CVE-2025-40259
Not scored
scsi: sg: Do not sleep in atomic context
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.
Exploit probability
0.2%
Published
December 4, 2025
Required by
Not available
Last source change
August 12, 2026
02 / AFFECTED SOFTWARE
Affected packages
890 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
Open Source Vulnerabilities
CVE-2025-40259
View original source
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.
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- 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
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/40xxx/CVE-2025-40259.json
- https://nvd.nist.gov/vuln/detail/CVE-2025-40259