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7.8
HIGH CVSS 3.1
CVE-2025-21914
slimbus: messaging: Free transaction ID in delayed interrupt scenario
Description

In the Linux kernel, the following vulnerability has been resolved: slimbus: messaging: Free transaction ID in delayed interrupt scenario In case of interrupt delay for any reason, slim_do_transfer() returns timeout error but the transaction ID (TID) is not freed. This results into invalid memory access inside qcom_slim_ngd_rx_msgq_cb() due to invalid TID. Fix the issue by freeing the TID in slim_do_transfer() before returning timeout error to avoid invalid memory access. Call trace: __memcpy_fromio+0x20/0x190 qcom_slim_ngd_rx_msgq_cb+0x130/0x290 [slim_qcom_ngd_ctrl] vchan_complete+0x2a0/0x4a0 tasklet_action_common+0x274/0x700 tasklet_action+0x28/0x3c _stext+0x188/0x620 run_ksoftirqd+0x34/0x74 smpboot_thread_fn+0x1d8/0x464 kthread+0x178/0x238 ret_from_fork+0x10/0x20 Code: aa0003e8 91000429 f100044a 3940002b (3800150b) ---[ end trace 0fe00bec2b975c99 ]--- Kernel panic - not syncing: Oops: Fatal exception in interrupt.

INFO

Published Date :

April 1, 2025, 4:15 p.m.

Last Modified :

Nov. 3, 2025, 8:17 p.m.

Remotely Exploit :

No

Source :

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

The following products are affected by CVE-2025-21914 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
Fix Linux kernel memory corruption by freeing transaction IDs in interrupt scenarios.
  • Update the Linux kernel to include the fix.
  • Apply the provided patch to the kernel source.
  • Recompile and install the modified kernel.
  • Reboot the system with the updated kernel.
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-2025-21914.

URL Resource
https://git.kernel.org/stable/c/09d34c4cbc38485c7514069f25348e439555b282 Patch
https://git.kernel.org/stable/c/0c541c8f6da23e0b92f0a6216d899659a7572074 Patch
https://git.kernel.org/stable/c/18ae4cee05c310c299ba75d7477dcf34be67aa16 Patch
https://git.kernel.org/stable/c/6abf3d8bb51cbaf886c3f08109a0462890b10db6 Patch
https://git.kernel.org/stable/c/a32e5198a9134772eb03f7b72a7849094c55bda9 Patch
https://git.kernel.org/stable/c/cec8c0ac173fe5321f03fdb1a09a9cb69bc9a9fe Patch
https://git.kernel.org/stable/c/dcb0d43ba8eb9517e70b1a0e4b0ae0ab657a0e5a Patch
https://git.kernel.org/stable/c/faac8e894014e8167471a8e4a5eb35a8fefbb82a Patch
https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
https://lists.debian.org/debian-lts-announce/2025/05/msg00045.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-2025-21914 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-2025-21914 weaknesses.

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-2025-21914 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-2025-21914 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.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 03, 2025

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
    Added Reference https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html
  • Initial Analysis by [email protected]

    Oct. 31, 2025

    Action Type Old Value New Value
    Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Added CWE CWE-787
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.14:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.179 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.235 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.131 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.16 up to (excluding) 5.4.291 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.83 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.12.19 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.13 up to (excluding) 6.13.7 *cpe:2.3:o:linux:linux_kernel:6.14:rc4:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.14:rc5:*:*:*:*:*:*
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/09d34c4cbc38485c7514069f25348e439555b282 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/0c541c8f6da23e0b92f0a6216d899659a7572074 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/18ae4cee05c310c299ba75d7477dcf34be67aa16 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/6abf3d8bb51cbaf886c3f08109a0462890b10db6 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/a32e5198a9134772eb03f7b72a7849094c55bda9 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/cec8c0ac173fe5321f03fdb1a09a9cb69bc9a9fe Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/dcb0d43ba8eb9517e70b1a0e4b0ae0ab657a0e5a Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/faac8e894014e8167471a8e4a5eb35a8fefbb82a Types: Patch
  • New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Apr. 01, 2025

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: slimbus: messaging: Free transaction ID in delayed interrupt scenario In case of interrupt delay for any reason, slim_do_transfer() returns timeout error but the transaction ID (TID) is not freed. This results into invalid memory access inside qcom_slim_ngd_rx_msgq_cb() due to invalid TID. Fix the issue by freeing the TID in slim_do_transfer() before returning timeout error to avoid invalid memory access. Call trace: __memcpy_fromio+0x20/0x190 qcom_slim_ngd_rx_msgq_cb+0x130/0x290 [slim_qcom_ngd_ctrl] vchan_complete+0x2a0/0x4a0 tasklet_action_common+0x274/0x700 tasklet_action+0x28/0x3c _stext+0x188/0x620 run_ksoftirqd+0x34/0x74 smpboot_thread_fn+0x1d8/0x464 kthread+0x178/0x238 ret_from_fork+0x10/0x20 Code: aa0003e8 91000429 f100044a 3940002b (3800150b) ---[ end trace 0fe00bec2b975c99 ]--- Kernel panic - not syncing: Oops: Fatal exception in interrupt.
    Added Reference https://git.kernel.org/stable/c/09d34c4cbc38485c7514069f25348e439555b282
    Added Reference https://git.kernel.org/stable/c/0c541c8f6da23e0b92f0a6216d899659a7572074
    Added Reference https://git.kernel.org/stable/c/18ae4cee05c310c299ba75d7477dcf34be67aa16
    Added Reference https://git.kernel.org/stable/c/6abf3d8bb51cbaf886c3f08109a0462890b10db6
    Added Reference https://git.kernel.org/stable/c/a32e5198a9134772eb03f7b72a7849094c55bda9
    Added Reference https://git.kernel.org/stable/c/cec8c0ac173fe5321f03fdb1a09a9cb69bc9a9fe
    Added Reference https://git.kernel.org/stable/c/dcb0d43ba8eb9517e70b1a0e4b0ae0ab657a0e5a
    Added Reference https://git.kernel.org/stable/c/faac8e894014e8167471a8e4a5eb35a8fefbb82a
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