CVE-2026-31608
smb: server: avoid double-free in smb_direct_free_sendmsg after smb_direct_flush_send_list()
CVSS Score
9.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Apr 24, 2026 |
| Last Updated | May 23, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Linux / Linux
5ef18a2e66f2f33fdac64437bddfb9fe6389fdc7 < 6968c91fab05b8fc4d6700e0cf34472bb422df25 79242e7b6bc63efec28b7c235bc320806afce6c0 < 2ba03f46132b0d1a7bafb86e1ef61951a2254023 34abd408c8ba24d7c97bd02ba874d8c714f49db1 < 830de6eeb9db4cb7e758201fb99328ef4ca4b032 34abd408c8ba24d7c97bd02ba874d8c714f49db1 < 84ff995ae826aa6bbcc6c7b9ea569ff67c021d72 6.18.11 < 6.18.24 6.19.1 < 6.19.14
Linux / Linux
7.0
References
git.kernel.org: https://git.kernel.org/stable/c/6968c91fab05b8fc4d6700e0cf34472bb422df25 git.kernel.org: https://git.kernel.org/stable/c/2ba03f46132b0d1a7bafb86e1ef61951a2254023 git.kernel.org: https://git.kernel.org/stable/c/830de6eeb9db4cb7e758201fb99328ef4ca4b032 git.kernel.org: https://git.kernel.org/stable/c/84ff995ae826aa6bbcc6c7b9ea569ff67c021d72