CVE-2025-40103
Unknown
Description
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.
SeverityUnknown
CVSS—
Exploit probability—
Product
Linux
PublishedOct 30, 2025
First seenOct 30, 2025
How to fix
Update
- Linux Linuxd3c8ea197055c260119a13360e8202a27e53e1e4, 790282abe9d805f08618c1c24ea2529e7259b692, d7dd034c14928306db1b46be277ae439b84dacf9, e15605b68b490186da2ad8029c0351a9cfb0b9af, 896bb31e1416f582503db1350cf1bd10dc64e5a6, c2b77f42205ef485a647f62082c442c1cd69d3fc or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 8ceb984379462f94bdebef3288d569c6e1f912ea ≤ v < d3c8ea197055c260119a13360e8202a27e53e1e4, 8ceb984379462f94bdebef3288d569c6e1f912ea ≤ v < 790282abe9d805f08618c1c24ea2529e7259b692, 8ceb984379462f94bdebef3288d569c6e1f912ea ≤ v < d7dd034c14928306db1b46be277ae439b84dacf9, 8ceb984379462f94bdebef3288d569c6e1f912ea ≤ v < e15605b68b490186da2ad8029c0351a9cfb0b9af, 8ceb984379462f94bdebef3288d569c6e1f912ea ≤ v < 896bb31e1416f582503db1350cf1bd10dc64e5a6, 8ceb984379462f94bdebef3288d569c6e1f912ea ≤ v < c2b77f42205ef485a647f62082c442c1cd69d3fc, 3.7 | d3c8ea197055c260119a13360e8202a27e53e1e4, 790282abe9d805f08618c1c24ea2529e7259b692, d7dd034c14928306db1b46be277ae439b84dacf9, e15605b68b490186da2ad8029c0351a9cfb0b9af, 896bb31e1416f582503db1350cf1bd10dc64e5a6, c2b77f42205ef485a647f62082c442c1cd69d3fc |
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