CVE-2025-37778 Information

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.

Reference

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