CVE-2025-37778
ksmbd: Fix dangling pointer in krb_authenticate
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | May 1, 2025 |
| Last Updated | Apr 18, 2026 |
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Affected Versions
Linux / Linux
0626e6641f6b467447c81dd7678a69c66f7746cf < b61f04d5d73c53d183019bafe22fb700a739bac5 0626e6641f6b467447c81dd7678a69c66f7746cf < d5b554bc8d554ed6ddf443d3db2fad9f665cec10 0626e6641f6b467447c81dd7678a69c66f7746cf < 1db2451de23e98bc864c6a6e52aa0d82c91cb325 0626e6641f6b467447c81dd7678a69c66f7746cf < 6e30c0e10210c714f3d4453dc258d4abcc70364e 0626e6641f6b467447c81dd7678a69c66f7746cf < e83e39a5f6a01a81411a4558a59a10f87aa88dd6 0626e6641f6b467447c81dd7678a69c66f7746cf < 1e440d5b25b7efccb3defe542a73c51005799a5f
Linux / Linux
5.15
References
git.kernel.org: https://git.kernel.org/stable/c/b61f04d5d73c53d183019bafe22fb700a739bac5 git.kernel.org: https://git.kernel.org/stable/c/d5b554bc8d554ed6ddf443d3db2fad9f665cec10 git.kernel.org: https://git.kernel.org/stable/c/1db2451de23e98bc864c6a6e52aa0d82c91cb325 git.kernel.org: https://git.kernel.org/stable/c/6e30c0e10210c714f3d4453dc258d4abcc70364e git.kernel.org: https://git.kernel.org/stable/c/e83e39a5f6a01a81411a4558a59a10f87aa88dd6 git.kernel.org: https://git.kernel.org/stable/c/1e440d5b25b7efccb3defe542a73c51005799a5f lists.debian.org: https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html