// For flags

CVE-2024-38634

serial: max3100: Lock port->lock when calling uart_handle_cts_change()

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:

serial: max3100: Lock port->lock when calling uart_handle_cts_change()

uart_handle_cts_change() has to be called with port lock taken,
Since we run it in a separate work, the lock may not be taken at
the time of running. Make sure that it's taken by explicitly doing
that. Without it we got a splat:

WARNING: CPU: 0 PID: 10 at drivers/tty/serial/serial_core.c:3491 uart_handle_cts_change+0xa6/0xb0
...
Workqueue: max3100-0 max3100_work [max3100]
RIP: 0010:uart_handle_cts_change+0xa6/0xb0
...
max3100_handlerx+0xc5/0x110 [max3100]
max3100_work+0x12a/0x340 [max3100]

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: serial: max3100: Bloquear puerto->bloquear al llamar a uart_handle_cts_change() uart_handle_cts_change() debe llamarse con el bloqueo de puerto tomado. Dado que lo ejecutamos en un trabajo separado, el bloqueo puede No se tomará en el momento de correr. Asegúrese de que se tome haciéndolo explícitamente. Sin él, tenemos un símbolo: ADVERTENCIA: CPU: 0 PID: 10 en drivers/tty/serial/serial_core.c:3491 uart_handle_cts_change+0xa6/0xb0 ... Workqueue: max3100-0 max3100_work [max3100] RIP: 0010:uart_handle_cts_change+ 0xa6/0xb0 ... max3100_handlerx+0xc5/0x110 [max3100] max3100_work+0x12a/0x340 [max3100]

*Credits: N/A
CVSS Scores
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Scope
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Confidentiality
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* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-06-18 CVE Reserved
  • 2024-06-21 CVE Published
  • 2024-06-22 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"
 >= 2.6.30 < 4.19.316
Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.30 < 4.19.316"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 2.6.30 < 5.4.278
Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.30 < 5.4.278"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 2.6.30 < 5.10.219
Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.30 < 5.10.219"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 2.6.30 < 5.15.161
Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.30 < 5.15.161"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 2.6.30 < 6.1.93
Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.30 < 6.1.93"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 2.6.30 < 6.6.33
Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.30 < 6.6.33"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 2.6.30 < 6.9.4
Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.30 < 6.9.4"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 2.6.30 < 6.10
Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.30 < 6.10"
en
Affected