CVE & CISA-KEV Catalog

CVE-2024-35793

MEDIUM
5.5
CVSS v3
NVD

Description

In the Linux kernel, the following vulnerability has been resolved: debugfs: fix wait/cancellation handling during remove Ben Greear further reports deadlocks during concurrent debugfs remove while files are being accessed, even though the code in question now uses debugfs cancellations. Turns out that despite all the review on the locking, we missed completely that the logic is wrong: if the refcount hits zero we can finish (and need not wait for the completion), but if it doesn't we have to trigger all the cancellations. As written, we can _never_ get into the loop triggering the cancellations. Fix this, and explain it better while at it.

How to fix

Remediation Available
linuxDebian
Fixed in:6.7.12-1CVE-2024-35793
Fixed in:6.7.12-1CVE-2024-35793
linuxUbuntu
Fixed in:6.8.0-35.35USN-6816-1
linux-awsUbuntu
Fixed in:6.8.0-1009.9USN-6817-1
linux-azureUbuntu
Fixed in:6.8.0-1008.8USN-6817-3
linux-gcpUbuntu
Fixed in:6.8.0-1008.9USN-6817-1
linux-gkeUbuntu
Fixed in:6.8.0-1004.7USN-6817-3
linux-ibmUbuntu
Fixed in:6.8.0-1006.6USN-6816-1
linux-image-6.8.0-1004-gkeUbuntu
Fixed in:6.8.0-1004.7USN-6817-3
linux-image-6.8.0-1005-raspiUbuntu
Fixed in:6.8.0-1005.5USN-6816-1
linux-image-6.8.0-1006-ibmUbuntu
Fixed in:6.8.0-1006.6USN-6816-1
linux-image-6.8.0-1006-oemUbuntu
Fixed in:6.8.0-1006.6USN-6817-2
linux-image-6.8.0-1006-oracleUbuntu
Fixed in:6.8.0-1006.6USN-6878-1
linux-image-6.8.0-1006-oracle-64kUbuntu
Fixed in:6.8.0-1006.6USN-6878-1
linux-image-6.8.0-1008-azureUbuntu
Fixed in:6.8.0-1008.8USN-6817-3
linux-image-6.8.0-1008-azure-fdeUbuntu
Fixed in:6.8.0-1008.8USN-6817-3
linux-image-6.8.0-1008-gcpUbuntu
Fixed in:6.8.0-1008.9USN-6817-1
linux-image-6.8.0-1009-awsUbuntu
Fixed in:6.8.0-1009.9USN-6817-1
linux-image-6.8.0-35-genericUbuntu
Fixed in:6.8.0-35.35+1USN-6816-1
linux-image-6.8.0-35-generic-64kUbuntu
Fixed in:6.8.0-35.35+1USN-6816-1
linux-image-6.8.0-35-lowlatencyUbuntu
Fixed in:6.8.0-35.35.1USN-6816-1
linux-image-6.8.0-35-lowlatency-64kUbuntu
Fixed in:6.8.0-35.35.1USN-6816-1
linux-image-awsUbuntu
Fixed in:6.8.0-1009.9USN-6817-1
linux-image-azureUbuntu
Fixed in:6.8.0-1008.8USN-6817-3
linux-image-azure-fdeUbuntu
Fixed in:6.8.0-1008.8USN-6817-3
linux-image-gcpUbuntu
Fixed in:6.8.0-1008.9USN-6817-1
linux-image-genericUbuntu
Fixed in:6.8.0-35.35USN-6816-1
linux-image-generic-64kUbuntu
Fixed in:6.8.0-35.35USN-6816-1
linux-image-generic-64k-hwe-24.04Ubuntu
Fixed in:6.8.0-35.35USN-6816-1
linux-image-generic-hwe-24.04Ubuntu
Fixed in:6.8.0-35.35USN-6816-1
linux-image-generic-lpaeUbuntu
Fixed in:6.8.0-35.35USN-6816-1
linux-image-gkeUbuntu
Fixed in:6.8.0-1004.7USN-6817-3
linux-image-ibmUbuntu
Fixed in:6.8.0-1006.6USN-6816-1
linux-image-ibm-classicUbuntu
Fixed in:6.8.0-1006.6USN-6816-1
linux-image-ibm-lts-24.04Ubuntu
Fixed in:6.8.0-1006.6USN-6816-1
linux-image-kvmUbuntu
Fixed in:6.8.0-35.35USN-6816-1
linux-image-lowlatencyUbuntu
Fixed in:6.8.0-35.35.1USN-6816-1
linux-image-lowlatency-64kUbuntu
Fixed in:6.8.0-35.35.1USN-6816-1
linux-image-oem-24.04Ubuntu
Fixed in:6.8.0-1006.6+1USN-6817-2
linux-image-oem-24.04aUbuntu
Fixed in:6.8.0-1006.6+1USN-6817-2
linux-image-oracleUbuntu
Fixed in:6.8.0-1006.6USN-6878-1
linux-image-oracle-64kUbuntu
Fixed in:6.8.0-1006.6USN-6878-1
linux-image-raspiUbuntu
Fixed in:6.8.0-1005.5USN-6816-1
linux-image-virtualUbuntu
Fixed in:6.8.0-35.35USN-6816-1
linux-image-virtual-hwe-24.04Ubuntu
Fixed in:6.8.0-35.35USN-6816-1
linux-lowlatencyUbuntu
Fixed in:6.8.0-35.35.1USN-6816-1
linux-oem-6.8Ubuntu
Fixed in:6.8.0-1006.6USN-6817-2
linux-oracleUbuntu
Fixed in:6.8.0-1006.6USN-6878-1
linux-raspiUbuntu
Fixed in:6.8.0-1005.5USN-6816-1

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

CVSS v3 Vector

Exploitability

Attack VectorLocal
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityNone
AvailabilityHigh

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

Exploit Intelligence

0.17%probability of exploitation in 30 days
7thpercentile

Low risk: more likely to be exploited than 7% of all known CVEs.

References

Related Vulnerabilities

Other CWE-667 vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2019-10072High7.573%-Fix
CVE-2002-1850High7.517%-Fix
CVE-2009-2699High7.514%-Fix
CVE-2004-0174High7.512%--
CVE-2009-4272High7.511%--
CVE-2020-24606High8.65.2%-Fix
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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 2025-09-26.