5.5

CVE-2026-45865

mctp i2c: initialise event handler read bytes

In the Linux kernel, the following vulnerability has been resolved:

mctp i2c: initialise event handler read bytes

Set a 0xff value for i2c reads of an mctp-i2c device. Otherwise reads
will return "val" from the i2c bus driver. For i2c-aspeed and
i2c-npcm7xx that is a stack uninitialised u8.

Tested with "i2ctransfer -y 1 r10@0x34" where 0x34 is a mctp-i2c
instance, now it returns all 0xff.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.18 < 6.1.165
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.128
Linux ≫ Linux Kernel Version >= 6.7 < 6.12.75
Linux ≫ Linux Kernel Version >= 6.13 < 6.18.14
Linux ≫ Linux Kernel Version >= 6.19 < 6.19.4
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.16% 0.051
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
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/93e01e837e105299f1c259ef71f6e1ec4fe806e3
Patch
https://git.kernel.org/stable/c/11f83253244060b5de5eac787f61ae3f3e559d01
Patch
https://git.kernel.org/stable/c/fa9861e5c8af7651dddfa8d490aaada17ae33b6c
Patch
https://git.kernel.org/stable/c/6ff2ebfef75fbc57d937d8fbe738b967edf2d331
Patch
https://git.kernel.org/stable/c/1eeedb310229bfee9dd4d992e5bba33fe1378a8f
Patch
https://git.kernel.org/stable/c/2a14e91b6d76639dac70ea170f4384c1ee3cb48d
Patch