CVE-2025-39911 (GCVE-0-2025-39911)
Vulnerability from cvelistv5 – Published: 2025-10-01 07:44 – Updated: 2026-06-11 18:44
VLAI
EPSS
VEX
Title
i40e: fix IRQ freeing in i40e_vsi_request_irq_msix error path
Summary
In the Linux kernel, the following vulnerability has been resolved:
i40e: fix IRQ freeing in i40e_vsi_request_irq_msix error path
If request_irq() in i40e_vsi_request_irq_msix() fails in an iteration
later than the first, the error path wants to free the IRQs requested
so far. However, it uses the wrong dev_id argument for free_irq(), so
it does not free the IRQs correctly and instead triggers the warning:
Trying to free already-free IRQ 173
WARNING: CPU: 25 PID: 1091 at kernel/irq/manage.c:1829 __free_irq+0x192/0x2c0
Modules linked in: i40e(+) [...]
CPU: 25 UID: 0 PID: 1091 Comm: NetworkManager Not tainted 6.17.0-rc1+ #1 PREEMPT(lazy)
Hardware name: [...]
RIP: 0010:__free_irq+0x192/0x2c0
[...]
Call Trace:
<TASK>
free_irq+0x32/0x70
i40e_vsi_request_irq_msix.cold+0x63/0x8b [i40e]
i40e_vsi_request_irq+0x79/0x80 [i40e]
i40e_vsi_open+0x21f/0x2f0 [i40e]
i40e_open+0x63/0x130 [i40e]
__dev_open+0xfc/0x210
__dev_change_flags+0x1fc/0x240
netif_change_flags+0x27/0x70
do_setlink.isra.0+0x341/0xc70
rtnl_newlink+0x468/0x860
rtnetlink_rcv_msg+0x375/0x450
netlink_rcv_skb+0x5c/0x110
netlink_unicast+0x288/0x3c0
netlink_sendmsg+0x20d/0x430
____sys_sendmsg+0x3a2/0x3d0
___sys_sendmsg+0x99/0xe0
__sys_sendmsg+0x8a/0xf0
do_syscall_64+0x82/0x2c0
entry_SYSCALL_64_after_hwframe+0x76/0x7e
[...]
</TASK>
---[ end trace 0000000000000000 ]---
Use the same dev_id for free_irq() as for request_irq().
I tested this with inserting code to fail intentionally.
Severity
No CVSS data available.
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-10 20:40 UTC
Assigner
References
9 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
493fb30011b3ab5173cef96f1d1ce126da051792 , < 13ab9adef3cd386511c930a9660ae06595007f89
(git)
Affected: 493fb30011b3ab5173cef96f1d1ce126da051792 , < 6e4016c0dca53afc71e3b99e24252b63417395df (git) Affected: 493fb30011b3ab5173cef96f1d1ce126da051792 , < b9721a023df38cf44a88f2739b4cf51efd051f85 (git) Affected: 493fb30011b3ab5173cef96f1d1ce126da051792 , < b905b2acb3a0bbb08ad9be9984d8cdabdf827315 (git) Affected: 493fb30011b3ab5173cef96f1d1ce126da051792 , < 23431998a37764c464737b855c71a81d50992e98 (git) Affected: 493fb30011b3ab5173cef96f1d1ce126da051792 , < a30afd6617c30aaa338d1dbcb1e34e7a1890085c (git) Affected: 493fb30011b3ab5173cef96f1d1ce126da051792 , < c62580674ce5feb1be4f90b5873ff3ce50e0a1db (git) Affected: 493fb30011b3ab5173cef96f1d1ce126da051792 , < 915470e1b44e71d1dd07ee067276f003c3521ee3 (git) |
guessed | |
| Linux | Linux |
Affected:
3.13
Unaffected: 0 , < 3.13 (semver) Unaffected: 5.4.300 , ≤ 5.4.* (semver) Unaffected: 5.10.245 , ≤ 5.10.* (semver) Unaffected: 5.15.194 , ≤ 5.15.* (semver) Unaffected: 6.1.153 , ≤ 6.1.* (semver) Unaffected: 6.6.107 , ≤ 6.6.* (semver) Unaffected: 6.12.48 , ≤ 6.12.* (semver) Unaffected: 6.16.8 , ≤ 6.16.* (semver) Unaffected: 6.17 , ≤ * (original_commit_for_fix) |
guessed |
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"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ni40e: fix IRQ freeing in i40e_vsi_request_irq_msix error path\n\nIf request_irq() in i40e_vsi_request_irq_msix() fails in an iteration\nlater than the first, the error path wants to free the IRQs requested\nso far. However, it uses the wrong dev_id argument for free_irq(), so\nit does not free the IRQs correctly and instead triggers the warning:\n\n Trying to free already-free IRQ 173\n WARNING: CPU: 25 PID: 1091 at kernel/irq/manage.c:1829 __free_irq+0x192/0x2c0\n Modules linked in: i40e(+) [...]