CVE-2025-68343

NameCVE-2025-68343
DescriptionIn the Linux kernel, the following vulnerability has been resolved: can: gs_usb: gs_usb_receive_bulk_callback(): check actual_length before accessing header The driver expects to receive a struct gs_host_frame in gs_usb_receive_bulk_callback(). Use struct_group to describe the header of the struct gs_host_frame and check that we have at least received the header before accessing any members of it. To resubmit the URB, do not dereference the pointer chain "dev->parent->hf_size_rx" but use "parent->hf_size_rx" instead. Since "urb->context" contains "parent", it is always defined, while "dev" is not defined if the URB it too short.
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)bullseye5.10.223-1vulnerable
bullseye (security)5.10.247-1vulnerable
bookworm6.1.159-1fixed
bookworm (security)6.1.158-1vulnerable
trixie6.12.63-1fixed
trixie (security)6.12.48-1vulnerable
forky6.17.13-1fixed
sid6.18.3-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsourcebookworm6.1.159-1
linuxsourcetrixie6.12.63-1
linuxsource(unstable)6.17.11-1

Notes

https://git.kernel.org/linus/6fe9f3279f7d2518439a7962c5870c6e9ecbadcf (6.18)

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