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Improper Synchronization The advisory has been revoked - it doesn't affect any version of package dtb-socionext  (opens in a new tab)

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EPSS
0.56% (42nd percentile)

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  • Snyk IDSNYK-SLES151-DTBSOCIONEXT-2742584
  • published14 Apr 2022
  • disclosed20 Sept 2019
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Introduced: 20 Sep 2019

CVE-2019-15031  (opens in a new tab)
CWE-662  (opens in a new tab)

Amendment

The SLES security team deemed this advisory irrelevant for SLES:15.1.

NVD Description

Note: Versions mentioned in the description apply only to the upstream dtb-socionext package and not the dtb-socionext package as distributed by SLES.

In the Linux kernel through 5.2.14 on the powerpc platform, a local user can read vector registers of other users' processes via an interrupt. 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 MSR_TM_ACTIVE is misused in arch/powerpc/kernel/process.c.