CVE & CISA-KEV Catalog

CVE-2026-23411

HIGH
7.8
CVSS v3
NVD

Description

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix race between freeing data and fs accessing it AppArmor was putting the reference to i_private data on its end after removing the original entry from the file system. However the inode can aand does live beyond that point and it is possible that some of the fs call back functions will be invoked after the reference has been put, which results in a race between freeing the data and accessing it through the fs. While the rawdata/loaddata is the most likely candidate to fail the race, as it has the fewest references. If properly crafted it might be possible to trigger a race for the other types stored in i_private. Fix this by moving the put of i_private referenced data to the correct place which is during inode eviction.

How to fix

Remediation Available
linuxDebian
Fixed in:5.10.251-1CVE-2026-23411
Fixed in:6.1.164-1CVE-2026-23411
Fixed in:6.12.74-2CVE-2026-23411
Fixed in:6.19.6-2CVE-2026-23411
linuxUbuntu
Fixed in:4.15.0-249.261USN-8266-1
linux-awsUbuntu
Fixed in:4.15.0-1191.204USN-8266-1
linux-aws-fipsUbuntu
Fixed in:4.15.0-2129.135USN-8266-1
linux-aws-hweUbuntu
Fixed in:4.15.0-1191.204~16.04.1USN-8266-1
linux-azureUbuntu
Fixed in:4.15.0-1200.215~16.04.1USN-8267-1
Fixed in:5.15.0-1109.118USN-8163-2
linux-azure-4.15Ubuntu
Fixed in:4.15.0-1200.215USN-8266-1
linux-azure-5.15Ubuntu
Fixed in:5.15.0-1110.119~20.04.1USN-8243-1
linux-azure-5.4Ubuntu
Fixed in:5.4.0-1161.167~18.04.1USN-8201-1
linux-azure-fipsUbuntu
Fixed in:4.15.0-2109.115USN-8267-1
Fixed in:5.15.0-1109.118+fips1USN-8163-1
Fixed in:6.8.0-1052.58+fips1USN-8165-1
linux-bluefieldUbuntu
Fixed in:5.4.0-1116.123USN-8224-1
linux-fipsUbuntu
Fixed in:4.15.0-1146.158USN-8266-1
linux-gcpUbuntu
Fixed in:4.15.0-1184.201~16.04.1USN-8266-1
linux-gcp-4.15Ubuntu
Fixed in:4.15.0-1184.201USN-8266-1
linux-gcp-fipsUbuntu
Fixed in:4.15.0-2092.98USN-8266-1
linux-hweUbuntu
Fixed in:4.15.0-249.261~16.04.1USN-8266-1
linux-image-4.15.0-1146-fipsUbuntu
Fixed in:4.15.0-1146.158USN-8266-1
linux-image-4.15.0-1153-oracleUbuntu
Fixed in:4.15.0-1153.164~16.04.1USN-8267-1
Fixed in:4.15.0-1153.164USN-8266-1
linux-image-4.15.0-1173-kvmUbuntu
Fixed in:4.15.0-1173.178USN-8266-1
linux-image-4.15.0-1184-gcpUbuntu
Fixed in:4.15.0-1184.201~16.04.1USN-8266-1
Fixed in:4.15.0-1184.201USN-8266-1
linux-image-4.15.0-1191-awsUbuntu
Fixed in:4.15.0-1191.204~16.04.1USN-8266-1
Fixed in:4.15.0-1191.204USN-8266-1
linux-image-4.15.0-1200-azureUbuntu
Fixed in:4.15.0-1200.215~16.04.1USN-8267-1
Fixed in:4.15.0-1200.215USN-8266-1
linux-image-4.15.0-2092-gcp-fipsUbuntu
Fixed in:4.15.0-2092.98USN-8266-1
linux-image-4.15.0-2109-azure-fipsUbuntu
Fixed in:4.15.0-2109.115USN-8267-1
linux-image-4.15.0-2129-aws-fipsUbuntu
