CVE-2025-38608bpf, ktls: Fix data corruption when using bpf_msg_pop_data() in ktls
Updated under an hour ago ()
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It affects Linux and 2 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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In 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.
- CVSS
- 8.6 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 15, 2026
Affected products
Linux Linux linux:linux (from the name) | 7246d8ed4dcce23f7509949a77be15fa9f0e3d28 builds before 6ba20ff3cdb96a908b9dc93cf247d0b087672e7c; 7246d8ed4dcce23f7509949a77be15fa9f0e3d28 builds before 849d24dc5aed45ebeb3490df429356739256ac40; 7246d8ed4dcce23f7509949a77be15fa9f0e3d28 builds before 73fc5d04009d3969ff8e8574f0fd769f04124e59; 7246d8ed4dcce23f7509949a77be15fa9f0e3d28 builds before 16aca8bb4ad0d8a13c8b6da4007f4e52d53035bb; 7246d8ed4dcce23f7509949a77be15fa9f0e3d28 builds before 0e853c1464bcf61207f8b5c32d2ac5ee495e859d; from 7246d8ed4dcce23f7509949a77be15fa9f0e3d28 before ee03766d79de0f61ea29ffb6ab1c7b196ea1b02e; 7246d8ed4dcce23f7509949a77be15fa9f0e3d28 builds before 90d6ef67440cec2a0aad71a0108c8f216437345c; 7246d8ed4dcce23f7509949a77be15fa9f0e3d28 builds before 1e480387d4b42776f8957fb148af9d75ce93b96d; and 1 more ranges | CNA record |
linux linux_kernel linux:linux_kernel | from 5.0 before 5.4.297; from 5.5 before 5.10.241; from 5.11 before 5.15.190; from 5.16 before 6.1.148; from 6.2 before 6.6.102; from 6.7 before 6.12.42; from 6.13 before 6.15.10; from 6.16 before 6.16.1 | NVD |
debian debian_linux debian:debian_linux | 11.0 | NVD |
References
- https://git.kernel.org/stable/c/6ba20ff3cdb96a908b9dc93cf247d0b087672e7cpatch
- https://git.kernel.org/stable/c/849d24dc5aed45ebeb3490df429356739256ac40patch
- https://git.kernel.org/stable/c/73fc5d04009d3969ff8e8574f0fd769f04124e59patch
- https://git.kernel.org/stable/c/16aca8bb4ad0d8a13c8b6da4007f4e52d53035bbpatch
- https://git.kernel.org/stable/c/0e853c1464bcf61207f8b5c32d2ac5ee495e859dpatch
- https://git.kernel.org/stable/c/ee03766d79de0f61ea29ffb6ab1c7b196ea1b02epatch
- https://git.kernel.org/stable/c/90d6ef67440cec2a0aad71a0108c8f216437345cpatch
- https://git.kernel.org/stable/c/1e480387d4b42776f8957fb148af9d75ce93b96dpatch
- https://git.kernel.org/stable/c/178f6a5c8cb3b6be1602de0964cd440243f493c9patch
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.htmlthird-party-advisory
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.htmlthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.