CVE-2026-31536
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 0626e6641f6b467447c81dd7678a69c66f7746cf < 24082642654f3e5149913946e89c00a297a8868f | affected |
| Linux | Linux | 0626e6641f6b467447c81dd7678a69c66f7746cf < e38b415c024bc3b6321bf8650dbf3f4aab8e74b3 | affected |
| Linux | Linux | 0626e6641f6b467447c81dd7678a69c66f7746cf < 9da82dc73cb03e85d716a2609364572367a5ff47 | affected |
| Linux | Linux | 5.15 | affected |
| Linux | Linux | 0 < 5.15 | unaffected |
| Linux | Linux | 6.18.11 <= 6.18.* | unaffected |
| Linux | Linux | 6.19.1 <= 6.19.* | unaffected |
| Linux | Linux | 7.0 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/24082642654f3e5149913946e89c00a297a8868f
- https://git.kernel.org/stable/c/e38b415c024bc3b6321bf8650dbf3f4aab8e74b3
- https://git.kernel.org/stable/c/9da82dc73cb03e85d716a2609364572367a5ff47
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