CVE-2021-4155
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.3%
exploitation probability
0.3%top 77% of all CVEs
observed exploitation
nono source reports it
A data leak flaw was found in the way XFS_IOC_ALLOCSP IOCTL in the XFS filesystem allowed for size increase of files with unaligned size. A local attacker could use this flaw to leak data on the XFS filesystem otherwise not accessible to them.
Affected products
n/a · kernelReferences
https://access.redhat.com/security/cve/CVE-2021-4155https://bugzilla.redhat.com/show_bug.cgi?id=2034813https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=983d8e60f50806f90534cc5373d0ce867e5aaf79https://security-tracker.debian.org/tracker/CVE-2021-4155https://www.openwall.com/lists/oss-security/2022/01/10/1