What is CVE-2024-35894?

CVE-2024-35894 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, affecting Linux kernel versions from 6.7 onward and patched in 6.8.5 and 6.9. CVE-2024-35894 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-35894?

CVE-2024-35894 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2024-35894?

Yes, CVE-2024-35894 has been patched. Fixed versions include 6.8.5 and 6.9. If you are running Linux kernel 6.7 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2024-35894 actively exploited?

CVE-2024-35894 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2024-35894

High

In the Linux kernel, the following vulnerability has been resolved: mptcp: prevent BPF accessing lowat from a subflow socket. Alexei reported the following splat: WARNING: CPU: 32 PID: 3276 at net/mptcp/subflow.c:1430 subflow_data_ready+0x147/0x1c0 Modules linked in: dummy bpf_testmod(O) [last unloaded: bpf_test_no_cfi(O)] CPU: 32 PID: 3276 Comm: test_progs Tainted: GO 6.8.0-12873-g2c43c33bfd23 Call Trace: <TASK> mptcp_set_rcvlowat+0x79/0x1d0 sk_setsockopt+0x6c0/0x1540 __bpf_setsockopt+0x6f/0x90 bpf_sock_ops_setsockopt+0x3c/0x90 bpf_prog_509ce5db2c7f9981_bpf_test_sockopt_int+0xb4/0x11b bpf_prog_dce07e362d941d2b_bpf_test_socket_sockopt+0x12b/0x132 bpf_prog_348c9b5faaf10092_skops_sockopt+0x954/0xe86 __cgroup_bpf_run_filter_sock_ops+0xbc/0x250 tcp_connect+0x879/0x1160 tcp_v6_connect+0x50c/0x870 mptcp_connect+0x129/0x280 __inet_stream_connect+0xce/0x370 inet_stream_connect+0x36/0x50 bpf_trampoline_6442491565+0x49/0xef inet_stream_connect+0x5/0x50 __sys_connect+0x63/0x90 __x64_sys_connect+0x14/0x20 The root cause of the issue is that bpf allows accessing mptcp-level proto_ops from a tcp subflow scope. Fix the issue detecting the problematic call and preventing any action.

Package Linux Kernel

Published 2024-05-19

Last modified 2025-03-21

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Affected versions

Linux kernel versions 6.7 and later are affected. Fixed in 6.8.5, 6.9 and their respective stable series.

Affected from

≥ 6.7

Fixed in

✓ 6.8.5 6.8.x ✓ 6.9

References

4 total

Kernel Git
https://git.kernel.org/stable/c/3ffb1ab698376f09cc33101c07c1be229389fe29

Patch
Kernel Git
https://git.kernel.org/stable/c/ee3c845787b621cfe82c2e52c513024a9d7a78f5

Patch
Kernel Git
https://git.kernel.org/stable/c/fcf4692fa39e86a590c14a4af2de704e1d20a3b5

Patch
Security
https://security.netapp.com/advisory/ntap-20250321-0002/

Details

CVE ID CVE-2024-35894

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2024-05-19

Modified 2025-03-21

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2024-35894?

CVE-2024-35894 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . It affects Linux kernel versions from 6.7 onward and has been patched in 6.8.5 and 6.9. CVE-2024-35894 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-35894?

CVE-2024-35894 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2024-35894?

Yes. CVE-2024-35894 has been patched. Fixed versions include 6.8.5 and 6.9. If you are running Linux kernel 6.7 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2024-35894 actively exploited?

No. CVE-2024-35894 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.