CVE-2025-38608
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…
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| 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 |
| Debian | Debian Linux | Version 11.0 |
Weakness classification
References
- NVD record
- CVE.org record
- https://git.kernel.org/stable/c/0e853c1464bcf61207f8b5c32d2ac5ee495e859d
- https://git.kernel.org/stable/c/16aca8bb4ad0d8a13c8b6da4007f4e52d53035bb
- https://git.kernel.org/stable/c/178f6a5c8cb3b6be1602de0964cd440243f493c9
- https://git.kernel.org/stable/c/1e480387d4b42776f8957fb148af9d75ce93b96d
- https://git.kernel.org/stable/c/6ba20ff3cdb96a908b9dc93cf247d0b087672e7c
- https://git.kernel.org/stable/c/73fc5d04009d3969ff8e8574f0fd769f04124e59
- https://git.kernel.org/stable/c/849d24dc5aed45ebeb3490df429356739256ac40
- https://git.kernel.org/stable/c/90d6ef67440cec2a0aad71a0108c8f216437345c
- https://git.kernel.org/stable/c/ee03766d79de0f61ea29ffb6ab1c7b196ea1b02e
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html