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7.8
HIGH CVSS 3.1
CVE-2024-26883
bpf: Fix stackmap overflow check on 32-bit arches
Description

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix stackmap overflow check on 32-bit arches The stackmap code relies on roundup_pow_of_two() to compute the number of hash buckets, and contains an overflow check by checking if the resulting value is 0. However, on 32-bit arches, the roundup code itself can overflow by doing a 32-bit left-shift of an unsigned long value, which is undefined behaviour, so it is not guaranteed to truncate neatly. This was triggered by syzbot on the DEVMAP_HASH type, which contains the same check, copied from the hashtab code. The commit in the fixes tag actually attempted to fix this, but the fix did not account for the UB, so the fix only works on CPUs where an overflow does result in a neat truncation to zero, which is not guaranteed. Checking the value before rounding does not have this problem.

INFO

Published Date :

April 17, 2024, 11:15 a.m.

Last Modified :

Nov. 21, 2024, 9:03 a.m.

Remotely Exploit :

No

Source :

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

The following products are affected by CVE-2024-26883 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 HIGH [email protected]
Solution
This addresses a Linux kernel vulnerability by updating the kernel package.
  • Update the affected Linux kernel package.
  • Reboot the system if required.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2024-26883.

URL Resource
https://git.kernel.org/stable/c/0971126c8164abe2004b8536b49690a0d6005b0a Patch
https://git.kernel.org/stable/c/15641007df0f0d35fa28742b25c2a7db9dcd6895 Patch
https://git.kernel.org/stable/c/21e5fa4688e1a4d3db6b72216231b24232f75c1d Patch
https://git.kernel.org/stable/c/43f798b9036491fb014b55dd61c4c5c3193267d0 Patch
https://git.kernel.org/stable/c/7070b274c7866a4c5036f8d54fcaf315c64ac33a Patch
https://git.kernel.org/stable/c/7a4b21250bf79eef26543d35bd390448646c536b Patch
https://git.kernel.org/stable/c/ca1f06e72dec41ae4f76e7b1a8a97265447b46ae Patch
https://git.kernel.org/stable/c/d0e214acc59145ce25113f617311aa79dda39cb3 Patch
https://git.kernel.org/stable/c/f06899582ccee09bd85d0696290e3eaca9aa042d Patch
https://git.kernel.org/stable/c/0971126c8164abe2004b8536b49690a0d6005b0a Patch
https://git.kernel.org/stable/c/15641007df0f0d35fa28742b25c2a7db9dcd6895 Patch
https://git.kernel.org/stable/c/21e5fa4688e1a4d3db6b72216231b24232f75c1d Patch
https://git.kernel.org/stable/c/43f798b9036491fb014b55dd61c4c5c3193267d0 Patch
https://git.kernel.org/stable/c/7070b274c7866a4c5036f8d54fcaf315c64ac33a Patch
https://git.kernel.org/stable/c/7a4b21250bf79eef26543d35bd390448646c536b Patch
https://git.kernel.org/stable/c/ca1f06e72dec41ae4f76e7b1a8a97265447b46ae Patch
https://git.kernel.org/stable/c/d0e214acc59145ce25113f617311aa79dda39cb3 Patch
https://git.kernel.org/stable/c/f06899582ccee09bd85d0696290e3eaca9aa042d Patch
https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2024-26883 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2024-26883 weaknesses.

CAPEC-8: Buffer Overflow in an API Call Buffer Overflow in an API Call CAPEC-9: Buffer Overflow in Local Command-Line Utilities Buffer Overflow in Local Command-Line Utilities CAPEC-10: Buffer Overflow via Environment Variables Buffer Overflow via Environment Variables CAPEC-14: Client-side Injection-induced Buffer Overflow Client-side Injection-induced Buffer Overflow CAPEC-24: Filter Failure through Buffer Overflow Filter Failure through Buffer Overflow CAPEC-42: MIME Conversion MIME Conversion CAPEC-44: Overflow Binary Resource File Overflow Binary Resource File CAPEC-45: Buffer Overflow via Symbolic Links Buffer Overflow via Symbolic Links CAPEC-46: Overflow Variables and Tags Overflow Variables and Tags CAPEC-47: Buffer Overflow via Parameter Expansion Buffer Overflow via Parameter Expansion CAPEC-100: Overflow Buffers Overflow Buffers CAPEC-123: Buffer Manipulation Buffer Manipulation

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2024-26883 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2024-26883 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Modified Analysis by [email protected]

