High severity7.8NVD Advisory· Published Dec 8, 2019· Updated Jun 17, 2026
CVE-2019-19448
CVE-2019-19448
Description
In the Linux kernel 5.0.21 and 5.3.11, mounting a crafted btrfs filesystem image, performing some operations, and then making a syncfs system call can lead to a use-after-free in try_merge_free_space in fs/btrfs/free-space-cache.c because the pointer to a left data structure can be the same as the pointer to a right data structure.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
22- Linux/Linux kerneldescription
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*+ 2 more
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
- cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:*
- cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:data_availability_services:-:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:a700s_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:fas_8300_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:fas_8700_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:fas_a400_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:aff_8300_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:aff_8700_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:aff_a400_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:h610s_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:solidfire_baseboard_management_controller_firmware:-:*:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
6- github.com/bobfuzzer/CVE/tree/master/CVE-2019-19448nvdExploitThird Party Advisory
- lists.debian.org/debian-lts-announce/2020/09/msg00025.htmlnvdMailing ListThird Party Advisory
- lists.debian.org/debian-lts-announce/2020/10/msg00032.htmlnvdMailing ListThird Party Advisory
- lists.debian.org/debian-lts-announce/2020/10/msg00034.htmlnvdMailing ListThird Party Advisory
- security.netapp.com/advisory/ntap-20200103-0001/nvdThird Party Advisory
- usn.ubuntu.com/4578-1/nvdThird Party Advisory
News mentions
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