CVE-2026-68176
tracing: Fix mmiotrace possible NULL dereferencing of hiter->dev
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Aug 10, 2026 |
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Affected Versions
Linux / Linux
f984b51e0779a6dd30feedc41404013ca54e5d05 < faaf95135184208ee3ac6f33175c8d1800669dfc f984b51e0779a6dd30feedc41404013ca54e5d05 < 201a01102c529772168181190cb084471082cf5c f984b51e0779a6dd30feedc41404013ca54e5d05 < 8464427e1c177809a9488a97dfa2807d9dcf323b f984b51e0779a6dd30feedc41404013ca54e5d05 < 724cd84b0546c07806840fa658714488553d13a2 f984b51e0779a6dd30feedc41404013ca54e5d05 < 144f29e85702234b23d2a62abf723e6a17eb5427
Linux / Linux
2.6.27
References
git.kernel.org: https://git.kernel.org/stable/c/faaf95135184208ee3ac6f33175c8d1800669dfc git.kernel.org: https://git.kernel.org/stable/c/201a01102c529772168181190cb084471082cf5c git.kernel.org: https://git.kernel.org/stable/c/8464427e1c177809a9488a97dfa2807d9dcf323b git.kernel.org: https://git.kernel.org/stable/c/724cd84b0546c07806840fa658714488553d13a2 git.kernel.org: https://git.kernel.org/stable/c/144f29e85702234b23d2a62abf723e6a17eb5427