7.8

CVE-2022-50411

ACPICA: Fix error code path in acpi_ds_call_control_method()

In the Linux kernel, the following vulnerability has been resolved:

ACPICA: Fix error code path in acpi_ds_call_control_method()

A use-after-free in acpi_ps_parse_aml() after a failing invocaion of
acpi_ds_call_control_method() is reported by KASAN [1] and code
inspection reveals that next_walk_state pushed to the thread by
acpi_ds_create_walk_state() is freed on errors, but it is not popped
from the thread beforehand.  Thus acpi_ds_get_current_walk_state()
called by acpi_ps_parse_aml() subsequently returns it as the new
walk state which is incorrect.

To address this, make acpi_ds_call_control_method() call
acpi_ds_pop_walk_state() to pop next_walk_state from the thread before
returning an error.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version < 4.9.337
Linux ≫ Linux Kernel Version >= 4.10 < 4.14.303
Linux ≫ Linux Kernel Version >= 4.15 < 4.19.270
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.229
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.163
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.86
Linux ≫ Linux Kernel Version >= 5.16 < 6.0.16
Linux ≫ Linux Kernel Version >= 6.1 < 6.1.2
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.15% 0.047
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
134c704f-9b21-4f2e-91b3-4a467353bcc0 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

https://git.kernel.org/stable/c/0462fec709d51762ba486245bc344f44cc6cfa97
Patch
https://git.kernel.org/stable/c/2deb42c4f9776e59bee247c14af9c5e8c05ca9a6
Patch
https://git.kernel.org/stable/c/38e251d356a01b61a86cb35213cafd7e8fe7090c
Patch
https://git.kernel.org/stable/c/404ec60438add1afadaffaed34bb5fe4ddcadd40
Patch
https://git.kernel.org/stable/c/5777432ebaaf797e24f059979b42df3139967163
Patch
https://git.kernel.org/stable/c/799881db3e03b5e98fe6a900d9d7de8c7d61e7ee
Patch
https://git.kernel.org/stable/c/9ef353c92f9d04c88de3af1a46859c1fb76db0f8
Patch
https://git.kernel.org/stable/c/b0b83d3f3ffa96e8395c56b83d6197e184902a34
Patch
https://git.kernel.org/stable/c/f520d181477ec29a496c0b3bbfbdb7e2606c2713
Patch