Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected f5b8abf9fc3dacd7529d363e26fe8230935d65f8 before 93e01e837e105299f1c259ef71f6e1ec4fe806e3; affected f5b8abf9fc3dacd7529d363e26fe8230935d65f8 before 11f83253244060b5de5eac787f61ae3f3e559d01; affected f5b8abf9fc3dacd7529d363e26fe8230935d65f8 before fa9861e5c8af7651dddfa8d490aaada17ae33b6c; affected f5b8abf9fc3dacd7529d363e26fe8230935d65f8 before 6ff2ebfef75fbc57d937d8fbe738b967edf2d331; affected f5b8abf9fc3dacd7529d363e26fe8230935d65f8 before 1eeedb310229bfee9dd4d992e5bba33fe1378a8f; affected f5b8abf9fc3dacd7529d363e26fe8230935d65f8 before 2a14e91b6d76639dac70ea170f4384c1ee3cb48d |
| Linux / Linux | affected 5.18; unaffected 0 before 5.18; unaffected 6.1.165 through 6.1.*; unaffected 6.6.128 through 6.6.*; unaffected 6.12.75 through 6.12.*; unaffected 6.18.14 through 6.18.*; unaffected 6.19.4 through 6.19.*; unaffected 7.0 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/93e01e837e105299f1c259ef71f6e1ec4fe806e3
- https://git.kernel.org/stable/c/11f83253244060b5de5eac787f61ae3f3e559d01
- https://git.kernel.org/stable/c/fa9861e5c8af7651dddfa8d490aaada17ae33b6c
- https://git.kernel.org/stable/c/6ff2ebfef75fbc57d937d8fbe738b967edf2d331
- https://git.kernel.org/stable/c/1eeedb310229bfee9dd4d992e5bba33fe1378a8f
- https://git.kernel.org/stable/c/2a14e91b6d76639dac70ea170f4384c1ee3cb48d