Fixed in:4.15.0-2129.135USN-8266-1
linux-image-4.15.0-249-genericUbuntu
Fixed in:4.15.0-249.261~16.04.1USN-8266-1
Fixed in:4.15.0-249.261USN-8266-1
linux-image-4.15.0-249-lowlatencyUbuntu
Fixed in:4.15.0-249.261~16.04.1USN-8266-1
Fixed in:4.15.0-249.261USN-8266-1
linux-image-5.15.0-1096-intel-iot-realtimeUbuntu
Fixed in:5.15.0-1096.98USN-8164-1
linux-image-5.15.0-1109-azureUbuntu
Fixed in:5.15.0-1109.118USN-8163-2
linux-image-5.15.0-1109-azure-fipsUbuntu
Fixed in:5.15.0-1109.118+fips1USN-8163-1
linux-image-5.15.0-1110-azureUbuntu
Fixed in:5.15.0-1110.119~20.04.1USN-8243-1
linux-image-5.4.0-1116-bluefieldUbuntu
Fixed in:5.4.0-1116.123USN-8224-1
linux-image-5.4.0-1139-raspiUbuntu
Fixed in:5.4.0-1139.152~18.04.1USN-8098-10
Fixed in:5.4.0-1139.152USN-8098-10
linux-image-5.4.0-1161-azureUbuntu
Fixed in:5.4.0-1161.167~18.04.1USN-8201-1
linux-image-6.17.0-1017-oemUbuntu
Fixed in:6.17.0-1017.17USN-8152-1
linux-image-6.8.0-1029-xilinxUbuntu
Fixed in:6.8.0-1029.30USN-8261-1
linux-image-6.8.0-1052-azure-fipsUbuntu
Fixed in:6.8.0-1052.58+fips1USN-8165-1
linux-image-aws-4.15Ubuntu
Fixed in:4.15.0.1191.189USN-8266-1
linux-image-aws-fipsUbuntu
Fixed in:4.15.0.2129.123USN-8266-1
linux-image-aws-fips-4.15Ubuntu
Fixed in:4.15.0.2129.123USN-8266-1
linux-image-aws-hweUbuntu
Fixed in:4.15.0.1191.204~16.04.1USN-8266-1
linux-image-aws-lts-18.04Ubuntu
Fixed in:4.15.0.1191.189USN-8266-1
linux-image-azureUbuntu
Fixed in:4.15.0.1200.215~16.04.1USN-8267-1
Fixed in:5.4.0.1161.167~18.04.1USN-8201-1
Fixed in:5.15.0.1110.119~20.04.1USN-8243-1
linux-image-azure-4.15Ubuntu
Fixed in:4.15.0.1200.168USN-8266-1
linux-image-azure-5.15Ubuntu
Fixed in:5.15.0.1110.119~20.04.1USN-8243-1
Fixed in:5.15.0.1109.107USN-8163-2
linux-image-azure-5.4Ubuntu
Fixed in:5.4.0.1161.167~18.04.1USN-8201-1
linux-image-azure-cvmUbuntu
Fixed in:5.15.0.1110.119~20.04.1USN-8243-1
linux-image-azure-fipsUbuntu
Fixed in:4.15.0.2109.105USN-8267-1
Fixed in:5.15.0.1109.94USN-8163-1
Fixed in:6.8.0-1052.58+fips1USN-8165-1
linux-image-azure-fips-4.15Ubuntu
Fixed in:4.15.0.2109.105USN-8267-1
linux-image-azure-fips-5.15Ubuntu
Fixed in:5.15.0.1109.94USN-8163-1
linux-image-azure-fips-6.8Ubuntu
Fixed in:6.8.0-1052.58+fips1USN-8165-1
linux-image-azure-lts-18.04Ubuntu
Fixed in:4.15.0.1200.168USN-8266-1
linux-image-azure-lts-22.04Ubuntu
Fixed in:5.15.0.1109.107USN-8163-2
linux-image-bluefieldUbuntu
Fixed in:5.4.0.1116.112USN-8224-1
linux-image-bluefield-5.4Ubuntu
Fixed in:5.4.0.1116.112USN-8224-1
linux-image-fipsUbuntu
Fixed in:4.15.0.1146.143USN-8266-1
linux-image-gcpUbuntu
Fixed in:4.15.0.1184.201~16.04.1USN-8266-1
linux-image-gcp-4.15Ubuntu
Fixed in:4.15.0.1184.197USN-8266-1
linux-image-gcp-fipsUbuntu
Fixed in:4.15.0.2092.90USN-8266-1
linux-image-gcp-fips-4.15Ubuntu
Fixed in:4.15.0.2092.90USN-8266-1
