CVE-2025-37778

Published: May 3, 2025Last modified: May 3, 2025

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: Fix dangling pointer in krb_authenticate krb_authenticate frees sess->user and does not set the pointer to NULL. It calls ksmbd_krb5_authenticate to reinitialise sess->user but that function may return without doing so. If that happens then smb2_sess_setup, which calls krb_authenticate, will be accessing free'd memory when it later uses sess->user.

Status

References

• https://git.kernel.org/stable/c/1db2451de23e98bc864c6a6e52aa0d82c91cb325
• https://git.kernel.org/stable/c/1e440d5b25b7efccb3defe542a73c51005799a5f
• https://git.kernel.org/stable/c/6e30c0e10210c714f3d4453dc258d4abcc70364e
• https://git.kernel.org/stable/c/d5b554bc8d554ed6ddf443d3db2fad9f665cec10
• https://git.kernel.org/stable/c/e83e39a5f6a01a81411a4558a59a10f87aa88dd6