CVE-2024-35816

firewire: ohci: prevent leak of left-over IRQ on unbind

Severity Score

"-"

*CVSS v-

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

In the Linux kernel, the following vulnerability has been resolved:

firewire: ohci: prevent leak of left-over IRQ on unbind

Commit 5a95f1ded28691e6 ("firewire: ohci: use devres for requested IRQ")
also removed the call to free_irq() in pci_remove(), leading to a
leftover irq of devm_request_irq() at pci_disable_msi() in pci_remove()
when unbinding the driver from the device

remove_proc_entry: removing non-empty directory 'irq/136', leaking at
least 'firewire_ohci'
Call Trace:
? remove_proc_entry+0x19c/0x1c0
? __warn+0x81/0x130
? remove_proc_entry+0x19c/0x1c0
? report_bug+0x171/0x1a0
? console_unlock+0x78/0x120
? handle_bug+0x3c/0x80
? exc_invalid_op+0x17/0x70
? asm_exc_invalid_op+0x1a/0x20
? remove_proc_entry+0x19c/0x1c0
unregister_irq_proc+0xf4/0x120
free_desc+0x3d/0xe0
? kfree+0x29f/0x2f0
irq_free_descs+0x47/0x70
msi_domain_free_locked.part.0+0x19d/0x1d0
msi_domain_free_irqs_all_locked+0x81/0xc0
pci_free_msi_irqs+0x12/0x40
pci_disable_msi+0x4c/0x60
pci_remove+0x9d/0xc0 [firewire_ohci
01b483699bebf9cb07a3d69df0aa2bee71db1b26]
pci_device_remove+0x37/0xa0
device_release_driver_internal+0x19f/0x200
unbind_store+0xa1/0xb0

remove irq with devm_free_irq() before pci_disable_msi()
also remove it in fail_msi: of pci_probe() as this would lead to
an identical leak

En el kernel de Linux, se resolvió la siguiente vulnerabilidad: firewire: ohci: evita la fuga de IRQ sobrante al desvincular confirmación5a95f1ded28691e6 ("firewire: ohci: usa devres para IRQ solicitada") también eliminó la llamada a free_irq() en pci_remove (), lo que lleva a un irq sobrante de devm_request_irq() en pci_disable_msi() en pci_remove() al desvincular el controlador del dispositivo remove_proc_entry: eliminando el directorio no vacío 'irq/136', filtrando al menos 'firewire_ohci' Call Trace:? remove_proc_entry+0x19c/0x1c0? __advertir+0x81/0x130 ? remove_proc_entry+0x19c/0x1c0? report_bug+0x171/0x1a0? console_unlock+0x78/0x120? handle_bug+0x3c/0x80? exc_invalid_op+0x17/0x70? asm_exc_invalid_op+0x1a/0x20? remove_proc_entry+0x19c/0x1c0 unregister_irq_proc+0xf4/0x120 free_desc+0x3d/0xe0? kfree+0x29f/0x2f0 irq_free_descs+0x47/0x70 msi_domain_free_locked.part.0+0x19d/0x1d0 msi_domain_free_irqs_all_locked+0x81/0xc0 pci_free_msi_irqs+0x12/0x40 pci_disable_msi+0x4c/0x60 pci_remove+0x9d/0xc0 [firewire_ohci 01b483699bebf9cb07a3d69df0aa2bee71db1b26] pci_device_remove+0x37/0xa0 dispositivo_release_driver_internal+ 0x19f/0x200 unbind_store+0xa1/0xb0 elimina irq con devm_free_irq() antes de pci_disable_msi() también elimínalo en fail_msi: de pci_probe() ya que esto conduciría a una fuga idéntica

*Credits: N/A

CVSS Scores

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-05-17 CVE Reserved
2024-05-17 CVE Published
2024-05-18 EPSS Updated
2024-09-11 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (4)

URL	Tag	Source
https://git.kernel.org/stable/c/5a95f1ded28691e69f7d6718c5dcbc149613d431	Vuln. Introduced

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/stable/c/43c70cbc2502cf2557105c662eeed6a15d082b88	2024-04-03
https://git.kernel.org/stable/c/318f6d53dd425c400e35f1a9b7af682c2c6a66d6	2024-04-03
https://git.kernel.org/stable/c/575801663c7dc38f826212b39e3b91a4a8661c33	2024-03-06

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 6.5 < 6.6.24 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.5 < 6.6.24"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 6.5 < 6.7.12 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.5 < 6.7.12"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 6.5 < 6.8 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.5 < 6.8"		en		Affected