CVE-2022-48630
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…
Does this matter?
Lower severity and a low EPSS score (0.23%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.23% probability · 14th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-835
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.