Use After Free The advisory has been revoked - it doesn't affect any version of package kernel-headers (opens in a new tab)

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Snyk IDSNYK-RHEL7-KERNELHEADERS-4945697
published26 Jul 2021
disclosed22 Apr 2019

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Introduced: 22 Apr 2019

CVE-2019-11487 (opens in a new tab) CWE-416 (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:7.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-headers package and not the kernel-headers package as distributed by RHEL.

The Linux kernel before 5.1-rc5 allows page->_refcount reference count overflow, with resultant use-after-free issues, if about 140 GiB of RAM exists. This is related to fs/fuse/dev.c, fs/pipe.c, fs/splice.c, include/linux/mm.h, include/linux/pipe_fs_i.h, kernel/trace/trace.c, mm/gup.c, and mm/hugetlb.c. It can occur with FUSE requests.