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ubuntucveUbuntu.comUB:CVE-2021-47499
HistoryMay 24, 2024 - 12:00 a.m.

CVE-2021-47499

2024-05-2400:00:00
ubuntu.com
ubuntu.com
7
linux kernel
iio
accel
kxcjk-1013
memory leak
fix
acpi_smo8500
probe
remove

AI Score

6.6

Confidence

High

EPSS

0

Percentile

13.0%

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.

AI Score

6.6

Confidence

High

EPSS

0

Percentile

13.0%