Is CVE-2025-68373 in the CISA KEV catalog?

No. CVE-2025-68373 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the EPSS score for CVE-2025-68373?

CVE-2025-68373 has an EPSS score of 0.15% (5th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-68373?

Upgrade linux on debian unstable to 6.17.13-1 or later. Fixes are available for 61 affected products.

CVE & CISA-KEV Catalog

CVE-2025-68373

UNSCORED

NVD

Description

In the Linux kernel, the following vulnerability has been resolved: md: avoid repeated calls to del_gendisk There is a uaf problem which is found by case 23rdev-lifetime: Oops: general protection fault, probably for non-canonical address 0xdead000000000122 RIP: 0010:bdi_unregister+0x4b/0x170 Call Trace: <TASK> __del_gendisk+0x356/0x3e0 mddev_unlock+0x351/0x360 rdev_attr_store+0x217/0x280 kernfs_fop_write_iter+0x14a/0x210 vfs_write+0x29e/0x550 ksys_write+0x74/0xf0 do_syscall_64+0xbb/0x380 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff5250a177e The sequence is: 1. rdev remove path gets reconfig_mutex 2. rdev remove path release reconfig_mutex in mddev_unlock 3. md stop calls do_md_stop and sets MD_DELETED 4. rdev remove path calls del_gendisk because MD_DELETED is set 5. md stop path release reconfig_mutex and calls del_gendisk again So there is a race condition we should resolve. This patch adds a flag MD_DO_DELETE to avoid the race condition.

