What is CVE-2024-26801?

CVE-2024-26801 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a Use After Free flaw (CWE-416). CVE-2024-26801 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-26801?

CVE-2024-26801 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2024-26801?

No patch is currently available for CVE-2024-26801. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2024-26801 actively exploited?

CVE-2024-26801 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Use After Free (CWE-416)?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/416.html

CVE-2024-26801

Medium

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Avoid potential use-after-free in hci_error_reset While handling the HCI_EV_HARDWARE_ERROR event, if the underlying BT controller is not responding, the GPIO reset mechanism would free the hci_dev and lead to a use-after-free in hci_error_reset. Here's the call trace observed on a ChromeOS device with Intel AX201: queue_work_on+0x3e/0x6c __hci_cmd_sync_sk+0x2ee/0x4c0 [bluetooth <HASH:3b4a6>] ? init_wait_entry+0x31/0x31 __hci_cmd_sync+0x16/0x20 [bluetooth <HASH:3b4a 6>] hci_error_reset+0x4f/0xa4 [bluetooth <HASH:3b4a 6>] process_one_work+0x1d8/0x33f worker_thread+0x21b/0x373 kthread+0x13a/0x152 ? pr_cont_work+0x54/0x54 ? kthread_blkcg+0x31/0x31 ret_from_fork+0x1f/0x30 This patch holds the reference count on the hci_dev while processing a HCI_EV_HARDWARE_ERROR event to avoid potential crash.

Package Linux Kernel

Published 2024-04-04

Last modified 2024-12-20

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness type

CWE-416

CVE-2024-26801 is a Use After Free vulnerability

What is Use After Free?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2024-26801 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://git.kernel.org/stable/c/2449007d3f73b2842c9734f45f0aadb522daf592
Patch
Kernel patch commit
https://git.kernel.org/stable/c/2ab9a19d896f5a0dd386e1f001c5309bc35f433b
Patch
Kernel patch commit
https://git.kernel.org/stable/c/45085686b9559bfbe3a4f41d3d695a520668f5e1
Patch

10 patch commits total View all on NVD

Details

CVE ID CVE-2024-26801

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-04-04

Modified 2024-12-20

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2024-26801?

CVE-2024-26801 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as an Use After Free flaw (CWE-416) . CVE-2024-26801 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-26801?

CVE-2024-26801 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2024-26801?

No patch is currently available for CVE-2024-26801. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2024-26801 actively exploited?

No — CVE-2024-26801 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Use After Free (CWE-416)?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. View CWE-416 on MITRE CWE →