In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Several fixes to bpf_msg_pop_data Several fixes to bpf_msg_pop_data, 1. In sk_msg_shift_left, we should put_page 2. if (len == 0), return early is better 3. pop the entire sk_msg (last == msg->sg.size) should be supported 4. Fix for the value of variable "a" 5. In sk_msg_shift_left, after shifting, i has already pointed to the next element. Addtional sk_msg_iter_var_next may result in BUG.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Linux
  • Linux Kernel

Configuration 1 [-]

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

No data.

References
Link Providers
https://git.kernel.org/stable/c/275a9f3ef8fabb0cb282a62b9e164dedba7284c5 cve-icon cve-icon
https://git.kernel.org/stable/c/5d609ba262475db450ba69b8e8a557bd768ac07a cve-icon cve-icon
https://git.kernel.org/stable/c/785180bed9879680d8e5c5e1b54c8ae8d948f4c8 cve-icon cve-icon
https://git.kernel.org/stable/c/98c7ea7d11f2588e8197db042e0291e4ac8f8346 cve-icon cve-icon
https://git.kernel.org/stable/c/d26d977633d1d0b8bf9407278189bd0a8d973323 cve-icon cve-icon
https://git.kernel.org/stable/c/d3f5763b3062514a234114e97bbde74d8d702449 cve-icon cve-icon
https://git.kernel.org/stable/c/e1f54c61c4c9a5244eb8159dce60d248f7d97b32 cve-icon cve-icon
https://git.kernel.org/stable/c/f58d3aa457e77a3d9b3df2ab081dcf9950f6029f cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2024122920-CVE-2024-56720-614a@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2024-56720 cve-icon
https://www.cve.org/CVERecord?id=CVE-2024-56720 cve-icon
History

Wed, 01 Oct 2025 21:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 16 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.00032}

 epss

{'score': 0.00034}

Thu, 09 Jan 2025 20:30:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
Weaknesses CWE-193
CWE-401
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel

Mon, 30 Dec 2024 14:00:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Low

Sun, 29 Dec 2024 11:45:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Several fixes to bpf_msg_pop_data Several fixes to bpf_msg_pop_data, 1. In sk_msg_shift_left, we should put_page 2. if (len == 0), return early is better 3. pop the entire sk_msg (last == msg->sg.size) should be supported 4. Fix for the value of variable "a" 5. In sk_msg_shift_left, after shifting, i has already pointed to the next element. Addtional sk_msg_iter_var_next may result in BUG.
Title bpf, sockmap: Several fixes to bpf_msg_pop_data
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-12-29T11:29:58.345Z

Updated: 2025-10-01T20:07:06.140Z

Reserved: 2024-12-27T15:00:39.858Z

Link: CVE-2024-56720

cve-icon Vulnrichment

Updated: 2025-10-01T15:48:09.081Z

cve-icon NVD

Status : Modified

Published: 2024-12-29T12:15:06.037

Modified: 2025-10-01T20:17:43.843

Link: CVE-2024-56720

cve-icon Redhat

Severity : Low

Publid Date: 2024-12-29T00:00:00Z

Links: CVE-2024-56720 - Bugzilla