CVE-2026-99115
kernel: ksmbd: fill in FileSysIdentifier in FS_POSIX_INFORMATION
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · October 28, 2026
Updated · October 29, 2026
Description
A flaw was found in the Linux kernel's ksmbd (Server Message Block) server. This flaw allows a remote attacker to cause an information disclosure by sending crafted compound requests. Because the server fails to properly initialize all response fields during filesystem information queries, unassigned buffer space can leak residual memory from previous operations to the client.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 4.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CWE-908 · Use of Uninitialized Resource