5.5

CVE-2021-47499

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

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 4.2 < 4.4.295
Linux ≫ Linux Kernel Version >= 4.5 < 4.9.293
Linux ≫ Linux Kernel Version >= 4.10 < 4.14.258
Linux ≫ Linux Kernel Version >= 4.15 < 4.19.221
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.165
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.85
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.8
Linux ≫ Linux Kernel Version5.16 Updaterc1
Linux ≫ Linux Kernel Version5.16 Updaterc2
Linux ≫ Linux Kernel Version5.16 Updaterc3
Linux ≫ Linux Kernel Version5.16 Updaterc4
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.24% 0.148
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-401 Missing Release of Memory after Effective Lifetime

The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.

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