Bug 2389471 (CVE-2025-38608) - CVE-2025-38608 kernel: bpf, ktls: Fix data corruption when using bpf_msg_pop_data() in ktls
Summary: CVE-2025-38608 kernel: bpf, ktls: Fix data corruption when using bpf_msg_pop_...
Keywords:
Status: NEW
Alias: CVE-2025-38608
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-08-19 18:02 UTC by OSIDB Bzimport
Modified: 2025-08-20 09:00 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:


Attachments (Terms of Use)

Description OSIDB Bzimport 2025-08-19 18:02:31 UTC
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.


Note You need to log in before you can comment on or make changes to this bug.