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.
Metrics
CVSS 3.1 7.8/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 0626e6641f6b467447c81dd7678a69c66f7746cf, < b61f04d5d73c53d183019bafe22fb700a739bac5; >= 0626e6641f6b467447c81dd7678a69c66f7746cf, < d5b554bc8d554ed6ddf443d3db2fad9f665cec10; >= 0626e6641f6b467447c81dd7678a69c66f7746cf, < 1db2451de23e98bc864c6a6e52aa0d82c91cb325; >= 0626e6641f6b467447c81dd7678a69c66f7746cf, < 6e30c0e10210c714f3d4453dc258d4abcc70364e; >= 0626e6641f6b467447c81dd7678a69c66f7746cf, < e83e39a5f6a01a81411a4558a59a10f87aa88dd6; >= 0626e6641f6b467447c81dd7678a69c66f7746cf, < 1e440d5b25b7efccb3defe542a73c51005799a5f |
| Linux | Linux | 5.15 |
References
- https://git.kernel.org/stable/c/1db2451de23e98bc864c6a6e52aa0d82c91cb325Patch
- https://git.kernel.org/stable/c/1e440d5b25b7efccb3defe542a73c51005799a5fPatch
- https://git.kernel.org/stable/c/6e30c0e10210c714f3d4453dc258d4abcc70364ePatch
- https://git.kernel.org/stable/c/b61f04d5d73c53d183019bafe22fb700a739bac5
- https://git.kernel.org/stable/c/d5b554bc8d554ed6ddf443d3db2fad9f665cec10Patch
- https://git.kernel.org/stable/c/e83e39a5f6a01a81411a4558a59a10f87aa88dd6Patch
- https://lists.debian.org/debian-lts-announce/2025/05/msg00045.htmlMailing List, Third Party Advisory
Timeline
- Published
- May 1, 2025
- Last modified
- Oct 15, 2026
- NVD status
- Modified