28 May
2025
28 May
'25
9:59 p.m.
On 2025-05-23 21:18:58, Jiayuan Chen wrote:
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.
Fixes: d3b18ad31f93 ("tls: add bpf support to sk_msg handling") Reported-by: Cong Wang xiyou.wangcong@gmail.com Signed-off-by: Jiayuan Chen jiayuan.chen@linux.dev
LGTM thanks.
Reviewed-by: John Fastabend john.fastabend@gmail.com