What’s Vulnerable › Vulnerabilities

CVE-2019-15538

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-08-25 · updated 2026-06-17
• Weakness: CWE-400

Description

An issue was discovered in xfs_setattr_nonsize in fs/xfs/xfs_iops.c in the Linux kernel through 5.2.9. XFS partially wedges when a chgrp fails on account of being out of disk quota. xfs_setattr_nonsize is failing to unlock the ILOCK after the xfs_qm_vop_chown_reserve call fails. This is primarily a local DoS attack vector, but it might result as well in remote DoS if the XFS filesystem is exported for instance via NFS.

Affected products

• Canonical Ubuntu Linux: 16.04, 18.04, 19.04
• Debian Linux: 8.0
• Fedoraproject Fedora: 29, 30
• Linux kernel: from 4.7 before 4.9.191; from 4.14 before 4.14.141; from 4.19 before 4.19.69; from 5.2 before 5.2.11; 5.3, 5.3-rc1, 5.3-rc2, 5.3-rc3, 5.3-rc4, 5.3-rc5 (+1) — fixed in 4.14.141, 4.19.69, 4.9.191, 5.2.11
• NetApp Aff A700S Firmware: all versions
• NetApp Data Availability Services: all versions
• NetApp H300E Firmware: all versions
• NetApp H300S Firmware: all versions
• NetApp H410C Firmware: all versions
• NetApp H410S Firmware: all versions
• NetApp H500E Firmware: all versions
• NetApp H500S Firmware: all versions
• NetApp H610S Firmware: all versions
• NetApp H700E Firmware: all versions
• NetApp H700S Firmware: all versions
• NetApp Hci Management Node: all versions
• NetApp Solidfire: all versions
• openSUSE Leap: 15.0, 15.1

How to fix

Upgrade to a fixed version: Linux kernel 4.14.141, 4.19.69, 4.9.191, 5.2.11. Check the vendor advisory for mitigations.

References

• http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.html
• http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.html
• https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1fb254aa983bf190cfd685d40c64a480a9bafaee
• https://github.com/torvalds/linux/commit/1fb254aa983bf190cfd685d40c64a480a9bafaee
• https://lists.debian.org/debian-lts-announce/2019/09/msg00014.html
• https://lists.debian.org/debian-lts-announce/2019/09/msg00015.html
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/O3RUDQJXRJQVGHCGR4YZWTQ3ECBI7TXH/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T4JZ6AEUKFWBHQAROGMQARJ274PQP2QP/
• https://lore.kernel.org/linux-xfs/20190823035528.GH1037422%40magnolia/
• https://lore.kernel.org/linux-xfs/20190823192433.GA8736%40eldamar.local
• https://security.netapp.com/advisory/ntap-20191004-0001/
• https://support.f5.com/csp/article/K32592426?utm_source=f5support&amp%3Butm_medium=RSS

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