CVE-2023-52615
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.
Does this matter?
Lower severity and a low EPSS score (0.19%). Track it; it rarely justifies an emergency change on its own.
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 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.19% probability · 9th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-667
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/26cc6d7006f922df6cc4389248032d955750b2a0Patch
- https://git.kernel.org/stable/c/5030d4c798863ccb266563201b341a099e8cdd48Patch
- https://git.kernel.org/stable/c/6822a14271786150e178869f1495cc03e74c5029Patch
- https://git.kernel.org/stable/c/78aafb3884f6bc6636efcc1760c891c8500b9922Patch
- https://git.kernel.org/stable/c/aa8aa16ed9adf1df05bb339d588cf485a011839ePatch
- https://git.kernel.org/stable/c/c6a8111aacbfe7a8a70f46cc0de8eed00561693cPatch
- https://git.kernel.org/stable/c/eafd83b92f6c044007a3591cbd476bcf90455990Patch
- https://git.kernel.org/stable/c/ecabe8cd456d3bf81e92c53b074732f3140f170dPatch
- https://git.kernel.org/stable/c/26cc6d7006f922df6cc4389248032d955750b2a0Patch
- https://git.kernel.org/stable/c/5030d4c798863ccb266563201b341a099e8cdd48Patch
- https://git.kernel.org/stable/c/6822a14271786150e178869f1495cc03e74c5029Patch
- https://git.kernel.org/stable/c/78aafb3884f6bc6636efcc1760c891c8500b9922Patch
- https://git.kernel.org/stable/c/aa8aa16ed9adf1df05bb339d588cf485a011839ePatch
- https://git.kernel.org/stable/c/c6a8111aacbfe7a8a70f46cc0de8eed00561693cPatch
- https://git.kernel.org/stable/c/eafd83b92f6c044007a3591cbd476bcf90455990Patch
- https://git.kernel.org/stable/c/ecabe8cd456d3bf81e92c53b074732f3140f170dPatch
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.htmlPatch
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.htmlPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.