// For flags

CVE-2024-26876

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

Severity Score

"-"
*CVSS v-

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*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
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-02-19 CVE Reserved
  • 2024-04-17 CVE Published
  • 2024-04-18 EPSS Updated
  • 2024-08-02 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
CAPEC
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 < 6.7.11
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