CVE-2024-26876

drm/bridge: adv7511: fix crash on irq during probe

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:

drm/bridge: adv7511: fix crash on irq during probe

Moved IRQ registration down to end of adv7511_probe().

If an IRQ already is pending during adv7511_probe
(before adv7511_cec_init) then cec_received_msg_ts
could crash using uninitialized data:

Unable to handle kernel read from unreadable memory at virtual address 00000000000003d5
Internal error: Oops: 96000004 [#1] PREEMPT_RT SMP
Call trace:
cec_received_msg_ts+0x48/0x990 [cec]
adv7511_cec_irq_process+0x1cc/0x308 [adv7511]
adv7511_irq_process+0xd8/0x120 [adv7511]
adv7511_irq_handler+0x1c/0x30 [adv7511]
irq_thread_fn+0x30/0xa0
irq_thread+0x14c/0x238
kthread+0x190/0x1a8

En el kernel de Linux, se resolvió la siguiente vulnerabilidad: drm/bridge: adv7511: corrige el fallo en irq durante la sonda Se movió el registro de IRQ al final de adv7511_probe(). Si ya hay una IRQ pendiente durante adv7511_probe (antes de adv7511_cec_init), entonces cec_received_msg_ts podría fallar usando datos no inicializados: No se puede manejar la lectura del kernel desde memoria ilegible en la dirección virtual 00000000000003d5 Error interno: Ups: 96000004 [#1] PREEMPT_RT SMP Seguimiento de llamadas: _ts+0x48 /0x990 [cec] adv7511_cec_irq_process+0x1cc/0x308 [adv7511] adv7511_irq_process+0xd8/0x120 [adv7511] adv7511_irq_handler+0x1c/0x30 [adv7511] irq_thread_fn+0x30/0xa0 leer+0x14c/0x238 khilo+0x190/0x1a8

*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

2024-02-19 CVE Reserved
2024-04-17 CVE Published
2024-04-18 EPSS Updated
2024-12-19 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (5)

URL	Tag	Source
https://git.kernel.org/stable/c/3b1b975003e4a3da4b93ab032487a3ae4afca7b5	Vuln. Introduced

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/stable/c/50f4b57e9a9db4ede9294f39b9e75b5f26bae9b7	2024-10-10
https://git.kernel.org/stable/c/955c1252930677762e0db2b6b9e36938c887445c	2024-03-26
https://git.kernel.org/stable/c/28a94271bd50e4cf498df0381f776f8ea40a289e	2024-03-26
https://git.kernel.org/stable/c/aeedaee5ef5468caf59e2bb1265c2116e0c9a924	2024-02-21

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"				>= 4.15 < 6.6.55 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.15 < 6.6.55"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 4.15 < 6.7.11 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.15 < 6.7.11"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 4.15 < 6.8.2 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.15 < 6.8.2"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 4.15 < 6.9 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.15 < 6.9"		en		Affected