01 Record

CVE-2026-64025

bpf, skmsg: fix verdict sk_data_ready racing with ktls rx

CriticalPUBLISHEDCNA: Linux

CNA base score9.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

View raw JSON

02 Description

bpf, skmsg: fix verdict sk_data_ready racing with ktls rx

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.34% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 27.5% of scored records. A rank, not a probability.

NVD base score

9.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-10-19.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2026-07-19 15:39Z3 MO AGO

Last updated

2026-10-19 20:28Z9 DAYS AGO

Reserved

2026-07-19

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Critical (CVSS 9.8)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')Class
CWE-364Signal Handler Race ConditionBase

Data version

5.2

Document digest

d5e054bfde005a58144d805dcc242fa0bd74d0fa2fe464d17c816ea4830d768b

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxef5659280eb13e8ac31c296f58cfdfa1684ac06b to < c9ea01768903ae47f210cd457af1dead6de7a9c3, ef5659280eb13e8ac31c296f58cfdfa1684ac06b to < 7c8cf21bc4efb4af18d6096db3f8bd06d622251c, ef5659280eb13e8ac31c296f58cfdfa1684ac06b to < 1861d369efd62d67796563bf3e01fc22e5626f8b, ef5659280eb13e8ac31c296f58cfdfa1684ac06b to < 8a52139560f833c3975032e1f5762611e3a36d71, ef5659280eb13e8ac31c296f58cfdfa1684ac06b to < ddf8029623a1af20e984c040e89ff918158397ab, 5.10—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/c9ea01768903ae47f210cd457af1dead6de7a9c3
git.kernel.orghttps://git.kernel.org/stable/c/7c8cf21bc4efb4af18d6096db3f8bd06d622251c
git.kernel.orghttps://git.kernel.org/stable/c/1861d369efd62d67796563bf3e01fc22e5626f8b
git.kernel.orghttps://git.kernel.org/stable/c/8a52139560f833c3975032e1f5762611e3a36d71
git.kernel.orghttps://git.kernel.org/stable/c/ddf8029623a1af20e984c040e89ff918158397ab

07 Fixed in

Debian 12

linux
No fix yet

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 6.12.94-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 7.0.12-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.