CVEvulnerability
CVE-2023-52615
5.5 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2024-03-18
- Last modified
- 2026-06-17
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 ([email protected])
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-667
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.
Affected configurations
• linux linux kernel (>= 2.6.33 < 4.19.307)
• linux linux kernel (>= 4.20 < 5.4.269)
• linux linux kernel (>= 5.5 < 5.10.210)
• linux linux kernel (>= 5.11 < 5.15.149)
• linux linux kernel (>= 5.16 < 6.1.76)
• linux linux kernel (>= 6.2 < 6.6.15)
• linux linux kernel (>= 6.7 < 6.7.3)
Related
Weakness · CWE (1)
- CWE-667 Improper Locking weakness
References
- https://git.kernel.org/stable/c/26cc6d7006f922df6cc4389248032d955750b2a0 Patch
- https://git.kernel.org/stable/c/5030d4c798863ccb266563201b341a099e8cdd48 Patch
- https://git.kernel.org/stable/c/6822a14271786150e178869f1495cc03e74c5029 Patch
- https://git.kernel.org/stable/c/78aafb3884f6bc6636efcc1760c891c8500b9922 Patch
- https://git.kernel.org/stable/c/aa8aa16ed9adf1df05bb339d588cf485a011839e Patch
- https://git.kernel.org/stable/c/c6a8111aacbfe7a8a70f46cc0de8eed00561693c Patch
- https://git.kernel.org/stable/c/eafd83b92f6c044007a3591cbd476bcf90455990 Patch
- https://git.kernel.org/stable/c/ecabe8cd456d3bf81e92c53b074732f3140f170d Patch
- https://git.kernel.org/stable/c/26cc6d7006f922df6cc4389248032d955750b2a0 Patch
- https://git.kernel.org/stable/c/5030d4c798863ccb266563201b341a099e8cdd48 Patch
- https://git.kernel.org/stable/c/6822a14271786150e178869f1495cc03e74c5029 Patch
- https://git.kernel.org/stable/c/78aafb3884f6bc6636efcc1760c891c8500b9922 Patch
- https://git.kernel.org/stable/c/aa8aa16ed9adf1df05bb339d588cf485a011839e Patch
- https://git.kernel.org/stable/c/c6a8111aacbfe7a8a70f46cc0de8eed00561693c Patch
- https://git.kernel.org/stable/c/eafd83b92f6c044007a3591cbd476bcf90455990 Patch
- https://git.kernel.org/stable/c/ecabe8cd456d3bf81e92c53b074732f3140f170d Patch
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html Patch
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html Patch