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CVE-2024-26644

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: btrfs: don't abort filesystem when attempting to snapshot deleted subvolume If the source file descriptor to the snapshot ioctl…

Published Mar 26, 2024CWE-908EPSS 0.23%

Overview

CVE-2024-26644 is a medium-severity vulnerability. It was published on March 26, 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:

btrfs: don't abort filesystem when attempting to snapshot deleted subvolume

If the source file descriptor to the snapshot ioctl refers to a deleted

subvolume, we get the following abort:

BTRFS: Transaction aborted (error -2)

WARNING: CPU: 0 PID: 833 at fs/btrfs/transaction.c:1875 create_pending_snapshot+0x1040/0x1190 [btrfs]

Modules linked in: pata_acpi btrfs ata_piix libata scsi_mod virtio_net blake2b_generic xor net_failover virtio_rng failover scsi_common rng_core raid6_pq libcrc32c

CPU: 0 PID: 833 Comm: t_snapshot_dele Not tainted 6.7.0-rc6 #2

Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-1.fc39 04/01/2014

RIP: 0010:create_pending_snapshot+0x1040/0x1190 [btrfs]

RSP: 0018:ffffa09c01337af8 EFLAGS: 00010282

RAX: 0000000000000000 RBX: ffff9982053e7c78 RCX: 0000000000000027

RDX: ffff99827dc20848 RSI: 0000000000000001 RDI: ffff99827dc20840

RBP: ffffa09c01337c00 R08: 00000000000

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. 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.

References

Refgit.kernel.org/stable/c/0877497dc97834728e1b528ddf1e1c484292c29cRefgit.kernel.org/stable/c/2bdf872bcfe629a6202ffd6641615a8ed00e8464Refgit.kernel.org/stable/c/6e6bca99e8d88d989a7cde4c064abea552d5219bRefgit.kernel.org/stable/c/7081929ab2572920e94d70be3d332e5c9f97095aRefgit.kernel.org/stable/c/c06941564027bdbc01d2df7f41e333c11cb0482dRefgit.kernel.org/stable/c/d8680b722f0ff6d7a01ddacc1844e0d52354d6ffRefgit.kernel.org/stable/c/ec794a7528199e1be6d47bec03f4755aa75df256Refgit.kernel.org/stable/c/0877497dc97834728e1b528ddf1e1c484292c29cRefgit.kernel.org/stable/c/2bdf872bcfe629a6202ffd6641615a8ed00e8464Refgit.kernel.org/stable/c/6e6bca99e8d88d989a7cde4c064abea552d5219b

How CyberStrike helps

Frequently asked questions

What is CVE-2024-26644?

CVE-2024-26644 is a medium-severity vulnerability. It was published on March 26, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-26644?

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-2024-26644?

Check the references section for vendor advisories, patches, and mitigation guidance. 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.

How can CyberStrike help with CVE-2024-26644?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-26644 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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