# CVE-2021-47499: linux: In the Linux kernel, the following vulnerability has been resolved:  iio: accel: kxcjk-1013: Fix possible memory leak...

CVE-2021-47499 is fixed in linux on 1 platform, first by DEBIAN-CVE-2021-47499, released May 24, 2024. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2021-47499
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0024
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: May 24, 2024

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 5.15.15-1 | [DEBIAN-CVE-2021-47499](https://patchblox.com/security/data/fix/linux/debian-cve-2021-47499.md) | May 24, 2024 |
| Linux | linux Debian 13.5 (trixie) | 5.15.15-1 | [DEBIAN-CVE-2021-47499](https://patchblox.com/security/data/fix/linux/debian-cve-2021-47499.md) | May 24, 2024 |
| Linux | linux Debian 14 | 5.15.15-1 | [DEBIAN-CVE-2021-47499](https://patchblox.com/security/data/fix/linux/debian-cve-2021-47499.md) | May 24, 2024 |

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