CVE-2021-47153

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: i2c: i801: Don't generate an interrupt on bus reset Now that the i2c-i801 driver supports interrupts, setting the KILL bit in a attempt to recover from a timed out transaction triggers an interrupt. Unfortunately, the interrupt handler (i801_isr) is not prepared for this situation and will try to process the interrupt as if it was signaling the end of a successful transaction. In the case of a block transaction, this can result in an out-of-range memory access. This condition was reproduced several times by syzbot: https://...

Affected product and versions

Product

Linux Linux, linux kernel

Affected versions

>= 636752bcb5177a301d0266270661581de8624828 < f9469082126cebb7337db3992d143f5e4edfe629, >= 636752bcb5177a301d0266270661581de8624828 < 09c9e79f4c10cfb6b9e0e1b4dd355232e4b5a3b3, >= 636752bcb5177a301d0266270661581de8624828 < dfa8929e117b0228a7765f5c3f5988a4a028f3c6, >= 636752bcb5177a301d0266270661581de8624828 < c70e1ba2e7e65255a0ce004f531dd90dada97a8c, >= 636752bcb5177a301d0266270661581de8624828 < 04cc05e3716ae31b17ecdab7bc55c8170def1b8b, >= 636752bcb5177a301d0266270661581de8624828 < b523feb7e8e44652f92f3babb953a976e7ccbbef, >= 636752bcb5177a301d0266270661581de8624828 < 1f583d3813f204449037cd2acbfc09168171362a, >= 636752bcb5177a301d0266270661581de8624828 < e4d8716c3dcec47f1557024add24e1f3c09eb24b, >= 3.6, >= 3.6 < 4.4.271, >= 4.5 < 4.9.271, >= 4.10 < 4.14.235, >= 4.15 < 4.19.193, >= 4.20 < 5.4.124, >= 5.5 < 5.10.42, >= 5.11 < 5.12.9, 5.13

Fixed versions

4.4.271, 4.9.271, 4.14.235, 4.19.193, 5.4.124, 5.10.42, 5.12.9

Technical data

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

CWE

CWE-125