CVE-2024-50135

nvme-pci: fix race condition between reset and nvme_dev_disable()

Severity Score

"-"

*CVSS v-

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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

nvme-pci: fix race condition between reset and nvme_dev_disable()

nvme_dev_disable() modifies the dev->online_queues field, therefore
nvme_pci_update_nr_queues() should avoid racing against it, otherwise
we could end up passing invalid values to blk_mq_update_nr_hw_queues().

WARNING: CPU: 39 PID: 61303 at drivers/pci/msi/api.c:347
pci_irq_get_affinity+0x187/0x210
Workqueue: nvme-reset-wq nvme_reset_work [nvme]
RIP: 0010:pci_irq_get_affinity+0x187/0x210
Call Trace:
<TASK>
? blk_mq_pci_map_queues+0x87/0x3c0
? pci_irq_get_affinity+0x187/0x210
blk_mq_pci_map_queues+0x87/0x3c0
nvme_pci_map_queues+0x189/0x460 [nvme]
blk_mq_update_nr_hw_queues+0x2a/0x40
nvme_reset_work+0x1be/0x2a0 [nvme]

Fix the bug by locking the shutdown_lock mutex before using
dev->online_queues. Give up if nvme_dev_disable() is running or if
it has been executed already.

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: nvme-pci: corrige la condición de ejecución entre reset y nvme_dev_disable() nvme_dev_disable() modifica el campo dev->online_queues, por lo tanto, nvme_pci_update_nr_queues() debería evitar competir contra él, de lo contrario podríamos terminar pasando valores no válidos a blk_mq_update_nr_hw_queues(). ADVERTENCIA: CPU: 39 PID: 61303 en drivers/pci/msi/api.c:347 pci_irq_get_affinity+0x187/0x210 Workqueue: nvme-reset-wq nvme_reset_work [nvme] RIP: 0010:pci_irq_get_affinity+0x187/0x210 Seguimiento de llamadas: ? blk_mq_pci_map_queues+0x87/0x3c0 ? pci_irq_get_affinity+0x187/0x210 blk_mq_pci_map_queues+0x87/0x3c0 nvme_pci_map_queues+0x189/0x460 [nvme] blk_mq_update_nr_hw_queues+0x2a/0x40 nvme_reset_work+0x1be/0x2a0 [nvme] Corrija el error bloqueando el mutex shutoff_lock antes de usar dev->online_queues. Abandone si nvme_dev_disable() se está ejecutando o si ya se ha ejecutado.

*Credits: N/A

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Timeline

2024-10-21 CVE Reserved
2024-11-05 CVE Published
2024-11-05 CVE Updated
---------- EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (4)

URL	Tag	Source
https://git.kernel.org/stable/c/949928c1c731417cc0f070912c63878b62b544f4	Vuln. Introduced

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/stable/c/4ed32cc0939b64e3d7b48c8c0d63ea038775f304	2024-11-01
https://git.kernel.org/stable/c/b33e49a5f254474b33ce98fd45dd0ffdc247a0be	2024-11-01
https://git.kernel.org/stable/c/26bc0a81f64ce00fc4342c38eeb2eddaad084dd2	2024-10-17

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"				>= 4.6 < 6.6.59 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.6 < 6.6.59"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 4.6 < 6.11.6 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.6 < 6.11.6"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 4.6 < 6.12-rc4 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.6 < 6.12-rc4"		en		Affected