How to fix

Remediation Available

linuxDebian

Fixed in:6.17.13-1CVE-2025-68373

linuxUbuntu

Fixed in:6.17.0-19.19USN-8094-1

linux-awsUbuntu

Fixed in:6.17.0-1009.9USN-8094-1

linux-aws-6.17Ubuntu

Fixed in:6.17.0-1009.9~24.04.2USN-8094-1

linux-azureUbuntu

Fixed in:6.17.0-1010.10USN-8094-4

linux-azure-6.17Ubuntu

Fixed in:6.17.0-1010.10~24.04.1USN-8094-4

linux-gcpUbuntu

Fixed in:6.17.0-1009.9USN-8094-1

linux-gcp-6.17Ubuntu

Fixed in:6.17.0-1009.9~24.04.3USN-8094-2

linux-hwe-6.17Ubuntu

Fixed in:6.17.0-19.19~24.04.2USN-8094-1

linux-image-6.17.0-1008-realtimeUbuntu

Fixed in:6.17.0-1008.9~24.04.1USN-8094-3

Fixed in:6.17.0-1008.9USN-8094-2

linux-image-6.17.0-1009-awsUbuntu

Fixed in:6.17.0-1009.9~24.04.2USN-8094-1

Fixed in:6.17.0-1009.9USN-8094-1

linux-image-6.17.0-1009-aws-64kUbuntu

Fixed in:6.17.0-1009.9~24.04.2USN-8094-1

Fixed in:6.17.0-1009.9USN-8094-1

linux-image-6.17.0-1009-gcpUbuntu

Fixed in:6.17.0-1009.9~24.04.3USN-8094-2

Fixed in:6.17.0-1009.9USN-8094-1

linux-image-6.17.0-1009-gcp-64kUbuntu

Fixed in:6.17.0-1009.9~24.04.3USN-8094-2

Fixed in:6.17.0-1009.9USN-8094-1

linux-image-6.17.0-1009-oracleUbuntu

Fixed in:6.17.0-1009.9~24.04.1USN-8094-1

Fixed in:6.17.0-1009.9USN-8094-1

linux-image-6.17.0-1009-oracle-64kUbuntu

Fixed in:6.17.0-1009.9~24.04.1USN-8094-1

Fixed in:6.17.0-1009.9USN-8094-1

linux-image-6.17.0-1010-azureUbuntu

Fixed in:6.17.0-1010.10~24.04.1USN-8094-4

Fixed in:6.17.0-1010.10USN-8094-4

linux-image-6.17.0-1010-raspiUbuntu

Fixed in:6.17.0-1010.10USN-8094-5

linux-image-6.17.0-1017-oemUbuntu

Fixed in:6.17.0-1017.17USN-8152-1

linux-image-6.17.0-19-genericUbuntu

Fixed in:6.17.0-19.19~24.04.2USN-8094-1

Fixed in:6.17.0-19.19USN-8094-1

linux-image-6.17.0-19-generic-64kUbuntu

Fixed in:6.17.0-19.19~24.04.2USN-8094-1

Fixed in:6.17.0-19.19USN-8094-1

linux-image-awsUbuntu

Fixed in:6.17.0-1009.9~24.04.2USN-8094-1

Fixed in:6.17.0-1009.9USN-8094-1

linux-image-aws-6.17Ubuntu

Fixed in:6.17.0-1009.9~24.04.2USN-8094-1

Fixed in:6.17.0-1009.9USN-8094-1

linux-image-aws-64kUbuntu

Fixed in:6.17.0-1009.9~24.04.2USN-8094-1

Fixed in:6.17.0-1009.9USN-8094-1

linux-image-aws-64k-6.17Ubuntu

Fixed in:6.17.0-1009.9~24.04.2USN-8094-1

Fixed in:6.17.0-1009.9USN-8094-1

linux-image-azureUbuntu

Fixed in:6.17.0-1010.10~24.04.1USN-8094-4

Fixed in:6.17.0-1010.10USN-8094-4

linux-image-azure-6.17Ubuntu

Fixed in:6.17.0-1010.10~24.04.1USN-8094-4

Fixed in:6.17.0-1010.10USN-8094-4

linux-image-gcpUbuntu

Fixed in:6.17.0-1009.9~24.04.3USN-8094-2

Fixed in:6.17.0-1009.9USN-8094-1

linux-image-gcp-6.17Ubuntu

Fixed in:6.17.0-1009.9~24.04.3USN-8094-2

Fixed in:6.17.0-1009.9USN-8094-1

linux-image-gcp-64kUbuntu

Fixed in:6.17.0-1009.9~24.04.3USN-8094-2

Fixed in:6.17.0-1009.9USN-8094-1

linux-image-gcp-64k-6.17Ubuntu

Fixed in:6.17.0-1009.9~24.04.3USN-8094-2

Fixed in:6.17.0-1009.9USN-8094-1

linux-image-genericUbuntu

Fixed in:6.17.0-19.19USN-8094-1

linux-image-generic-6.17Ubuntu

Fixed in:6.17.0-19.19~24.04.2USN-8094-1

Fixed in:6.17.0-19.19USN-8094-1

linux-image-generic-64kUbuntu

Fixed in:6.17.0-19.19USN-8094-1

linux-image-generic-64k-6.17Ubuntu

Fixed in:6.17.0-19.19~24.04.2USN-8094-1

Fixed in:6.17.0-19.19USN-8094-1

linux-image-generic-64k-hwe-24.04Ubuntu

Fixed in:6.17.0-19.19~24.04.2USN-8094-1

linux-image-generic-hwe-24.04Ubuntu

Fixed in:6.17.0-19.19~24.04.2USN-8094-1

linux-image-oem-24.04Ubuntu

Fixed in:6.17.0-1017.17USN-8152-1

linux-image-oem-24.04aUbuntu

Fixed in:6.17.0-1017.17USN-8152-1

linux-image-oem-24.04bUbuntu

Fixed in:6.17.0-1017.17USN-8152-1

linux-image-oem-24.04cUbuntu

Fixed in:6.17.0-1017.17USN-8152-1

linux-image-oem-24.04dUbuntu

Fixed in:6.17.0-1017.17USN-8152-1

linux-image-oem-6.17Ubuntu

Fixed in:6.17.0-1017.17USN-8152-1

linux-image-oracleUbuntu

Fixed in:6.17.0-1009.9~24.04.1USN-8094-1

Fixed in:6.17.0-1009.9USN-8094-1

linux-image-oracle-6.17Ubuntu

Fixed in:6.17.0-1009.9~24.04.1USN-8094-1

Fixed in:6.17.0-1009.9USN-8094-1

linux-image-oracle-64kUbuntu

Fixed in:6.17.0-1009.9~24.04.1USN-8094-1

Fixed in:6.17.0-1009.9USN-8094-1

linux-image-oracle-64k-6.17Ubuntu

Fixed in:6.17.0-1009.9~24.04.1USN-8094-1

Fixed in:6.17.0-1009.9USN-8094-1

linux-image-raspiUbuntu

Fixed in:6.17.0-1010.10USN-8094-5

linux-image-raspi-6.17Ubuntu

Fixed in:6.17.0-1010.10USN-8094-5

linux-image-realtimeUbuntu

Fixed in:6.17.0-1008.9USN-8094-2

linux-image-realtime-6.17Ubuntu

Fixed in:6.17.0-1008.9~24.04.1USN-8094-3

Fixed in:6.17.0-1008.9USN-8094-2

linux-image-realtime-hwe-24.04Ubuntu

Fixed in:6.17.0-1008.9~24.04.1USN-8094-3

Fixed in:6.17.0-1008.9USN-8094-2

linux-image-virtualUbuntu

Fixed in:6.17.0-19.19USN-8094-1

linux-image-virtual-6.17Ubuntu

Fixed in:6.17.0-19.19~24.04.2USN-8094-1

Fixed in:6.17.0-19.19USN-8094-1

linux-image-virtual-hwe-24.04Ubuntu

Fixed in:6.17.0-19.19~24.04.2USN-8094-1

linux-oem-6.17Ubuntu

Fixed in:6.17.0-1017.17USN-8152-1

linux-oracleUbuntu

Fixed in:6.17.0-1009.9USN-8094-1

linux-oracle-6.17Ubuntu

Fixed in:6.17.0-1009.9~24.04.1USN-8094-1

linux-raspiUbuntu

Fixed in:6.17.0-1010.10USN-8094-5

linux-realtimeUbuntu

Fixed in:6.17.0-1008.9USN-8094-2

linux-realtime-6.17Ubuntu

Fixed in:6.17.0-1008.9~24.04.1USN-8094-3

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3.1 Vector

No CVSS vector data available.

Exploit Intelligence

0.15%probability of exploitation in 30 days

5thpercentile

Low risk: more likely to be exploited than 5% of all known CVEs.

References

Other references3

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-12-29.