Linux Kernel up to 6.7.6 aio kiocb_set_cancel_fn privilege escalation

CVSS Meta Temp Score
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CTI Interest Score
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3.9$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 6.7.6. It has been declared as problematic. Affected is the function kiocb_set_cancel_fn of the component aio. Executing a manipulation can lead to an unknown weakness. This vulnerability appears as CVE-2024-26764. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 6.7.6 and classified as problematic. This vulnerability affects the function kiocb_set_cancel_fn of the component aio. The impact remains unknown. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: fs/aio: Restrict kiocb_set_cancel_fn() to I/O submitted via libaio If kiocb_set_cancel_fn() is called for I/O submitted via io_uring, the following kernel warning appears: WARNING: CPU: 3 PID: 368 at fs/aio.c:598 kiocb_set_cancel_fn+0x9c/0xa8 Call trace: kiocb_set_cancel_fn+0x9c/0xa8 ffs_epfile_read_iter+0x144/0x1d0 io_read+0x19c/0x498 io_issue_sqe+0x118/0x27c io_submit_sqes+0x25c/0x5fc __arm64_sys_io_uring_enter+0x104/0xab0 invoke_syscall+0x58/0x11c el0_svc_common+0xb4/0xf4 do_el0_svc+0x2c/0xb0 el0_svc+0x2c/0xa4 el0t_64_sync_handler+0x68/0xb4 el0t_64_sync+0x1a4/0x1a8 Fix this by setting the IOCB_AIO_RW flag for read and write I/O that is submitted by libaio.

The advisory is available at git.kernel.org. This vulnerability was named CVE-2024-26764 since 02/19/2024. The exploitation appears to be difficult. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 239865 (TencentOS Server 3: kernel (TSSA-2024:1035)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.19.308, 5.4.270, 5.10.211, 5.15.150, 6.1.80, 6.6.19, 6.7.7 or 6.8 eliminates this vulnerability. Applying the patch 337b543e274f/b4eea7a05ee0/ea1cd64d59f2/d7b6fa97ec89/18f614369def/e7e23fc5d5fe/1dc7d74fe456/b820de741ae4 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 databases at Tenable (239865) and CERT Bund (WID-SEC-2024-0773). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • IBM InfoSphere Guardium
  • Oracle Linux
  • NetApp FAS
  • EMC Avamar
  • Oracle VM
  • NetApp AFF
  • Dell NetWorker
  • IBM Security Guardium
  • RESF Rocky Linux
  • Open Source Linux Kernel
  • SolarWinds Security Event Manager
  • Broadcom Brocade SANnav
  • IBM Business Automation Workflow
  • IBM Spectrum Protect Plus
  • IBM QRadar SIEM
  • Juniper Junos Space
  • IBM DB2
  • IBM Storage Scale System

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.9
VulDB Meta Temp Score: 3.9

VulDB Base Score: 4.6
VulDB Temp Score: 4.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 3.3
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Privilege escalation
CWE: Unknown
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 239865
Nessus Name: TencentOS Server 3: kernel (TSSA-2024:1035)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 4.19.308/5.4.270/5.10.211/5.15.150/6.1.80/6.6.19/6.7.7/6.8
Patch: 337b543e274f/b4eea7a05ee0/ea1cd64d59f2/d7b6fa97ec89/18f614369def/e7e23fc5d5fe/1dc7d74fe456/b820de741ae4

Timelineinfo

02/19/2024 🔍
04/03/2024 +43 days 🔍
04/03/2024 +0 days 🔍
08/03/2025 +487 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2024-26764 (🔍)
GCVE (CVE): GCVE-0-2024-26764
GCVE (VulDB): GCVE-100-259258
CERT Bund: WID-SEC-2024-0773 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 04/03/2024 19:29
Updated: 08/03/2025 23:06
Changes: 04/03/2024 19:29 (56), 06/27/2024 19:19 (1), 03/18/2025 20:26 (11), 06/19/2025 11:02 (2), 08/03/2025 23:06 (7)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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