CVE-2019-19448
High
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.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux Kernel
PublishedDec 8, 2019
First seenDec 8, 2019
How to fix
Update
- linux linux_kernel4.4.233, 4.9.233, 4.14.194, 4.19.141, 5.4.60, 5.7.17, 5.8.3 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 2.6.31 ≤ v < 4.4.233, 4.5.0 ≤ v < 4.9.233, 4.10 ≤ v < 4.14.194, 4.15 ≤ v < 4.19.141, 4.20 ≤ v < 5.4.60, 5.5.0 ≤ v < 5.7.17, 5.8 ≤ v < 5.8.3 | 4.4.233, 4.9.233, 4.14.194, 4.19.141, 5.4.60, 5.7.17, 5.8.3 |
| debian debian_linux | 9.0 | — |
| canonical ubuntu_linux | 14.04, 16.04, 18.04 | — |
| netapp active_iq_unified_manager | No range specified | — |
| netapp cloud_backup | No range specified | — |
| netapp data_availability_services | No range specified | — |
| netapp hci_management_node | No range specified | — |
| netapp solidfire | No range specified | — |
| netapp steelstore_cloud_integrated_storage | No range specified | — |
| netapp a700s_firmware | No range specified | — |
| netapp fas_8300_firmware | No range specified | — |
| netapp fas_8700_firmware | No range specified | — |
| netapp fas_a400_firmware | No range specified | — |
| netapp aff_8300_firmware | No range specified | — |
| netapp aff_8700_firmware | No range specified | — |
| netapp aff_a400_firmware | No range specified | — |
| netapp h610s_firmware | No range specified | — |
| netapp solidfire_baseboard_management_controller_firmware | No range specified | — |
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