CVE-2025-38608

NameCVE-2025-38608
DescriptionIn the Linux kernel, the following vulnerability has been resolved: bpf, ktls: Fix data corruption when using bpf_msg_pop_data() in ktls When sending plaintext data, we initially calculated the corresponding ciphertext length. However, if we later reduced the plaintext data length via socket policy, we failed to recalculate the ciphertext length. This results in transmitting buffers containing uninitialized data during ciphertext transmission. This causes uninitialized bytes to be appended after a complete "Application Data" packet, leading to errors on the receiving end when parsing TLS record.
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)
ReferencesDLA-4327-1, DLA-4328-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)bullseye5.10.223-1vulnerable
bullseye (security)5.10.244-1fixed
bookworm6.1.148-1fixed
bookworm (security)6.1.153-1fixed
trixie6.12.43-1fixed
trixie (security)6.12.48-1fixed
forky6.16.12-2fixed
sid6.17.6-1fixed
linux-6.1 (PTS)bullseye (security)6.1.153-1~deb11u1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsourcebullseye5.10.244-1DLA-4327-1
linuxsourcebookworm6.1.148-1
linuxsourcetrixie6.12.43-1
linuxsource(unstable)6.16.3-1
linux-6.1sourcebullseye6.1.153-1~deb11u1DLA-4328-1

Notes

https://git.kernel.org/linus/178f6a5c8cb3b6be1602de0964cd440243f493c9 (6.17-rc1)

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