":0.11294,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}