\n CPU: 25 UID: 0 PID: 1091 Comm: NetworkManager Not tainted 6.17.0-rc1+ #1 PREEMPT(lazy)\n Hardware name: [...]\n RIP: 0010:__free_irq+0x192/0x2c0\n [...]\n Call Trace:\n \u003cTASK\u003e\n free_irq+0x32/0x70\n i40e_vsi_request_irq_msix.cold+0x63/0x8b [i40e]\n i40e_vsi_request_irq+0x79/0x80 [i40e]\n i40e_vsi_open+0x21f/0x2f0 [i40e]\n i40e_open+0x63/0x130 [i40e]\n __dev_open+0xfc/0x210\n __dev_change_flags+0x1fc/0x240\n netif_change_flags+0x27/0x70\n do_setlink.isra.0+0x341/0xc70\n rtnl_newlink+0x468/0x860\n rtnetlink_rcv_msg+0x375/0x450\n netlink_rcv_skb+0x5c/0x110\n netlink_unicast+0x288/0x3c0\n netlink_sendmsg+0x20d/0x430\n ____sys_sendmsg+0x3a2/0x3d0\n ___sys_sendmsg+0x99/0xe0\n __sys_sendmsg+0x8a/0xf0\n do_syscall_64+0x82/0x2c0\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n [...]\n \u003c/TASK\u003e\n ---[ end trace 0000000000000000 ]---\n\nUse the same dev_id for free_irq() as for request_irq().\n\nI tested this with inserting code to fail intentionally."
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ni40e: correcci\u00f3n de la liberaci\u00f3n de IRQ en la ruta de error de i40e_vsi_request_irq_msix\n\nSi request_irq() en i40e_vsi_request_irq_msix() falla en una iteraci\u00f3n posterior a la primera, la ruta de error intenta liberar las IRQ solicitadas hasta el momento. Sin embargo, utiliza el argumento dev_id incorrecto para free_irq(), por lo que no libera las IRQ correctamente y en su lugar activa la advertencia:\n\n\u0027Intentando liberar IRQ 173 ya liberada\u0027\nWARNING: CPU: 25 PID: 1091 en kernel/irq/manage.c:1829 __free_irq+0x192/0x2c0\nM\u00f3dulos enlazados: i40e(+) [...]\nCPU: 25 UID: 0 PID: 1091 Comm: NetworkManager No contaminado 6.17.0-rc1+ #1 PREEMPT(lazy)\nNombre de hardware: [...]\nRIP: 0010:__free_irq+0x192/0x2c0\n[...]\nTraza de llamada:\n \u003cTASK\u003e\n free_irq+0x32/0x70\n i40e_vsi_request_irq_msix.cold+0x63/0x8b [i40e]\n i40e_vsi_request_irq+0x79/0x80 [i40e]\n i40e_vsi_open+0x21f/0x2f0 [i40e]\n i40e_open+0x63/0x130 [i40e]\n __dev_open+0xfc/0x210\n __dev_change_flags+0x1fc/0x240\n netif_change_flags+0x27/0x70\n do_setlink.isra.0+0x341/0xc70\n rtnl_newlink+0x468/0x860\n rtnetlink_rcv_msg+0x375/0x450\n netlink_rcv_skb+0x5c/0x110\n netlink_unicast+0x288/0x3c0\n netlink_sendmsg+0x20d/0x430\n ____sys_sendmsg+0x3a2/0x3d0\n ___sys_sendmsg+0x99/0xe0\n __sys_sendmsg+0x8a/0xf0\n do_syscall_64+0x82/0x2c0\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n [...]\n \u003c/TASK\u003e\n---[ fin de traza 0000000000000000 ]---\n\nUtilice el mismo dev_id para free_irq() que para request_irq().\n\nProb\u00e9 esto insertando c\u00f3digo para que fallara intencionalmente."
}
],
"id": "CVE-2025-39911",
"lastModified": "2026-10-19T21:10:00.160",
"metrics": {
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"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"current_release_date": "2026-06-30T01:24:44+00:00",
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"product_status:known_affected": "260",
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"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: i40e: fix IRQ freeing in i40e_vsi_request_irq_msix error path",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-39911.json",
"version": "3"
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}
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"state": "PUBLISHED"
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}
}
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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.