CVE-2026-31537
N/A
N/A
Summary
In the Linux kernel, the following vulnerability has been resolved:
smb: server: make use of smbdirect_socket.send_io.bcredits
It turns out that our code will corrupt the stream of reassabled data transfer messages when we trigger an immendiate (empty) send.
In order to fix this we'll have a single 'batch' credit per connection. And code getting that credit is free to use as much messages until remaining_length reaches 0, then the batch credit it given back and the next logical send can happen.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 0626e6641f6b467447c81dd7678a69c66f7746cf < 5ef18a2e66f2f33fdac64437bddfb9fe6389fdc7 | affected |
| Linux | Linux | 0626e6641f6b467447c81dd7678a69c66f7746cf < 79242e7b6bc63efec28b7c235bc320806afce6c0 | affected |
| Linux | Linux | 0626e6641f6b467447c81dd7678a69c66f7746cf < 34abd408c8ba24d7c97bd02ba874d8c714f49db1 | 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/5ef18a2e66f2f33fdac64437bddfb9fe6389fdc7
- https://git.kernel.org/stable/c/79242e7b6bc63efec28b7c235bc320806afce6c0
- https://git.kernel.org/stable/c/34abd408c8ba24d7c97bd02ba874d8c714f49db1
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