nvmet-fc: move lsop put work to nvmet_fc_ls_req_op
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 3 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.
Summary
In the Linux kernel, the following vulnerability has been resolved: nvmet-fc: move lsop put work to nvmet_fc_ls_req_op It’s possible for more than one async command to be in flight from __nvmet_fc_send_ls_req. For each command, a tgtport reference is taken. In the current code, only one put work item is queued at a time, which results in a leaked reference. To fix this, move the work item to the nvmet_fc_ls_req_op struct, which already tracks all resources related to the command.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- 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 | 5.15.150 to before 5.15.195; 6.1.80 to before 6.1.156; 6.6.19 to before 6.6.112; 6.7.7 to before 6.8 | 5.15.195, 6.1.156, 6.6.112, 6.8 | Patch available | CNA |
| Linux | Linux | 6.8 and later | 5.15.195, 6.1.156, 6.6.112, 6.12.53, 6.17.3, 6.18 | Patch available | CNA |
- Linux VendorLinux Affected 5.15.150 to before 5.15.195; 6.1.80 to before 6.1.156; 6.6.19 to before 6.6.112; 6.7.7 to before 6.8 Fixed in 5.15.195, 6.1.156, 6.6.112, 6.8 Patch available CNA
- Linux VendorLinux Affected 6.8 and later Fixed in 5.15.195, 6.1.156, 6.6.112, 6.12.53, 6.17.3, 6.18 Patch available CNA
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.15.195, 6.1.156, 6.6.112, 6.8
- Fix · CNA Linux (Linux) Fixed in 5.15.195, 6.1.156, 6.6.112, 6.12.53, 6.17.3, 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: Fix deferred |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
Not affected: 2 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
Timeline
- 2026-10-02 Threatist record created from CVE-2025-40171
- 2026-10-03 Alias added: GHSA-j97x-pm24-3q67
- 2026-10-16 CISA SSVC decision points changed
References
Other 6
- https://git.kernel.org/stable/c/11269c08013f4ee8b8f5edc6c56700acb34092d0
- https://git.kernel.org/stable/c/a28112cc55013cd8cbd5d36b5115a5b851151bd9
- https://git.kernel.org/stable/c/060ecc81240ef9d60d9485a3a5eb55a0d6e7a25c
- https://git.kernel.org/stable/c/7331925c247b03b7767b8cd93cfe1b7aa2377850
- https://git.kernel.org/stable/c/7a619f8c869117ffed08365b377f66b7e1d941b4
- https://git.kernel.org/stable/c/db5a5406fb7e5337a074385c7a3e53c77f2c1bd3
More Linux vulnerabilities
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- 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-2025-40171 · CVE Program
- CVE-2025-40171 · NVD
- FIRST EPSS
- GHSA-j97x-pm24-3q67 · GitHub Advisory Database · CC BY 4.0
- CVE-2025-40171 · 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