CVE-2026-31608
Description
In the Linux kernel, the following vulnerability has been resolved: smb: server: avoid double-free in smb_direct_free_sendmsg after smb_direct_flush_send_list() smb_direct_flush_send_list() already calls smb_direct_free_sendmsg(), so we should not call it again after post_sendmsg() moved it to the batch list.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Linux kernel Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | 6.18.24 |
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 0 |
| sid | Fixed | 6.19.14-1 |
| forky | Fixed | 6.19.14-1 |
| bullseye | Fixed | 0 |
| bookworm | Fixed | 0 |
References
- https://git.kernel.org/stable/c/2ba03f46132b0d1a7bafb86e1ef61951a2254023
- https://git.kernel.org/stable/c/6968c91fab05b8fc4d6700e0cf34472bb422df25
- https://git.kernel.org/stable/c/830de6eeb9db4cb7e758201fb99328ef4ca4b032
- https://git.kernel.org/stable/c/84ff995ae826aa6bbcc6c7b9ea569ff67c021d72
- https://www.suse.com/security/cve/CVE-2026-31608.html
- https://security-tracker.debian.org/tracker/CVE-2026-31608
CWEs
CWE-415
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.