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CVE-2026-68176

tracing: Fix mmiotrace possible NULL dereferencing of hiter->dev

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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version f984b51e0779a6dd30feedc41404013ca54e5d05
Version < c06470320f8156306986a831010cdc9f9f87cb50
Status affected
Version f984b51e0779a6dd30feedc41404013ca54e5d05
Version < 0d5aaf91a3d05f7f993401af27872a5fc0f26edc
Status affected
Version f984b51e0779a6dd30feedc41404013ca54e5d05
Version < 3635a9e8b453e658a49b39d025f35bbc6e58d0e2
Status affected
Version f984b51e0779a6dd30feedc41404013ca54e5d05
Version < faaf95135184208ee3ac6f33175c8d1800669dfc
Status affected
Version f984b51e0779a6dd30feedc41404013ca54e5d05
Version < 201a01102c529772168181190cb084471082cf5c
Status affected
Version f984b51e0779a6dd30feedc41404013ca54e5d05
Version < 8464427e1c177809a9488a97dfa2807d9dcf323b
Status affected
Version f984b51e0779a6dd30feedc41404013ca54e5d05
Version < 724cd84b0546c07806840fa658714488553d13a2
Status affected
Version f984b51e0779a6dd30feedc41404013ca54e5d05
Version < 144f29e85702234b23d2a62abf723e6a17eb5427
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 2.6.27
Status affected
Version 0
Version < 2.6.27
Status unaffected
Version <= 5.10.*
Version 5.10.265
Status unaffected
Version <= 5.15.*
Version 5.15.216
Status unaffected
Version <= 6.1.*
Version 6.1.183
Status unaffected
Version <= 6.6.*
Version 6.6.148
Status unaffected
Version <= 6.12.*
Version 6.12.101
Status unaffected
Version <= 6.18.*
Version 6.18.42
Status unaffected
Version <= 7.1.*
Version 7.1.6
Status unaffected
Version <= *
Version 7.2
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.21% 0.116
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Es wurden noch keine Informationen zu CWE veröffentlicht.
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
https://git.kernel.org/stable/c/0d5aaf91a3d05f7f993401af27872a5fc0f26edc
https://git.kernel.org/stable/c/3635a9e8b453e658a49b39d025f35bbc6e58d0e2
https://git.kernel.org/stable/c/c06470320f8156306986a831010cdc9f9f87cb50