CVE-2022-49315
RTL8192e Linux Kernel Deadlock Vulnerability
Description
In the Linux kernel, the following vulnerability has been resolved: drivers: staging: rtl8192e: Fix deadlock in rtllib_beacons_stop() There is a deadlock in rtllib_beacons_stop(), which is shown below: (Thread 1) | (Thread 2) | rtllib_send_beacon() rtllib_beacons_stop() | mod_timer() spin_lock_irqsave() //(1) | (wait a time) ... | rtllib_send_beacon_cb() del_timer_sync() | spin_lock_irqsave() //(2) (wait timer to stop) | ... We hold ieee->beacon_lock in position (1) of thread 1 and use del_timer_sync() to wait timer to stop, but timer handler also need ieee->beacon_lock in position (2) of thread 2. As a result, rtllib_beacons_stop() will block forever. This patch extracts del_timer_sync() from the protection of spin_lock_irqsave(), which could let timer handler to obtain the needed lock.
INFO
Published Date :
Feb. 26, 2025, 7:01 a.m.
Last Modified :
March 13, 2025, 10 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
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CVE-2022-49315.
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).
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The following list is the news that have been mention
CVE-2022-49315 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-49315 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.
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Initial Analysis by [email protected]
Mar. 13, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-667 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 from (excluding) 5.4.198 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.10 from (excluding) 4.14.283 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 from (excluding) 4.19.247 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.18 from (excluding) 5.18.4 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 from (excluding) 5.17.15 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 from (excluding) 5.15.47 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (excluding) 4.9.318 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 from (excluding) 5.10.122 Added Reference Type kernel.org: https://git.kernel.org/stable/c/08bacf871c019163ccd1389d0bc957a43324967a Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/0f69d7d5e918aa43423d86bd17ddb11b1b5e8ada Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/381045dc64d23a2229c47c5524c06bfc33d34446 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/4681129fda9e8555392eaaadb239ec6a6e2b3e12 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/46c861009bf437a18417df24cea0d181741b7d72 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/64b05fa212c7e4d057676e8b7e7120c6eb2f615b Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/9b6bdbd9337de3917945847bde262a34a87a6303 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/fef451f0fbbe85dbd2962b18379d02e2965610db Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/ffd4c4d5293e4985092ea45ba21cad9326e2e434 Types: Patch -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Feb. 26, 2025
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: drivers: staging: rtl8192e: Fix deadlock in rtllib_beacons_stop() There is a deadlock in rtllib_beacons_stop(), which is shown below: (Thread 1) | (Thread 2) | rtllib_send_beacon() rtllib_beacons_stop() | mod_timer() spin_lock_irqsave() //(1) | (wait a time) ... | rtllib_send_beacon_cb() del_timer_sync() | spin_lock_irqsave() //(2) (wait timer to stop) | ... We hold ieee->beacon_lock in position (1) of thread 1 and use del_timer_sync() to wait timer to stop, but timer handler also need ieee->beacon_lock in position (2) of thread 2. As a result, rtllib_beacons_stop() will block forever. This patch extracts del_timer_sync() from the protection of spin_lock_irqsave(), which could let timer handler to obtain the needed lock. Added Reference https://git.kernel.org/stable/c/08bacf871c019163ccd1389d0bc957a43324967a Added Reference https://git.kernel.org/stable/c/0f69d7d5e918aa43423d86bd17ddb11b1b5e8ada Added Reference https://git.kernel.org/stable/c/381045dc64d23a2229c47c5524c06bfc33d34446 Added Reference https://git.kernel.org/stable/c/4681129fda9e8555392eaaadb239ec6a6e2b3e12 Added Reference https://git.kernel.org/stable/c/46c861009bf437a18417df24cea0d181741b7d72 Added Reference https://git.kernel.org/stable/c/64b05fa212c7e4d057676e8b7e7120c6eb2f615b Added Reference https://git.kernel.org/stable/c/9b6bdbd9337de3917945847bde262a34a87a6303 Added Reference https://git.kernel.org/stable/c/fef451f0fbbe85dbd2962b18379d02e2965610db Added Reference https://git.kernel.org/stable/c/ffd4c4d5293e4985092ea45ba21cad9326e2e434
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-49315 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-2022-49315
weaknesses.