linux-image-gcp-lts-18.04Ubuntu
Fixed in:4.15.0.1184.197USN-8266-1
linux-image-genericUbuntu
Fixed in:4.15.0.249.233USN-8266-1
linux-image-generic-hwe-16.04Ubuntu
Fixed in:4.15.0.249.261~16.04.1USN-8266-1
linux-image-gkeUbuntu
Fixed in:4.15.0.1184.201~16.04.1USN-8266-1
linux-image-intel-iot-realtimeUbuntu
Fixed in:5.15.0.1096.100USN-8164-1
linux-image-intel-iot-realtime-5.15Ubuntu
Fixed in:5.15.0.1096.100USN-8164-1
linux-image-kvmUbuntu
Fixed in:4.15.0.1173.164USN-8266-1
linux-image-lowlatencyUbuntu
Fixed in:4.15.0.249.233USN-8266-1
linux-image-lowlatency-hwe-16.04Ubuntu
Fixed in:4.15.0.249.261~16.04.1USN-8266-1
linux-image-oemUbuntu
Fixed in:4.15.0.249.261~16.04.1USN-8266-1
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:4.15.0.1153.164~16.04.1USN-8267-1
linux-image-oracle-4.15Ubuntu
Fixed in:4.15.0.1153.158USN-8266-1
linux-image-oracle-lts-18.04Ubuntu
Fixed in:4.15.0.1153.158USN-8266-1
linux-image-raspiUbuntu
Fixed in:5.4.0.1139.170USN-8098-10
linux-image-raspi-5.4Ubuntu
Fixed in:5.4.0.1139.152~18.04.1USN-8098-10
Fixed in:5.4.0.1139.170USN-8098-10
linux-image-raspi-hwe-18.04Ubuntu
Fixed in:5.4.0.1139.152~18.04.1USN-8098-10
linux-image-raspi2Ubuntu
Fixed in:5.4.0.1139.170USN-8098-10
linux-image-virtualUbuntu
Fixed in:4.15.0.249.233USN-8266-1
linux-image-virtual-hwe-16.04Ubuntu
Fixed in:4.15.0.249.261~16.04.1USN-8266-1
linux-image-xilinxUbuntu
Fixed in:6.8.0.1029.30USN-8261-1
linux-image-xilinx-6.8Ubuntu
Fixed in:6.8.0.1029.30USN-8261-1
linux-image-xilinx-zynqmpUbuntu
Fixed in:6.8.0.1029.30USN-8261-1
linux-intel-iot-realtimeUbuntu
Fixed in:5.15.0-1096.98USN-8164-1
linux-kvmUbuntu
Fixed in:4.15.0-1173.178USN-8266-1
linux-oem-6.17Ubuntu
Fixed in:6.17.0-1017.17USN-8152-1
linux-oracleUbuntu
Fixed in:4.15.0-1153.164~16.04.1USN-8267-1
Fixed in:4.15.0-1153.164USN-8266-1
linux-raspiUbuntu
Fixed in:5.4.0-1139.152USN-8098-10
linux-raspi-5.4Ubuntu
Fixed in:5.4.0-1139.152~18.04.1USN-8098-10
linux-xilinxUbuntu
Fixed in:6.8.0-1029.30USN-8261-1

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

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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

Exploit Intelligence

0.14%probability of exploitation in 30 days
4thpercentile

Low risk: more likely to be exploited than 4% of all known CVEs.

References

Related Vulnerabilities

Other CWE-362 (Race Condition) vulnerabilities, ordered by exploit likelihood. View all

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CVE-2024-6387High8.1100%-Fix
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CVE-2018-15473Medium5.399%-Fix
CVE-2024-27983High8.287%-Fix
CVE-2014-0226Medium6.886%-Fix
CVE-2016-5195High7.084%KEVFix
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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 2026-04-24.