// For flags

CVE-2021-47499

iio: accel: kxcjk-1013: Fix possible memory leak in probe and remove

Severity Score

5.5
*CVSS v3

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: iio: accel: kxcjk-1013: Fix possible memory leak in probe and remove When ACPI type is ACPI_SMO8500, the data->dready_trig will not be set, the
memory allocated by iio_triggered_buffer_setup() will not be freed, and cause
memory leak as follows: unreferenced object 0xffff888009551400 (size 512): comm "i2c-SMO8500-125", pid 911, jiffies 4294911787 (age 83.852s) hex dump (first 32 bytes): 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 20 e2 e5 c0 ff ff ff ff ........ ....... backtrace: [<0000000041ce75ee>] kmem_cache_alloc_trace+0x16d/0x360 [<000000000aeb17b0>] iio_kfifo_allocate+0x41/0x130 [kfifo_buf] [<000000004b40c1f5>] iio_triggered_buffer_setup_ext+0x2c/0x210 [industrialio_triggered_buffer] [<000000004375b15f>] kxcjk1013_probe+0x10c3/0x1d81 [kxcjk_1013] Fix it by remove data->dready_trig condition in probe and remove.

En el kernel de Linux, se resolvió la siguiente vulnerabilidad: iio: accel: kxcjk-1013: corrija la posible pérdida de memoria en la sonda y elimínela. Cuando el tipo ACPI es ACPI_SMO8500, data-&gt;dready_trig no se configurará, la memoria asignada por iio_triggered_buffer_setup( ) no se liberará y provocará una pérdida de memoria de la siguiente manera: objeto sin referencia 0xffff888009551400 (tamaño 512): comm "i2c-SMO8500-125", pid 911, jiffies 4294911787 (edad 83,852 s) volcado hexadecimal (primeros 32 bytes): 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 20 e2 e5 c0 ff ff ff ff .... .... ....... retroceso: [&lt;0000000041ce75ee&gt;] kmem_cache_alloc_trace+0x16d/0x360 [&lt;000000000aeb17b0&gt;] iio_kfifo_allocate+0x41/0x130 [kfifo_buf] [&lt;000000004b40c1f5&gt;] ed_buffer_setup_ext+0x2c/0x210 [industrialio_triggered_buffer] [ &lt;000000004375b15f&gt;] kxcjk1013_probe+0x10c3/0x1d81 [kxcjk_1013] Solucionarlo eliminando la condición data-&gt;dready_trig en la sonda y eliminándola.

In the Linux kernel, the following vulnerability has been resolved: iio: accel: kxcjk-1013: Fix possible memory leak in probe and remove When ACPI type is ACPI_SMO8500, the data->dready_trig will not be set, the memory allocated by iio_triggered_buffer_setup() will not be freed, and cause memory leak as follows: unreferenced object 0xffff888009551400 (size 512): comm "i2c-SMO8500-125", pid 911, jiffies 4294911787 (age 83.852s) hex dump (first 32 bytes): 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 20 e2 e5 c0 ff ff ff ff ........ ....... backtrace: [<0000000041ce75ee>] kmem_cache_alloc_trace+0x16d/0x360 [<000000000aeb17b0>] iio_kfifo_allocate+0x41/0x130 [kfifo_buf] [<000000004b40c1f5>] iio_triggered_buffer_setup_ext+0x2c/0x210 [industrialio_triggered_buffer] [<000000004375b15f>] kxcjk1013_probe+0x10c3/0x1d81 [kxcjk_1013] Fix it by remove data->dready_trig condition in probe and remove.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
Single
Confidentiality
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-05-22 CVE Reserved
  • 2024-05-24 CVE Published
  • 2024-12-19 CVE Updated
  • 2025-03-20 EPSS 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"
 >= 4.2 < 4.4.295
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.2 < 4.4.295"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 4.2 < 4.9.293
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.2 < 4.9.293"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 4.2 < 4.14.258
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.2 < 4.14.258"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 4.2 < 4.19.221
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.2 < 4.19.221"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 4.2 < 5.4.165
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.2 < 5.4.165"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 4.2 < 5.10.85
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.2 < 5.10.85"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 4.2 < 5.15.8
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.2 < 5.15.8"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 4.2 < 5.16
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.2 < 5.16"
en
Affected