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.
Products affected by CVE-2022-48630
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:5.18:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:5.18:rc7:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:5.18:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:5.18:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:5.18:rc4:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:5.18:rc5:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:5.18:rc6:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:5.18:rc9:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-48630
0.01%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-48630
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST | 2025-02-03 |
|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
N/A
|
N/A
|
RedHat-CVE-2022-48630 | 2024-03-05 |
CWE ids for CVE-2022-48630
-
The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.Assigned by: nvd@nist.gov (Primary)
References for CVE-2022-48630
-
https://git.kernel.org/stable/c/8be06f62b426801dba43ddf8893952a0e62ab6ae
crypto: qcom-rng - fix infinite loop on requests not multiple of WORD_SZ - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/233a3cc60e7a8fe0be8cf9934ae7b67ba25a866c
crypto: qcom-rng - fix infinite loop on requests not multiple of WORD_SZ - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/71a89789552b7faf3ef27969b9bc783fa0df3550
crypto: qcom-rng - fix infinite loop on requests not multiple of WORD_SZ - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/16287397ec5c08aa58db6acf7dbc55470d78087d
crypto: qcom-rng - fix infinite loop on requests not multiple of WORD_SZ - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/05d4d17475d8d094c519bb51658bc47899c175e3
crypto: qcom-rng - fix infinite loop on requests not multiple of WORD_SZ - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/8a06f25f5941c145773204f2f7abef95b4ffb8ce
crypto: qcom-rng - fix infinite loop on requests not multiple of WORD_SZ - kernel/git/stable/linux.git - Linux kernel stable treePatch
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