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CVE-2025-40259
scsi: sg: Do not sleep in atomic context
Description

In the Linux kernel, the following vulnerability has been resolved: scsi: sg: Do not sleep in atomic context sg_finish_rem_req() calls blk_rq_unmap_user(). The latter function may sleep. Hence, call sg_finish_rem_req() with interrupts enabled instead of disabled.

INFO

Published Date :

Dec. 4, 2025, 4:16 p.m.

Last Modified :

Dec. 6, 2025, 10:15 p.m.

Remotely Exploit :

No

Source :

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

The following products are affected by CVE-2025-40259 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
Solution
Address sleeping in atomic context by enabling interrupts.
  • Modify sg_finish_rem_req to enable interrupts.
  • Ensure blk_rq_unmap_user does not sleep.
  • Apply the resolved Linux kernel patch.
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-2025-40259.

URL Resource
https://git.kernel.org/stable/c/109afbd88ecc46b6cc7551367222387e97999765
https://git.kernel.org/stable/c/11eeee00c94d770d4e45364060b5f1526dfe567b
https://git.kernel.org/stable/c/3dfd520c3b4ffe69e0630c580717d40447ab842f
https://git.kernel.org/stable/c/6983d8375c040bb449d2187f4a57a20de01244fe
https://git.kernel.org/stable/c/90449f2d1e1f020835cba5417234636937dd657e
https://git.kernel.org/stable/c/b2c0340cfa25c5c1f65e8590cc1a2dc97d14ef0f
https://git.kernel.org/stable/c/b343cee5df7e750d9033fba33e96fc4399fa88a5
https://git.kernel.org/stable/c/db6ac8703ab2b473e1ec845f57f6dd961a388d9f
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-40259 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-2025-40259 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-2025-40259 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-2025-40259 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 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Dec. 06, 2025

    Action Type Old Value New Value
    Added Reference https://git.kernel.org/stable/c/109afbd88ecc46b6cc7551367222387e97999765
    Added Reference https://git.kernel.org/stable/c/3dfd520c3b4ffe69e0630c580717d40447ab842f
    Added Reference https://git.kernel.org/stable/c/db6ac8703ab2b473e1ec845f57f6dd961a388d9f
  • New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Dec. 04, 2025

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: scsi: sg: Do not sleep in atomic context sg_finish_rem_req() calls blk_rq_unmap_user(). The latter function may sleep. Hence, call sg_finish_rem_req() with interrupts enabled instead of disabled.
    Added Reference https://git.kernel.org/stable/c/11eeee00c94d770d4e45364060b5f1526dfe567b
    Added Reference https://git.kernel.org/stable/c/6983d8375c040bb449d2187f4a57a20de01244fe
    Added Reference https://git.kernel.org/stable/c/90449f2d1e1f020835cba5417234636937dd657e
    Added Reference https://git.kernel.org/stable/c/b2c0340cfa25c5c1f65e8590cc1a2dc97d14ef0f
    Added Reference https://git.kernel.org/stable/c/b343cee5df7e750d9033fba33e96fc4399fa88a5
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
No CVSS metrics available for this vulnerability.