CVE-2025-40103
smb: client: Fix refcount leak for cifs_sb_tlink
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: smb: client: Fix refcount leak for cifs_sb_tlink Fix three refcount inconsistency issues related to `cifs_sb_tlink`. Comments for `cifs_sb_tlink` state that `cifs_put_tlink()` needs to be called after successful calls to `cifs_sb_tlink()`. Three calls fail to update refcount accordingly, leading to possible resource leaks.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Oct 30, 2025 |
| Last Updated | Apr 18, 2026 |
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Affected Versions
Linux / Linux
8ceb984379462f94bdebef3288d569c6e1f912ea < d3c8ea197055c260119a13360e8202a27e53e1e4 8ceb984379462f94bdebef3288d569c6e1f912ea < 790282abe9d805f08618c1c24ea2529e7259b692 8ceb984379462f94bdebef3288d569c6e1f912ea < d7dd034c14928306db1b46be277ae439b84dacf9 8ceb984379462f94bdebef3288d569c6e1f912ea < e15605b68b490186da2ad8029c0351a9cfb0b9af 8ceb984379462f94bdebef3288d569c6e1f912ea < 896bb31e1416f582503db1350cf1bd10dc64e5a6 8ceb984379462f94bdebef3288d569c6e1f912ea < c2b77f42205ef485a647f62082c442c1cd69d3fc
Linux / Linux
3.7
References
git.kernel.org: https://git.kernel.org/stable/c/d3c8ea197055c260119a13360e8202a27e53e1e4 git.kernel.org: https://git.kernel.org/stable/c/790282abe9d805f08618c1c24ea2529e7259b692 git.kernel.org: https://git.kernel.org/stable/c/d7dd034c14928306db1b46be277ae439b84dacf9 git.kernel.org: https://git.kernel.org/stable/c/e15605b68b490186da2ad8029c0351a9cfb0b9af git.kernel.org: https://git.kernel.org/stable/c/896bb31e1416f582503db1350cf1bd10dc64e5a6 git.kernel.org: https://git.kernel.org/stable/c/c2b77f42205ef485a647f62082c442c1cd69d3fc