CVE-2026-98174
In the Linux kernel, the following vulnerability has been resolved: smb: client: fix rlist race…
- Risk score
- 66/100
- CVSS
- 7.5 v3.1
- Exploit chance (30 days)
- 0.4%
- Published
- 6 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- 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 -…
- Affected
- See advisory
- Fix
- Apply the vendor's security update; see the linked advisory.
- Exploitation
- No known exploitation
Why it is Amber
- CVSS 7.5 high
- Remotely exploitable without logging in
- On your watchlist: linux kernel
References
- https://git.kernel.org/stable/c/04082b1833856cb9ed87e0d3d5f04cbf836cf7da
- https://git.kernel.org/stable/c/5a8f82f9c5839389cf4036029dd75a9911049e83
- https://git.kernel.org/stable/c/5f270f091256da1338c3631083e15d7f83cc05e1
- https://git.kernel.org/stable/c/b5f924ffbfa976e4b97f17e8132c595b97482c2d
- https://git.kernel.org/stable/c/c037d6bde3dd5fa00b017b6b98a5389ec0ebc02f
Original 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.
Last activity 6 Oct 2026. Patch Forecast updates every hour.