CVE-2025-39911
Full vulnerability record from the local CVENow database.
Description
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
HIGH
CVSS score
7.8
(v3.1)
Vulnerability status
Analyzed
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2025-10-01 08:15:34.140000
Last modified
2026-10-19 21:10:00.160000
View original CVE JSON
{
"id": "CVE-2025-39911",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2025-10-01T08:15:34.140",
"lastModified": "2026-10-19T21:10:00.160",
"vulnStatus": "Analyzed",
"cveTags": [],
"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 <TASK>\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 </TASK>\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: corrección de la liberación 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 iteración 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'Intentando liberar IRQ 173 ya liberada'\nWARNING: CPU: 25 PID: 1091 en kernel/irq/manage.c:1829 __free_irq+0x192/0x2c0\nMódulos 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 <TASK>\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 </TASK>\n---[ fin de traza 0000000000000000 ]---\n\nUtilice el mismo dev_id para free_irq() que para request_irq().\n\nProbé esto insertando código para que fallara intencionalmente."
}
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"id": "CVE-2025-39911",
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