Description
An issue was discovered in fs/xfs/libxfs/xfs_inode_buf.c in the Linux kernel through 4.17.3. A denial of service (memory corruption and BUG) can occur for a corrupted xfs image upon encountering an inode that is in extent format, but has more extents than fit in the inode fork.
References (6)
Core 6
Core References
Issue Tracking, Third Party Advisory x_refsource_misc
https://bugzilla.kernel.org/show_bug.cgi?id=199915
Patch, Third Party Advisory x_refsource_misc
https://github.com/torvalds/linux/commit/23fcb3340d033d9f081e21e6c12c2db7eaa541d3
Patch, Third Party Advisory x_refsource_misc
https://git.kernel.org/pub/scm/fs/xfs/xfs-linux.git/commit/?h=for-next&id=23fcb3340d033d9f081e21e6c12c2db7eaa541d3
Vendor Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2019:1350
Vendor Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2019:2043
Vendor Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2019:2029
Scores
CVSS v3
5.5
EPSS
0.0030
EPSS Percentile
53.3%
Attack Vector
LOCAL
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Details
CWE
CWE-787
Status
published
Products (1)
linux/linux_kernel
< 4.17.3
Published
Jul 03, 2018
Tracked Since
Feb 18, 2026