In FreeBSD 12.2-STABLE before r368969, 11.4-STABLE before r369047, 12.2-RELEASE before p3, 12.1-RELEASE before p13 and 11.4-RELEASE before p7 several file systems were not properly initializing the d_off field of the dirent structures returned by VOP_READDIR. In particular, tmpfs(5), smbfs(5), autofs(5) and mqueuefs(5) were failing to do so. As a result, eight uninitialized kernel stack bytes may be leaked to userspace by these file systems.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: freebsd

Published: 2021-03-26T20:44:43

Updated: 2024-08-04T15:33:05.687Z

Reserved: 2020-09-14T00:00:00

Link: CVE-2020-25578

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-03-26T21:15:12.600

Modified: 2024-11-21T05:18:09.560

Link: CVE-2020-25578

cve-icon Redhat

No data.