CVE-2024-56694

Published: Dic 28, 2024 Last Modified: Nov 03, 2025 EU-VD ID: EUVD-2024-53342
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 5,5
Source: [email protected]
Attack Vector: local
Attack Complexity: low
Privileges Required: low
User Interaction: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high

Description

AI Translation Available

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/[email protected]

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0004
Percentile
0,1th
Updated

EPSS Score Trend (Last 90 Days)

667

Improper Locking

Draft
Abstraction: Class Structure: Simple
Common Consequences
Security Scopes Affected:
Availability
Potential Impacts:
Dos: Resource Consumption (Cpu)
Applicable Platforms
All platforms may be affected
View CWE Details
Operating System

Linux Kernel by Linux

Product Information
Vendor Linux
Product Linux Kernel
Version Range Affected
From 5.15.159 (inclusive)
To 5.15.174 (exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Linux Kernel by Linux

Product Information
Vendor Linux
Product Linux Kernel
Version Range Affected
From 6.6.31 (inclusive)
To 6.6.64 (exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Linux Kernel by Linux

Product Information
Vendor Linux
Product Linux Kernel
Version Range Affected
From 5.10.223 (inclusive)
To 5.11 (exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Linux Kernel by Linux

Product Information
Vendor Linux
Product Linux Kernel
Version Range Affected
From 6.1.91 (inclusive)
To 6.1.120 (exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Linux Kernel by Linux

Product Information
Vendor Linux
Product Linux Kernel
Version Range Affected
From 6.12 (inclusive)
To 6.12.2 (exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Linux Kernel by Linux

Product Information
Vendor Linux
Product Linux Kernel
Version Range Affected
From 6.8.10 (inclusive)
To 6.11.11 (exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://git.kernel.org/stable/c/01f1b88acfd79103da0610b4547…
https://git.kernel.org/stable/c/01f1b88acfd79103da0610b45471f6c88ea98d72
https://git.kernel.org/stable/c/221109ba2127eabd0aa64718543…
https://git.kernel.org/stable/c/221109ba2127eabd0aa64718543638b58b15df56
https://git.kernel.org/stable/c/386efa339e08563dd33e83bc951…
https://git.kernel.org/stable/c/386efa339e08563dd33e83bc951aea5d407fe578
https://git.kernel.org/stable/c/6694f7acd625ed854bf6342926e…
https://git.kernel.org/stable/c/6694f7acd625ed854bf6342926e771d65dad7f69
https://git.kernel.org/stable/c/8ca2a1eeadf09862190b2810697…
https://git.kernel.org/stable/c/8ca2a1eeadf09862190b2810697702d803ceef2d
https://git.kernel.org/stable/c/da2bc8a0c8f3ac66fdf980fc599…
https://git.kernel.org/stable/c/da2bc8a0c8f3ac66fdf980fc59936f851a083561
https://git.kernel.org/stable/c/f84c5ef6ca23cc2f72f3b830d74…
https://git.kernel.org/stable/c/f84c5ef6ca23cc2f72f3b830d74f67944684bb05
https://lists.debian.org/debian-lts-announce/2025/03/msg000…
https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
https://lists.debian.org/debian-lts-announce/2025/03/msg000…
https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html