CVE-2021-47499
iio: accel: kxcjk-1013: Fix possible memory leak in probe and remove
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
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->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: [<0000000041ce75ee>] kmem_cache_alloc_trace+0x16d/0x360 [<000000000aeb17b0>] iio_kfifo_allocate+0x41/0x130 [kfifo_buf] [<000000004b40c1f5>] ed_buffer_setup_ext+0x2c/0x210 [industrialio_triggered_buffer] [ <000000004375b15f>] kxcjk1013_probe+0x10c3/0x1d81 [kxcjk_1013] Solucionarlo eliminando la condición data->dready_trig en la sonda y eliminándola.
CVSS Scores
SSVC
- Decision:Track
Timeline
- 2024-05-22 CVE Reserved
- 2024-05-24 CVE Published
- 2024-05-25 EPSS Updated
- 2024-12-19 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
CAPEC
References (9)
URL | Tag | Source |
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https://git.kernel.org/stable/c/a25691c1f9674090fb66586cf4c5d60d3efdf339 | Vuln. Introduced |
URL | Date | SRC |
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URL | Date | SRC |
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Affected Vendors, Products, and Versions
Vendor | Product | Version | Other | Status | ||||||
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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
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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
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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
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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
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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
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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
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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
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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
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