CVE-2021-40490: Race Condition
A race condition was discovered in ext4writeinlinedataend in fs/ext4/inline.c in the ext4 subsystem in the Linux kernel through 5.13.13.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 5.10.223-1Fixed in 5.10.234-1Fixed in 6.1.129-1Fixed in 6.1.135-1Fixed in 6.12.25-1
Event History
Frequently Asked Questions
What is the severity of CVE-2021-40490?
CVE-2021-40490 is classified with a moderate severity level due to the potential for data corruption in the ext4 filesystem.
How do I fix CVE-2021-40490?
To remediate CVE-2021-40490, upgrade to a patched version of the Linux kernel, specifically versions greater than 5.13.13.
Which Linux distributions are affected by CVE-2021-40490?
CVE-2021-40490 affects various Linux distributions including Debian and Fedora, particularly versions up to their respective kernel versions 5.13.13.
What kind of vulnerability is CVE-2021-40490?
CVE-2021-40490 is a race condition vulnerability that affects the ext4 subsystem of the Linux kernel.
Can CVE-2021-40490 lead to data loss?
Yes, CVE-2021-40490 can potentially result in data loss or corruption if exploited due to the nature of the race condition.