Vulnerability Details 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 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 1.8%
CVSS Severity
CVSS v3 Score 5.5
References
- https://git.kernel.org/stable/c/05d4d17475d8d094c519bb51658bc47899c175e3
- https://git.kernel.org/stable/c/16287397ec5c08aa58db6acf7dbc55470d78087d
- https://git.kernel.org/stable/c/233a3cc60e7a8fe0be8cf9934ae7b67ba25a866c
- https://git.kernel.org/stable/c/71a89789552b7faf3ef27969b9bc783fa0df3550
- https://git.kernel.org/stable/c/8a06f25f5941c145773204f2f7abef95b4ffb8ce
- https://git.kernel.org/stable/c/8be06f62b426801dba43ddf8893952a0e62ab6ae
- https://git.kernel.org/stable/c/05d4d17475d8d094c519bb51658bc47899c175e3
- https://git.kernel.org/stable/c/16287397ec5c08aa58db6acf7dbc55470d78087d
- https://git.kernel.org/stable/c/233a3cc60e7a8fe0be8cf9934ae7b67ba25a866c
- https://git.kernel.org/stable/c/71a89789552b7faf3ef27969b9bc783fa0df3550
- https://git.kernel.org/stable/c/8a06f25f5941c145773204f2f7abef95b4ffb8ce
- https://git.kernel.org/stable/c/8be06f62b426801dba43ddf8893952a0e62ab6ae
Products affected by CVE-2022-48630
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cpe:2.3:o:linux:linux_kernel:4.19.236
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cpe:2.3:o:linux:linux_kernel:4.19.237
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cpe:2.3:o:linux:linux_kernel:4.19.238
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cpe:2.3:o:linux:linux_kernel:4.19.239
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cpe:2.3:o:linux:linux_kernel:4.19.240
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cpe:2.3:o:linux:linux_kernel:4.19.241
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cpe:2.3:o:linux:linux_kernel:4.19.242
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cpe:2.3:o:linux:linux_kernel:4.19.243
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cpe:2.3:o:linux:linux_kernel:4.19.244
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cpe:2.3:o:linux:linux_kernel:5.10.108
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cpe:2.3:o:linux:linux_kernel:5.10.109
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cpe:2.3:o:linux:linux_kernel:5.10.110
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cpe:2.3:o:linux:linux_kernel:5.10.111
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cpe:2.3:o:linux:linux_kernel:5.10.112
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cpe:2.3:o:linux:linux_kernel:5.10.113
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cpe:2.3:o:linux:linux_kernel:5.10.114
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cpe:2.3:o:linux:linux_kernel:5.10.115
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cpe:2.3:o:linux:linux_kernel:5.10.116
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cpe:2.3:o:linux:linux_kernel:5.10.117
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cpe:2.3:o:linux:linux_kernel:5.15.31
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cpe:2.3:o:linux:linux_kernel:5.15.32
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cpe:2.3:o:linux:linux_kernel:5.15.33
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cpe:2.3:o:linux:linux_kernel:5.15.34
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cpe:2.3:o:linux:linux_kernel:5.15.35
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cpe:2.3:o:linux:linux_kernel:5.15.36
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cpe:2.3:o:linux:linux_kernel:5.15.37
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cpe:2.3:o:linux:linux_kernel:5.15.38
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cpe:2.3:o:linux:linux_kernel:5.15.39
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cpe:2.3:o:linux:linux_kernel:5.15.40
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cpe:2.3:o:linux:linux_kernel:5.15.41
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cpe:2.3:o:linux:linux_kernel:5.17
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cpe:2.3:o:linux:linux_kernel:5.17.1
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cpe:2.3:o:linux:linux_kernel:5.17.2
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cpe:2.3:o:linux:linux_kernel:5.17.3
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cpe:2.3:o:linux:linux_kernel:5.17.4
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cpe:2.3:o:linux:linux_kernel:5.17.5
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cpe:2.3:o:linux:linux_kernel:5.17.6
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cpe:2.3:o:linux:linux_kernel:5.17.7
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cpe:2.3:o:linux:linux_kernel:5.17.8
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cpe:2.3:o:linux:linux_kernel:5.17.9
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cpe:2.3:o:linux:linux_kernel:5.18
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cpe:2.3:o:linux:linux_kernel:5.4.187
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cpe:2.3:o:linux:linux_kernel:5.4.188
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cpe:2.3:o:linux:linux_kernel:5.4.189
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cpe:2.3:o:linux:linux_kernel:5.4.190
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cpe:2.3:o:linux:linux_kernel:5.4.191
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cpe:2.3:o:linux:linux_kernel:5.4.192
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cpe:2.3:o:linux:linux_kernel:5.4.193
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cpe:2.3:o:linux:linux_kernel:5.4.194
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cpe:2.3:o:linux:linux_kernel:5.4.195