The Linux kernel before 5.1-rc5 allows page->_refcount reference count overflow, with resultant use-after-free issues, if about 140 GiB of…

Description

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.

Scores

EPSS (exploitation in 30 days)

0.71% · top 46% of all CVEs (6 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.

Weakness

• n/a
• CWE-416 (opens in a new tab)All about CWE-416 and its CVEs

Affected products

• n/a

  • affected n/a

References (30)

• 108054 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
• [oss-security] 20190429 Linux kernel: multiple issues (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• openSUSE-SU-2019:1570 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• openSUSE-SU-2019:1571 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• openSUSE-SU-2019:1579 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• USN-4069-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• USN-4069-2 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• USN-4115-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• USN-4118-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• RHSA-2019:2703 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• RHSA-2019:2741 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• [debian-lts-announce] 20190914 [SECURITY] [DLA 1919-1] linux-4.9 security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• [debian-lts-announce] 20190915 [SECURITY] [DLA 1919-2] linux-4.9 security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• USN-4145-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• RHSA-2020:0174 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• https://security.netapp.com/advisory/ntap-20190517-0005/ (opens in a new tab)x_refsource_CONFIRMx_transferred
• https://www.oracle.com/security-alerts/cpuApr2021.html (opens in a new tab)x_refsource_MISCx_transferred
• https://github.com/torvalds/linux/commit/6b3a707736301c2128ca85ce85fb13f60b5e350a (opens in a new tab)x_refsource_MISCx_transferred
• https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6b3a707736301c2128ca85ce85fb13f60b5e350a (opens in a new tab)x_refsource_MISCx_transferred
• https://github.com/torvalds/linux/commit/15fab63e1e57be9fdb5eec1bbc5916e9825e9acb (opens in a new tab)x_refsource_MISCx_transferred
• https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=15fab63e1e57be9fdb5eec1bbc5916e9825e9acb (opens in a new tab)x_refsource_MISCx_transferred
• https://github.com/torvalds/linux/commit/8fde12ca79aff9b5ba951fce1a2641901b8d8e64 (opens in a new tab)x_refsource_MISCx_transferred
• https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8fde12ca79aff9b5ba951fce1a2641901b8d8e64 (opens in a new tab)x_refsource_MISCx_transferred
• https://github.com/torvalds/linux/commit/88b1a17dfc3ed7728316478fae0f5ad508f50397 (opens in a new tab)x_refsource_MISCx_transferred
• https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=88b1a17dfc3ed7728316478fae0f5ad508f50397 (opens in a new tab)x_refsource_MISCx_transferred
• https://github.com/torvalds/linux/commit/f958d7b528b1b40c44cfda5eabe2d82760d868c3 (opens in a new tab)x_refsource_MISCx_transferred
• https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f958d7b528b1b40c44cfda5eabe2d82760d868c3 (opens in a new tab)x_refsource_MISCx_transferred
• https://bugs.chromium.org/p/project-zero/issues/detail?id=1752 (opens in a new tab)x_refsource_MISCx_transferred
• https://lwn.net/Articles/786044/ (opens in a new tab)x_refsource_MISCx_transferred
• https://support.f5.com/csp/article/K14255532 (opens in a new tab)x_refsource_CONFIRMx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2019-11487](https://trackcve.app/badge/CVE-2019-11487.svg)](https://trackcve.app/cve/CVE-2019-11487)

Record last updated 4 Aug 2024, 22:55 UTC.