    Mar. 07, 2025

    Action Type Old Value New Value
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
    Changed CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 from (excluding) 6.7.11 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 from (excluding) 6.6.23 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 from (excluding) 6.1.83 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 from (excluding) 5.15.153 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 from (excluding) 5.10.214 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 from (excluding) 5.4.273 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (excluding) 4.19.311 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.8 from (excluding) 6.8.2 OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 from (excluding) 6.7.11 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 from (excluding) 6.6.23 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 from (excluding) 6.1.83 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 from (excluding) 5.15.153 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.8 from (excluding) 6.8.2 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.14.222 from (excluding) 4.15 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.10.17 from (excluding) 5.10.214 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.4.99 from (excluding) 5.4.273 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.19.177 from (excluding) 4.19.311 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.9.258 from (excluding) 4.10
    Added Reference Type CVE: https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html Types: Mailing List
    Added Reference Type CVE: https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html Types: Mailing List
  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://git.kernel.org/stable/c/0971126c8164abe2004b8536b49690a0d6005b0a
    Added Reference https://git.kernel.org/stable/c/15641007df0f0d35fa28742b25c2a7db9dcd6895
    Added Reference https://git.kernel.org/stable/c/21e5fa4688e1a4d3db6b72216231b24232f75c1d
    Added Reference https://git.kernel.org/stable/c/43f798b9036491fb014b55dd61c4c5c3193267d0
    Added Reference https://git.kernel.org/stable/c/7070b274c7866a4c5036f8d54fcaf315c64ac33a
    Added Reference https://git.kernel.org/stable/c/7a4b21250bf79eef26543d35bd390448646c536b
    Added Reference https://git.kernel.org/stable/c/ca1f06e72dec41ae4f76e7b1a8a97265447b46ae
    Added Reference https://git.kernel.org/stable/c/d0e214acc59145ce25113f617311aa79dda39cb3
    Added Reference https://git.kernel.org/stable/c/f06899582ccee09bd85d0696290e3eaca9aa042d
    Added Reference https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
    Added Reference https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Nov. 05, 2024

    Action Type Old Value New Value
    Removed Reference kernel.org https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
    Removed Reference kernel.org https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Jun. 27, 2024

    Action Type Old Value New Value
    Added Reference kernel.org https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html [No types assigned]
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Jun. 25, 2024

    Action Type Old Value New Value
    Added Reference kernel.org https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html [No types assigned]
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    May. 29, 2024

    Action Type Old Value New Value
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Apr. 29, 2024

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://git.kernel.org/stable/c/0971126c8164abe2004b8536b49690a0d6005b0a No Types Assigned https://git.kernel.org/stable/c/0971126c8164abe2004b8536b49690a0d6005b0a Patch
    Changed Reference Type https://git.kernel.org/stable/c/15641007df0f0d35fa28742b25c2a7db9dcd6895 No Types Assigned https://git.kernel.org/stable/c/15641007df0f0d35fa28742b25c2a7db9dcd6895 Patch
    Changed Reference Type https://git.kernel.org/stable/c/21e5fa4688e1a4d3db6b72216231b24232f75c1d No Types Assigned https://git.kernel.org/stable/c/21e5fa4688e1a4d3db6b72216231b24232f75c1d Patch
    Changed Reference Type https://git.kernel.org/stable/c/43f798b9036491fb014b55dd61c4c5c3193267d0 No Types Assigned https://git.kernel.org/stable/c/43f798b9036491fb014b55dd61c4c5c3193267d0 Patch
    Changed Reference Type https://git.kernel.org/stable/c/7070b274c7866a4c5036f8d54fcaf315c64ac33a No Types Assigned https://git.kernel.org/stable/c/7070b274c7866a4c5036f8d54fcaf315c64ac33a Patch
    Changed Reference Type https://git.kernel.org/stable/c/7a4b21250bf79eef26543d35bd390448646c536b No Types Assigned https://git.kernel.org/stable/c/7a4b21250bf79eef26543d35bd390448646c536b Patch
    Changed Reference Type https://git.kernel.org/stable/c/ca1f06e72dec41ae4f76e7b1a8a97265447b46ae No Types Assigned https://git.kernel.org/stable/c/ca1f06e72dec41ae4f76e7b1a8a97265447b46ae Patch
    Changed Reference Type https://git.kernel.org/stable/c/d0e214acc59145ce25113f617311aa79dda39cb3 No Types Assigned https://git.kernel.org/stable/c/d0e214acc59145ce25113f617311aa79dda39cb3 Patch
    Changed Reference Type https://git.kernel.org/stable/c/f06899582ccee09bd85d0696290e3eaca9aa042d No Types Assigned https://git.kernel.org/stable/c/f06899582ccee09bd85d0696290e3eaca9aa042d Patch
    Added CWE NIST CWE-119
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 4.19.311 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.273 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.214 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.153 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.83 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.23 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.7.11 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.8 up to (excluding) 6.8.2
  • CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Apr. 17, 2024

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: bpf: Fix stackmap overflow check on 32-bit arches The stackmap code relies on roundup_pow_of_two() to compute the number of hash buckets, and contains an overflow check by checking if the resulting value is 0. However, on 32-bit arches, the roundup code itself can overflow by doing a 32-bit left-shift of an unsigned long value, which is undefined behaviour, so it is not guaranteed to truncate neatly. This was triggered by syzbot on the DEVMAP_HASH type, which contains the same check, copied from the hashtab code. The commit in the fixes tag actually attempted to fix this, but the fix did not account for the UB, so the fix only works on CPUs where an overflow does result in a neat truncation to zero, which is not guaranteed. Checking the value before rounding does not have this problem.
    Added Reference kernel.org https://git.kernel.org/stable/c/d0e214acc59145ce25113f617311aa79dda39cb3 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/21e5fa4688e1a4d3db6b72216231b24232f75c1d [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/15641007df0f0d35fa28742b25c2a7db9dcd6895 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/ca1f06e72dec41ae4f76e7b1a8a97265447b46ae [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/f06899582ccee09bd85d0696290e3eaca9aa042d [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/7070b274c7866a4c5036f8d54fcaf315c64ac33a [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/43f798b9036491fb014b55dd61c4c5c3193267d0 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/0971126c8164abe2004b8536b49690a0d6005b0a [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/7a4b21250bf79eef26543d35bd390448646c536b [No types assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 7.8
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact