0.0
NA
CVE-2021-47056
Intel QAT User Access Mutex Lock Violation
Description

In the Linux kernel, the following vulnerability has been resolved: crypto: qat - ADF_STATUS_PF_RUNNING should be set after adf_dev_init ADF_STATUS_PF_RUNNING is (only) used and checked by adf_vf2pf_shutdown() before calling adf_iov_putmsg()->mutex_lock(vf2pf_lock), however the vf2pf_lock is initialized in adf_dev_init(), which can fail and when it fail, the vf2pf_lock is either not initialized or destroyed, a subsequent use of vf2pf_lock will cause issue. To fix this issue, only set this flag if adf_dev_init() returns 0. [ 7.178404] BUG: KASAN: user-memory-access in __mutex_lock.isra.0+0x1ac/0x7c0 [ 7.180345] Call Trace: [ 7.182576] mutex_lock+0xc9/0xd0 [ 7.183257] adf_iov_putmsg+0x118/0x1a0 [intel_qat] [ 7.183541] adf_vf2pf_shutdown+0x4d/0x7b [intel_qat] [ 7.183834] adf_dev_shutdown+0x172/0x2b0 [intel_qat] [ 7.184127] adf_probe+0x5e9/0x600 [qat_dh895xccvf]

INFO

Published Date :

Feb. 29, 2024, 11:15 p.m.

Last Modified :

March 1, 2024, 2:04 p.m.

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67

Remotely Exploitable :

No

Impact Score :

Exploitability Score :

Affected Products

The following products are affected by CVE-2021-47056 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-47056.

URL Resource
https://git.kernel.org/stable/c/05ec8192ee4bfdf2a8894a68350dac9f1a155fa6
https://git.kernel.org/stable/c/09d16cee6285d37cc76311c29add6d97a7e4acda
https://git.kernel.org/stable/c/1ea500ce6f7c9106e4a561d28e69215f3d451818
https://git.kernel.org/stable/c/1f50392650ae794a1aea41c213c6a3e1c824413c
https://git.kernel.org/stable/c/20fd40fc6f2c2b41dc6f637f88d494b14e9c21f1
https://git.kernel.org/stable/c/446045cf682af12d9294765f6c46084b374b5654
https://git.kernel.org/stable/c/8609f5cfdc872fc3a462efa6a3eca5cb1e2f6446
https://git.kernel.org/stable/c/f4c4e07140687f42bfa40e091bb4a55d7960ce4d

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-47056 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-47056 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    May. 28, 2024

    Action Type Old Value New Value
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Feb. 29, 2024

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: crypto: qat - ADF_STATUS_PF_RUNNING should be set after adf_dev_init ADF_STATUS_PF_RUNNING is (only) used and checked by adf_vf2pf_shutdown() before calling adf_iov_putmsg()->mutex_lock(vf2pf_lock), however the vf2pf_lock is initialized in adf_dev_init(), which can fail and when it fail, the vf2pf_lock is either not initialized or destroyed, a subsequent use of vf2pf_lock will cause issue. To fix this issue, only set this flag if adf_dev_init() returns 0. [ 7.178404] BUG: KASAN: user-memory-access in __mutex_lock.isra.0+0x1ac/0x7c0 [ 7.180345] Call Trace: [ 7.182576] mutex_lock+0xc9/0xd0 [ 7.183257] adf_iov_putmsg+0x118/0x1a0 [intel_qat] [ 7.183541] adf_vf2pf_shutdown+0x4d/0x7b [intel_qat] [ 7.183834] adf_dev_shutdown+0x172/0x2b0 [intel_qat] [ 7.184127] adf_probe+0x5e9/0x600 [qat_dh895xccvf]
    Added Reference Linux https://git.kernel.org/stable/c/f4c4e07140687f42bfa40e091bb4a55d7960ce4d [No types assigned]
    Added Reference Linux https://git.kernel.org/stable/c/446045cf682af12d9294765f6c46084b374b5654 [No types assigned]
    Added Reference Linux https://git.kernel.org/stable/c/09d16cee6285d37cc76311c29add6d97a7e4acda [No types assigned]
    Added Reference Linux https://git.kernel.org/stable/c/05ec8192ee4bfdf2a8894a68350dac9f1a155fa6 [No types assigned]
    Added Reference Linux https://git.kernel.org/stable/c/1f50392650ae794a1aea41c213c6a3e1c824413c [No types assigned]
    Added Reference Linux https://git.kernel.org/stable/c/20fd40fc6f2c2b41dc6f637f88d494b14e9c21f1 [No types assigned]
    Added Reference Linux https://git.kernel.org/stable/c/1ea500ce6f7c9106e4a561d28e69215f3d451818 [No types assigned]
    Added Reference Linux https://git.kernel.org/stable/c/8609f5cfdc872fc3a462efa6a3eca5cb1e2f6446 [No types assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-47056 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-47056 weaknesses.

NONE - Vulnerability Scoring System
: