CVE-2024-35832

5.5 · MEDIUM

Published May 17, 2024 linux CWE-763 EPSS 0.18% (8th pctl) CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Overview

CVE-2024-35832 is a medium-severity vulnerability affecting linux linux_kernel. It was published on May 17, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical Description

In the Linux kernel, the following vulnerability has been resolved:

bcachefs: kvfree bch_fs::snapshots in bch2_fs_snapshots_exit

bch_fs::snapshots is allocated by kvzalloc in __snapshot_t_mut.

It should be freed by kvfree not kfree.

Or umount will triger:

[ 406.829178 ] BUG: unable to handle page fault for address: ffffe7b487148008

[ 406.830676 ] #PF: supervisor read access in kernel mode

[ 406.831643 ] #PF: error_code(0x0000) - not-present page

[ 406.832487 ] PGD 0 P4D 0

[ 406.832898 ] Oops: 0000 [#1] PREEMPT SMP PTI

[ 406.833512 ] CPU: 2 PID: 1754 Comm: umount Kdump: loaded Tainted: G OE 6.7.0-rc7-custom+ #90

[ 406.834746 ] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Arch Linux 1.16.3-1-1 04/01/2014

[ 406.835796 ] RIP: 0010:kfree+0x62/0x140

[ 406.836197 ] Code: 80 48 01 d8 0f 82 e9 00 00 00 48 c7 c2 00 00 00 80 48 2b 15 78 9f 1f 01 48 01 d0 48 c1 e8 0c 48 c1 e0 06 48 03 05 56 9f 1f 01 <48> 8b 50 08 48 89 c7 f6 c2 01 0f 85 b0 00 00 00 66 90 4

Remediation

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected Products

Vendor	Product	Versions	Status
linux	linux_kernel	>= 6.7, < 6.7.5	Affected

References

Ref git.kernel.org/stable/c/369acf97d6fd5da620d053d0f1878ffe32eff555 Ref git.kernel.org/stable/c/56590678791119b9a655202e49898edfb9307271 Ref git.kernel.org/stable/c/369acf97d6fd5da620d053d0f1878ffe32eff555 Ref git.kernel.org/stable/c/56590678791119b9a655202e49898edfb9307271

Frequently Asked Questions

What is CVE-2024-35832?

CVE-2024-35832 is a medium-severity vulnerability affecting linux linux_kernel. It was published on May 17, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-35832?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-35832?

How can CyberStrike help with CVE-2024-35832?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-35832 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.

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