Description
In the Linux kernel, the following vulnerability has been resolved:
crypto: qcom-rng - fix infinite loop on requests not multiple of WORD_SZ
The commit referenced in the Fixes tag removed the 'break' from the else branch in qcom_rng_read(), causing an infinite loop whenever 'max' is not a multiple of WORD_SZ. This can be reproduced e.g. by running:
kcapi-rng -b 67 >/dev/null
There are many ways to fix this without adding back the 'break', but they all seem more awkward than simply adding it back, so do just that.
Tested on a machine with Qualcomm Amberwing processor.
Metrics
CVSS 3.1 5.5/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= a8e32bbb96c25b7ab29b1894dcd45e0b3b08fd9d, < 71a89789552b7faf3ef27969b9bc783fa0df3550; >= 184f7bd08ce56f003530fc19f160d54e75bf5c9d, < 8be06f62b426801dba43ddf8893952a0e62ab6ae; >= 0f9b7b8df17525e464294c916acc8194ce38446b, < 233a3cc60e7a8fe0be8cf9934ae7b67ba25a866c; >= ab9337c7cb6f875b6286440b1adfbeeef2b2b2bd, < 8a06f25f5941c145773204f2f7abef95b4ffb8ce; >= a680b1832ced3b5fa7c93484248fd221ea0d614b, < 05d4d17475d8d094c519bb51658bc47899c175e3; >= a680b1832ced3b5fa7c93484248fd221ea0d614b, < 16287397ec5c08aa58db6acf7dbc55470d78087d; 485995cbc98a4f77cfd4f8ed4dd7ff8ab262964d; >= 4.19.236, < 4.19.245; >= 5.4.187, < 5.4.196; >= 5.10.108, < 5.10.118; >= 5.15.31, < 5.15.42; >= 5.16.17, < 5.17 |
| Linux | Linux | 5.17 |
References
- https://git.kernel.org/stable/c/05d4d17475d8d094c519bb51658bc47899c175e3Patch
- https://git.kernel.org/stable/c/16287397ec5c08aa58db6acf7dbc55470d78087dPatch
- https://git.kernel.org/stable/c/233a3cc60e7a8fe0be8cf9934ae7b67ba25a866cPatch
- https://git.kernel.org/stable/c/71a89789552b7faf3ef27969b9bc783fa0df3550Patch
- https://git.kernel.org/stable/c/8a06f25f5941c145773204f2f7abef95b4ffb8cePatch
- https://git.kernel.org/stable/c/8be06f62b426801dba43ddf8893952a0e62ab6aePatch
- https://git.kernel.org/stable/c/05d4d17475d8d094c519bb51658bc47899c175e3Patch
- https://git.kernel.org/stable/c/16287397ec5c08aa58db6acf7dbc55470d78087dPatch
- https://git.kernel.org/stable/c/233a3cc60e7a8fe0be8cf9934ae7b67ba25a866cPatch
- https://git.kernel.org/stable/c/71a89789552b7faf3ef27969b9bc783fa0df3550Patch
- https://git.kernel.org/stable/c/8a06f25f5941c145773204f2f7abef95b4ffb8cePatch
- https://git.kernel.org/stable/c/8be06f62b426801dba43ddf8893952a0e62ab6aePatch
Timeline
- Published
- Mar 5, 2024
- Last modified
- Jun 17, 2026
- NVD status
- Analyzed