CVE-2019-15030

In the Linux kernel through 5.2.14 on the powerpc platform, a local user can read vector registers of other users' processes via a Facility Unavailable exception. To exploit the venerability, a local user starts a transaction (via the hardware transactional memory instruction tbegin) and then accesses vector registers. At some point, the vector registers will be corrupted with the values from a different local Linux process because of a missing arch/powerpc/kernel/process.c check.

• CWE-862

• http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.htmlThird Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.htmlThird Party Advisory
• http://www.openwall.com/lists/oss-security/2019/09/10/3Mailing List, Patch, Third Party Advisory
• https://access.redhat.com/errata/RHSA-2020:0740
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8205d5d98ef7f155de211f5e2eb6ca03d95a5a60Exploit, Mailing List, Patch, Vendor Advisory
• https://security.netapp.com/advisory/ntap-20191004-0001/Third Party Advisory
• https://usn.ubuntu.com/4135-1/Third Party Advisory
• https://usn.ubuntu.com/4135-2/Third Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.htmlThird Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.htmlThird Party Advisory
• http://www.openwall.com/lists/oss-security/2019/09/10/3Mailing List, Patch, Third Party Advisory
• https://access.redhat.com/errata/RHSA-2020:0740
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8205d5d98ef7f155de211f5e2eb6ca03d95a5a60Exploit, Mailing List, Patch, Vendor Advisory
• https://security.netapp.com/advisory/ntap-20191004-0001/Third Party Advisory
• https://usn.ubuntu.com/4135-1/Third Party Advisory
• https://usn.ubuntu.com/4135-2/Third Party Advisory

Published

Sep 13, 2019

Last Modified

Jun 17, 2026

Status

Modified

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