scsi: sg: Do not sleep in atomic context
Priority LOW 22Published · Updated
Key facts
- Attack vector
- —
- Privileges required
- —
- User interaction
- —
- Attack complexity
- —
- Impact type
- —
- Confidentiality · integrity · availability
- —
- Fix status
- Partial Red Hat: 4 without a fix
No CVSS vector from any source. Fix status from CNA and Red Hat.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00216 12th percentileScored 2026-11-07
Fix Partial Linux (Linux): 3.17, 3.19, 4.2 +10Red Hat: 4 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 3.16.85 to before 3.17; 3.18.101 to before 3.19; 4.1.52 to before 4.2; 4.4.123 to before 4.5; 4.9.89 to before 4.10 | 3.17, 3.19, 4.2, 4.5, 4.10 | Patch available | CNA |
| Linux | Linux | 4.12 and later | 5.4.302, 5.10.247, 5.15.197, 6.1.159, 6.6.118, 6.12.60, 6.17.10, 6.18 | Patch available | CNA |
- Linux VendorLinux Affected 3.16.85 to before 3.17; 3.18.101 to before 3.19; 4.1.52 to before 4.2; 4.4.123 to before 4.5; 4.9.89 to before 4.10 Fixed in 3.17, 3.19, 4.2, 4.5, 4.10 Patch available CNA
- Linux VendorLinux Affected 4.12 and later 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 Patch available CNA
Remediation
- Fix · CNA Linux (Linux) Fixed in 3.17, 3.19, 4.2, 4.5, 4.10
- Fix · CNA Linux (Linux) 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
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet |
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 8 | Affected | No fix yet |
| Red Hat Enterprise Linux 9 | Affected | No fix yet |
Not affected: 1 product
- Red Hat Enterprise Linux 7
Timeline
- 2026-10-02 Threatist record created from CVE-2025-40259
- 2026-10-03 Alias added: GHSA-4cjv-m44p-782f
References
Other 8
- https://git.kernel.org/stable/c/11eeee00c94d770d4e45364060b5f1526dfe567b
- https://git.kernel.org/stable/c/db6ac8703ab2b473e1ec845f57f6dd961a388d9f
- https://git.kernel.org/stable/c/109afbd88ecc46b6cc7551367222387e97999765
- https://git.kernel.org/stable/c/3dfd520c3b4ffe69e0630c580717d40447ab842f
- https://git.kernel.org/stable/c/b343cee5df7e750d9033fba33e96fc4399fa88a5
- https://git.kernel.org/stable/c/b2c0340cfa25c5c1f65e8590cc1a2dc97d14ef0f
- https://git.kernel.org/stable/c/6983d8375c040bb449d2187f4a57a20de01244fe
- https://git.kernel.org/stable/c/90449f2d1e1f020835cba5417234636937dd657e
More Linux vulnerabilities
- TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
- TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
- TI-2021-02452 Incorrect authorization in Ubuntu linux kernel KEVCVSS 3.1HIGH 8.8
- TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
- TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
Sources
- CVE-2025-40259 · CVE Program
- CVE-2025-40259 · NVD
- FIRST EPSS
- GHSA-4cjv-m44p-782f · GitHub Advisory Database · CC BY 4.0
- CVE-2025-40259 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences