CVE-2024-56694

Jan. 9, 2025, 4:16 p.m.

5.5
Medium

Description

In the Linux kernel, the following vulnerability has been resolved: bpf: fix recursive lock when verdict program return SK_PASS When the stream_verdict program returns SK_PASS, it places the received skb into its own receive queue, but a recursive lock eventually occurs, leading to an operating system deadlock. This issue has been present since v6.9. ''' sk_psock_strp_data_ready write_lock_bh(&sk->sk_callback_lock) strp_data_ready strp_read_sock read_sock -> tcp_read_sock strp_recv cb.rcv_msg -> sk_psock_strp_read # now stream_verdict return SK_PASS without peer sock assign __SK_PASS = sk_psock_map_verd(SK_PASS, NULL) sk_psock_verdict_apply sk_psock_skb_ingress_self sk_psock_skb_ingress_enqueue sk_psock_data_ready read_lock_bh(&sk->sk_callback_lock) <= dead lock ''' This topic has been discussed before, but it has not been fixed. Previous discussion: https://lore.kernel.org/all/6684a5864ec86_403d20898@john.notmuch

Product(s) Impacted

Vendor Product Versions
Linux
  • Linux Kernel
  • *

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-667
Improper Locking
The product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors.

*CPE(s)

Affected systems and software identified for this CVE.

Type Vendor Product Version Update Edition Language Software Edition Target Software Target Hardware Other Information
o linux linux_kernel / / / / / / / /
o linux linux_kernel / / / / / / / /
o linux linux_kernel / / / / / / / /
o linux linux_kernel / / / / / / / /
o linux linux_kernel / / / / / / / /
o linux linux_kernel / / / / / / / /

References

https://git.kernel.org/stable/c/01f1b88acfd79103da0610b45471f6c88ea98d72
https://git.kernel.org/stable/c/078f7e1521442a55db4bed812a2fbaf02ac33819
https://git.kernel.org/stable/c/221109ba2127eabd0aa64718543638b58b15df56
https://git.kernel.org/stable/c/386efa339e08563dd33e83bc951aea5d407fe578
https://git.kernel.org/stable/c/6694f7acd625ed854bf6342926e771d65dad7f69
https://git.kernel.org/stable/c/8ca2a1eeadf09862190b2810697702d803ceef2d
https://git.kernel.org/stable/c/da2bc8a0c8f3ac66fdf980fc59936f851a083561
https://git.kernel.org/stable/c/f84c5ef6ca23cc2f72f3b830d74f67944684bb05

Tags

416baaa9-dc9f-4396-8d5f-8c081fb06d67
CWE-667
2024-12-28
CVE-2024-56694

CVSS Score

5.5 / 10

CVSS Data - 3.1

  • Attack Vector: LOCAL
  • Attack Complexity: LOW
  • Privileges Required: LOW
  • Scope: UNCHANGED
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: HIGH

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

    View Vector String

Timeline

Published: Dec. 28, 2024, 10:15 a.m.
Last Modified: Jan. 9, 2025, 4:16 p.m.

Status : Modified

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

416baaa9-dc9f-4396-8d5f-8c081fb06d67

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.