0.0
NA
CVE-2022-48705
Qualcomm MT7921e WiFi: Crash Due to Improper Chip Reset
Description

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7921e: fix crash in chip reset fail In case of drv own fail in reset, we may need to run mac_reset several times. The sequence would trigger system crash as the log below. Because we do not re-enable/schedule "tx_napi" before disable it again, the process would keep waiting for state change in napi_diable(). To avoid the problem and keep status synchronize for each run, goto final resource handling if drv own failed. [ 5857.353423] mt7921e 0000:3b:00.0: driver own failed [ 5858.433427] mt7921e 0000:3b:00.0: Timeout for driver own [ 5859.633430] mt7921e 0000:3b:00.0: driver own failed [ 5859.633444] ------------[ cut here ]------------ [ 5859.633446] WARNING: CPU: 6 at kernel/kthread.c:659 kthread_park+0x11d [ 5859.633717] Workqueue: mt76 mt7921_mac_reset_work [mt7921_common] [ 5859.633728] RIP: 0010:kthread_park+0x11d/0x150 [ 5859.633736] RSP: 0018:ffff8881b676fc68 EFLAGS: 00010202 ...... [ 5859.633766] Call Trace: [ 5859.633768] <TASK> [ 5859.633771] mt7921e_mac_reset+0x176/0x6f0 [mt7921e] [ 5859.633778] mt7921_mac_reset_work+0x184/0x3a0 [mt7921_common] [ 5859.633785] ? mt7921_mac_set_timing+0x520/0x520 [mt7921_common] [ 5859.633794] ? __kasan_check_read+0x11/0x20 [ 5859.633802] process_one_work+0x7ee/0x1320 [ 5859.633810] worker_thread+0x53c/0x1240 [ 5859.633818] kthread+0x2b8/0x370 [ 5859.633824] ? process_one_work+0x1320/0x1320 [ 5859.633828] ? kthread_complete_and_exit+0x30/0x30 [ 5859.633834] ret_from_fork+0x1f/0x30 [ 5859.633842] </TASK>

INFO

Published Date :

May 3, 2024, 6:15 p.m.

Last Modified :

May 6, 2024, 12:44 p.m.

Source :

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

Remotely Exploitable :

No

Impact Score :

Exploitability Score :

Affected Products

The following products are affected by CVE-2022-48705 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-2022-48705.

URL Resource
https://git.kernel.org/stable/c/f7f3001723e337568017e8617974f29bc8b2f595
https://git.kernel.org/stable/c/fa3fbe64037839f448dc569212bafc5a495d8219

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-2022-48705 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2022-48705 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

    May. 03, 2024

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7921e: fix crash in chip reset fail In case of drv own fail in reset, we may need to run mac_reset several times. The sequence would trigger system crash as the log below. Because we do not re-enable/schedule "tx_napi" before disable it again, the process would keep waiting for state change in napi_diable(). To avoid the problem and keep status synchronize for each run, goto final resource handling if drv own failed. [ 5857.353423] mt7921e 0000:3b:00.0: driver own failed [ 5858.433427] mt7921e 0000:3b:00.0: Timeout for driver own [ 5859.633430] mt7921e 0000:3b:00.0: driver own failed [ 5859.633444] ------------[ cut here ]------------ [ 5859.633446] WARNING: CPU: 6 at kernel/kthread.c:659 kthread_park+0x11d [ 5859.633717] Workqueue: mt76 mt7921_mac_reset_work [mt7921_common] [ 5859.633728] RIP: 0010:kthread_park+0x11d/0x150 [ 5859.633736] RSP: 0018:ffff8881b676fc68 EFLAGS: 00010202 ...... [ 5859.633766] Call Trace: [ 5859.633768] <TASK> [ 5859.633771] mt7921e_mac_reset+0x176/0x6f0 [mt7921e] [ 5859.633778] mt7921_mac_reset_work+0x184/0x3a0 [mt7921_common] [ 5859.633785] ? mt7921_mac_set_timing+0x520/0x520 [mt7921_common] [ 5859.633794] ? __kasan_check_read+0x11/0x20 [ 5859.633802] process_one_work+0x7ee/0x1320 [ 5859.633810] worker_thread+0x53c/0x1240 [ 5859.633818] kthread+0x2b8/0x370 [ 5859.633824] ? process_one_work+0x1320/0x1320 [ 5859.633828] ? kthread_complete_and_exit+0x30/0x30 [ 5859.633834] ret_from_fork+0x1f/0x30 [ 5859.633842] </TASK>
    Added Reference kernel.org https://git.kernel.org/stable/c/f7f3001723e337568017e8617974f29bc8b2f595 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/fa3fbe64037839f448dc569212bafc5a495d8219 [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-2022-48705 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-2022-48705 weaknesses.

NONE - Vulnerability Scoring System
: