Vulnerability details
CVE-2026-98174
Linux Linux
smb: client: fix rlist race and missing initialization
CVSS 3.1
7.5High
Official description
In the Linux kernel, the following vulnerability has been resolved: smb: client: fix rlist race and missing initialization TCP_Server_Info.rlist is allocated via kzalloc which zeros both ->next and ->prev to NULL instead of pointing to itself, making list_empty() always return false and list_add() dereference a NULL ->prev pointer. Also, cifs_signal_cifsd_for_reconnect() can be called concurrently from multiple cifsd threads, allowing the same server's rlist node to be added twice into the local list, corrupting it.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.5High | 3.1 | CVEProject cvelistV5 (CNA) (Linux) | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Linux | Linux | v < 6.6.158 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | v < 6.12.112 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | v < 6.18.54 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | v < 7.2.8 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 ≤ v < b5f924ffbfa976e4b97f17e8132c595b97482c2d | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 ≤ v < 5f270f091256da1338c3631083e15d7f83cc05e1 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 ≤ v < 5a8f82f9c5839389cf4036029dd75a9911049e83 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 ≤ v < 04082b1833856cb9ed87e0d3d5f04cbf836cf7da | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 ≤ v < c037d6bde3dd5fa00b017b6b98a5389ec0ebc02f | CVEProject cvelistV5 (CNA) |
References and advisories
5- https://git.kernel.org/stable/c/b5f924ffbfa976e4b97f17e8132c595b97482c2d
- https://git.kernel.org/stable/c/5a8f82f9c5839389cf4036029dd75a9911049e83
- https://git.kernel.org/stable/c/04082b1833856cb9ed87e0d3d5f04cbf836cf7da
- https://git.kernel.org/stable/c/c037d6bde3dd5fa00b017b6b98a5389ec0ebc02f
- https://git.kernel.org/stable/c/5f270f091256da1338c3631083e15d7f83cc05e1
Kolun on Telegram @kolunsec
Exploited CVEs, key news and a daily digest
Alerts for this product's next CVEsFollow the product to get new vulnerabilities on Telegram.
Details
- Published
- 2026-10-06
- Last updated
- 2026-10-19
- State
- Published
- Assigner (CNA)
- Linux
Exploit prediction (EPSS)
0.33%
Probability of exploitation in 30 days
26.3%
Percentile (among all CVEs)
Weaknesses (CWE)
- —