Tracker / CVE-2019-11487
CVE-2019-11487
High 7.8
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.
Affected products and versions
| canonical | ubuntu_linux |
|---|---|
| debian | debian_linux |
| linux | linux_kernel |
| linux | linux_kernel · … → 4.4.216 |
| linux | linux_kernel · 4.10 → 4.14.116 |
| linux | linux_kernel · 4.15 → 4.19.39 |
| linux | linux_kernel · 4.20 → 5.0.12 |
| linux | linux_kernel · 4.5 → 4.9.181 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.