CVE-2025-37778 | 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.
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.
- 🔗 git.kernel.org/stable/c/b61f04d5d73c53d183019bafe22fb700…
- 🔗 git.kernel.org/stable/c/d5b554bc8d554ed6ddf443d3db2fad9f…
- 🔗 git.kernel.org/stable/c/1db2451de23e98bc864c6a6e52aa0d82…
- 🔗 git.kernel.org/stable/c/6e30c0e10210c714f3d4453dc258d4ab…
- 🔗 git.kernel.org/stable/c/e83e39a5f6a01a81411a4558a59a10f8…
- 🔗 git.kernel.org/stable/c/1e440d5b25b7efccb3defe542a73c510…
- 🔗 lists.debian.org/debian-lts-announce/2025/05/msg00045.html
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CVE-2025-37778 | 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.
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 s