CVE-2026-31608
criticalIn 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…
Vendor / product: Linux — linux kernel
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.
CVSS
9.8
9.8 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Severity source: NVD CVSS v3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
Timeline (UTC)
Published: 2026-04-24 15:16
Modified: 2026-11-11 23:10
NVD status: Analyzed
Last synced 3 hours ago
Verified against the source API 2026-11-11 23:12 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
linux / linux_kernel <6.18.24, ≥6.19 <6.19.14, ≥7.0 <7.0.1
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Patch / mitigation: https://git.kernel.org/stable/c/2ba03f46132b0d1a7bafb86e1ef61951a2254023
Patch / mitigation: https://git.kernel.org/stable/c/6968c91fab05b8fc4d6700e0cf34472bb422df25
Patch / mitigation: https://git.kernel.org/stable/c/830de6eeb9db4cb7e758201fb99328ef4ca4b032
Patch / mitigation: https://git.kernel.org/stable/c/84ff995ae826aa6bbcc6c7b9ea569ff67c021d72
References
- https://git.kernel.org/stable/c/2ba03f46132b0d1a7bafb86e1ef61951a2254023 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- https://git.kernel.org/stable/c/6968c91fab05b8fc4d6700e0cf34472bb422df25 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- https://git.kernel.org/stable/c/830de6eeb9db4cb7e758201fb99328ef4ca4b032 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- https://git.kernel.org/stable/c/84ff995ae826aa6bbcc6c7b9ea569ff67c021d72 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Data sources
NVD CVE API 2.0 — fetched 2026-11-11 23:12 UTC · record ↗