__btrfs_free_extent in fs/btrfs/extent-tree.c in the Linux kernel through 5.3.12 calls btrfs_print_leaf in a certain ENOENT case, which allows local users to obtain potentially sensitive information about register values via the dmesg program. NOTE: The BTRFS development team disputes this issues as not being a vulnerability because “1) The kernel provide facilities to restrict access to dmesg - dmesg_restrict=1 sysctl option. So it's really up to the system administrator to judge whether dmesg access shall be disallowed or not. 2) WARN/WARN_ON are widely used macros in the linux kernel. If this CVE is considered valid this would mean there are literally thousands CVE lurking in the kernel - something which clearly is not the case.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2019-11-21T01:40:53

Updated: 2024-08-05T02:09:38.149Z

Reserved: 2019-11-17T00:00:00

Link: CVE-2019-19039

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2019-11-21T02:15:23.337

Modified: 2024-08-05T02:15:57.273

Link: CVE-2019-19039

cve-icon Redhat

Severity : Low

Publid Date: 2019-11-20T00:00:00Z

Links: CVE-2019-19039 - Bugzilla