CVE-2026-31536
smb: server: let send_done handle a completion without IB_SEND_SIGNALED
CVSS Score
9.8
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: smb: server: let send_done handle a completion without IB_SEND_SIGNALED With smbdirect_send_batch processing we likely have requests without IB_SEND_SIGNALED, which will be destroyed in the final request that has IB_SEND_SIGNALED set. If the connection is broken all requests are signaled even without explicit IB_SEND_SIGNALED.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Apr 24, 2026 |
| Last Updated | May 11, 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
0626e6641f6b467447c81dd7678a69c66f7746cf < 24082642654f3e5149913946e89c00a297a8868f 0626e6641f6b467447c81dd7678a69c66f7746cf < e38b415c024bc3b6321bf8650dbf3f4aab8e74b3 0626e6641f6b467447c81dd7678a69c66f7746cf < 9da82dc73cb03e85d716a2609364572367a5ff47
Linux / Linux
5.15