CVE-2026-68176
tracing: Fix mmiotrace possible NULL dereferencing of hiter->dev
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
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.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
2.6.27
References 8
git.kernel.org
- stable/c/c06470320f8156306986a831010cdc9f9f87cb50
- stable/c/0d5aaf91a3d05f7f993401af27872a5fc0f26edc
- stable/c/3635a9e8b453e658a49b39d025f35bbc6e58d0e2
- stable/c/faaf95135184208ee3ac6f33175c8d1800669dfc
- stable/c/201a01102c529772168181190cb084471082cf5c
- stable/c/8464427e1c177809a9488a97dfa2807d9dcf323b
- stable/c/724cd84b0546c07806840fa658714488553d13a2
- stable/c/144f29e85702234b23d2a62abf723e6a17eb5427