5.5

CVE-2023-52615

hwrng: core - Fix page fault dead lock on mmap-ed hwrng

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 2.6.33 < 4.19.307
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.269
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.210
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.149
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.76
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.15
Linux ≫ Linux Kernel Version >= 6.7 < 6.7.3
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.2% 0.092
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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.

https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
Patch
https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
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