CVE-2023-4130
ksmbd: fix wrong next length validation of ea buffer in smb2_set_ea()
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix wrong next length validation of ea buffer in smb2_set_ea() There are multiple smb2_ea_info buffers in FILE_FULL_EA_INFORMATION request from client. ksmbd find next smb2_ea_info using ->NextEntryOffset of current smb2_ea_info. ksmbd need to validate buffer length Before accessing the next ea. ksmbd should check buffer length using buf_len, not next variable. next is the start offset of current ea that got from previous ea.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Aug 16, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
0626e6641f6b467447c81dd7678a69c66f7746cf < aeb974907642be095e38ecb1a400ca583958b2b0 0626e6641f6b467447c81dd7678a69c66f7746cf < f339d76a3a972601d0738b881b099d49ebbdc3a2 0626e6641f6b467447c81dd7678a69c66f7746cf < 4bf629262f9118ee91b1c3a518ebf2b3bcb22180 0626e6641f6b467447c81dd7678a69c66f7746cf < 79ed288cef201f1f212dfb934bcaac75572fb8f6
Linux / Linux
5.15
References
git.kernel.org: https://git.kernel.org/stable/c/aeb974907642be095e38ecb1a400ca583958b2b0 git.kernel.org: https://git.kernel.org/stable/c/f339d76a3a972601d0738b881b099d49ebbdc3a2 git.kernel.org: https://git.kernel.org/stable/c/4bf629262f9118ee91b1c3a518ebf2b3bcb22180 git.kernel.org: https://git.kernel.org/stable/c/79ed288cef201f1f212dfb934bcaac75572fb8f6