DEBIAN-CVE-2023-52895
Record from OSV · Published August 21, 2024
In the Linux kernel, the following vulnerability has been resolved: io_uring/poll: don't reissue in case of poll race on multishot request A previous commit fixed a poll race that can occur, but it's only applicable for multishot requests. For a multishot request, we can safely ignore a spurious wakeup, as we never leave the waitqueue to begin with. A blunt reissue of a multishot armed request can cause us to leak a buffer, if they are ring provided. While this seems like a bug in itself, it's not really defined behavior to reissue a multishot request directly. It's less efficient to do so as well, and not required to rearm anything like it is for singleshot poll requests.
Fixed versions
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| Package | Ecosystem | Fixed in |
|---|---|---|
| linux | Debian:12 | 6.1.8-1 |
| linux | Debian:13 | 6.1.8-1 |
| linux | Debian:14 | 6.1.8-1 |
Risk scores
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Debian:12 | linux | 0 |
| Debian:13 | linux | 0 |
| Debian:14 | linux | 0 |
Timeline
- Aug 21, 2024 CVE Published
- Oct 26, 2026 CVE Updated
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