CVE-2023-52615
Vulnerability Summary
Timeline
Description
In the Linux kernel, the following vulnerability has been resolved: hwrng: core - Fix page fault dead lock on mmap-ed hwrng There is a dead-lock in the hwrng device read path. This triggers when the user reads from /dev/hwrng into memory also mmap-ed from /dev/hwrng. The resulting page fault triggers a recursive read which then dead-locks. Fix this by using a stack buffer when calling copy_to_user.
CVSS Metrics
- v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS Trends
Current EPSS score: 0.01%• Percentile: 0%
Techniques & Countermeasures
- CWE-667•Improper Locking
The product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors.
Affected Systems
- linux•linux
≥ 9996508b3353063f2d6c48c1a28a84543d72d70b, < eafd83b92f6c044007a3591cbd476bcf90455990 | ≥ 9996508b3353063f2d6c48c1a28a84543d72d70b, < 5030d4c798863ccb266563201b341a099e8cdd48 | ≥ 9996508b3353063f2d6c48c1a28a84543d72d70b, < c6a8111aacbfe7a8a70f46cc0de8eed00561693c | ≥ 9996508b3353063f2d6c48c1a28a84543d72d70b, < 26cc6d7006f922df6cc4389248032d955750b2a0 | ≥ 9996508b3353063f2d6c48c1a28a84543d72d70b, < aa8aa16ed9adf1df05bb339d588cf485a011839e | ≥ 9996508b3353063f2d6c48c1a28a84543d72d70b, < ecabe8cd456d3bf81e92c53b074732f3140f170d | ≥ 9996508b3353063f2d6c48c1a28a84543d72d70b, < 6822a14271786150e178869f1495cc03e74c5029 | ≥ 9996508b3353063f2d6c48c1a28a84543d72d70b, < 78aafb3884f6bc6636efcc1760c891c8500b9922 | 2.6.33
- linux•linux_kernel
≥ 2.6.33, < 4.19.307 | ≥ 4.20, < 5.4.269 | ≥ 5.5, < 5.10.210 | ≥ 5.11, < 5.15.149 | ≥ 5.16, < 6.1.76 | ≥ 6.2, < 6.6.15 | ≥ 6.7, < 6.7.3
References (10)
- https://git.kernel.org/stable/c/eafd83b92f6c044007a3591cbd476bcf90455990
- https://git.kernel.org/stable/c/5030d4c798863ccb266563201b341a099e8cdd48
- https://git.kernel.org/stable/c/c6a8111aacbfe7a8a70f46cc0de8eed00561693c
- https://git.kernel.org/stable/c/26cc6d7006f922df6cc4389248032d955750b2a0
- https://git.kernel.org/stable/c/aa8aa16ed9adf1df05bb339d588cf485a011839e
- https://git.kernel.org/stable/c/ecabe8cd456d3bf81e92c53b074732f3140f170d
- https://git.kernel.org/stable/c/6822a14271786150e178869f1495cc03e74c5029
- https://git.kernel.org/stable/c/78aafb3884f6bc6636efcc1760c891c8500b9922
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html