Linux Kernel up to 6.2.8 cond_resched denial of service

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 6.2.8 and classified as critical. Affected by this issue is the function cond_resched. Such manipulation leads to denial of service. This vulnerability is referenced as CVE-2023-53051. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.2.8 and classified as critical. Affected by this issue is the function cond_resched. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: dm crypt: add cond_resched() to dmcrypt_write() The loop in dmcrypt_write may be running for unbounded amount of time, thus we need cond_resched() in it. This commit fixes the following warning: [ 3391.153255][ C12] watchdog: BUG: soft lockup - CPU#12 stuck for 23s! [dmcrypt_write/2:2897] ... [ 3391.387210][ C12] Call trace: [ 3391.390338][ C12] blk_attempt_bio_merge.part.6+0x38/0x158 [ 3391.395970][ C12] blk_attempt_plug_merge+0xc0/0x1b0 [ 3391.401085][ C12] blk_mq_submit_bio+0x398/0x550 [ 3391.405856][ C12] submit_bio_noacct+0x308/0x380 [ 3391.410630][ C12] dmcrypt_write+0x1e4/0x208 [dm_crypt] [ 3391.416005][ C12] kthread+0x130/0x138 [ 3391.419911][ C12] ret_from_fork+0x10/0x18

The advisory is shared for download at git.kernel.org. This vulnerability is handled as CVE-2023-53051 since 04/16/2025. The exploitation is known to be difficult. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 241778 (Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2025-1054)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.14.312, 4.19.280, 5.4.240, 5.10.177, 5.15.105, 6.1.22 or 6.2.9 eliminates this vulnerability. Applying the patch e87cd83f70504f1cd2e428966f353c007d6d2d7f/7b9f8efb5fc888dd938d2964e705b8e00f1dc0f6/885c28ceae7dab2b18c2cc0eb95f1f82b1f629d1/66ff37993dd7e9954b6446237fe2453b380ce40d/eb485b7404a281d974bd445ddc5b0b8d5958f371/f0eb61b493dbbc32529fbd0d2e945b71b0e47306/2c743db1193bf0e76c73d71ede08bd9b96e6c31d/fb294b1c0ba982144ca467a75e7d01ff26304e2b is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at Tenable (241778). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.1
VulDB Meta Temp Score: 5.0

VulDB Base Score: 4.8
VulDB Temp Score: 4.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 241778
Nessus Name: Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2025-1054)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 4.14.312/4.19.280/5.4.240/5.10.177/5.15.105/6.1.22/6.2.9
Patch: e87cd83f70504f1cd2e428966f353c007d6d2d7f/7b9f8efb5fc888dd938d2964e705b8e00f1dc0f6/885c28ceae7dab2b18c2cc0eb95f1f82b1f629d1/66ff37993dd7e9954b6446237fe2453b380ce40d/eb485b7404a281d974bd445ddc5b0b8d5958f371/f0eb61b493dbbc32529fbd0d2e945b71b0e47306/2c743db1193bf0e76c73d71ede08bd9b96e6c31d/fb294b1c0ba982144ca467a75e7d01ff26304e2b

Timelineinfo

04/16/2025 🔍
05/02/2025 +16 days 🔍
05/02/2025 +0 days 🔍
11/12/2025 +194 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2023-53051 (🔍)
GCVE (CVE): GCVE-0-2023-53051
GCVE (VulDB): GCVE-100-307220

Entryinfo

Created: 05/02/2025 19:49
Updated: 11/12/2025 22:47
Changes: 05/02/2025 19:49 (58), 07/11/2025 10:41 (2), 11/12/2025 22:47 (12)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Want to know what is going to be exploited?

We predict KEV entries!