CVE-2025-40259

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.

Package Linux Kernel
Published 2025-12-04
Last modified 2026-04-15
Patch available
Yes

Affected versions

Linux kernel versions 3.16.85, 3.18.101, 4.1.52, 4.4.123, 4.9.89, 4.12 and later are affected. Fixed in 5.4.302, 5.10.247, 5.15.197, 6.1.159, 6.6.118, 6.12.60, 6.17.10, 6.18 and their respective stable series.

Affected from
≥ 3.16.85 ≥ 3.18.101 ≥ 4.1.52 ≥ 4.4.123 ≥ 4.9.89 ≥ 4.12
Fixed in
✓ 5.4.302 5.4.x ✓ 5.10.247 5.10.x ✓ 5.15.197 5.15.x ✓ 6.1.159 6.1.x ✓ 6.6.118 6.6.x ✓ 6.12.60 6.12.x ✓ 6.17.10 6.17.x ✓ 6.18

References

The following references provide additional information about CVE-2025-40259 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

8 patch commits total View all on NVD

Frequently asked questions

  • What is CVE-2025-40259?

    CVE-2025-40259 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 3.16.85 onward and has been patched in 5.4.302, 5.10.247, 5.15.197 and others. CVE-2025-40259 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • Is there a patch available for CVE-2025-40259?

    Yes — CVE-2025-40259 has been patched. Fixed versions include 5.4.302, 5.10.247, 5.15.197 and others. If you are running Linux kernel 3.16.85 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2025-40259 actively exploited?

    No — CVE-2025-40259 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

Back to
All CVEs
View on
NVD / NIST