CVE-2021-47499

MEDIUM
Published May 24, 2024 Modified Jan 6, 2025 CWE-401

Description

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.

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CVSS v3.1 Score

5.5
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-401 CWE-401

Affected Products

Vendor Product
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel

References

Advisories & Patches

https://git.kernel.org/stable/c/14508fe13b1c578b3d2ba574f1d48b351975860c https://git.kernel.org/stable/c/3899700ddacbf7aaafadf44464fff3ff0d4e3307 https://git.kernel.org/stable/c/60a55b9d91ba99eb8cf015bc46dc2de05e168a15 https://git.kernel.org/stable/c/70c9774e180d151abaab358108e3510a8e615215 https://git.kernel.org/stable/c/8c163a14277115ca962103910ab4cce55e862ffb https://git.kernel.org/stable/c/8c1d43f3a3fc7184c42d7398bdf59a2a2903e4fc https://git.kernel.org/stable/c/a3730f74159ad00a28960c0efe2a931fe6fe6b45 https://git.kernel.org/stable/c/ee86d0bad80bdcd11a87e188a596727f41b62320 https://git.kernel.org/stable/c/14508fe13b1c578b3d2ba574f1d48b351975860c https://git.kernel.org/stable/c/3899700ddacbf7aaafadf44464fff3ff0d4e3307 https://git.kernel.org/stable/c/60a55b9d91ba99eb8cf015bc46dc2de05e168a15 https://git.kernel.org/stable/c/70c9774e180d151abaab358108e3510a8e615215 https://git.kernel.org/stable/c/8c163a14277115ca962103910ab4cce55e862ffb https://git.kernel.org/stable/c/8c1d43f3a3fc7184c42d7398bdf59a2a2903e4fc https://git.kernel.org/stable/c/a3730f74159ad00a28960c0efe2a931fe6fe6b45 https://git.kernel.org/stable/c/ee86d0bad80bdcd11a87e188a596727f41b62320

Frequently Asked Questions

What is CVE-2021-47499? +
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. It has a CVSS v3.1 base score of 5.5 (MEDIUM).
How severe is CVE-2021-47499? +
CVE-2021-47499 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.
What products are affected by CVE-2021-47499? +
CVE-2021-47499 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2021-47499? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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