ACK: [SRU][M][PATCH 0/1] CVE-2024-26593
Jacob Martin
jacob.martin at canonical.com
Tue Apr 9 13:19:35 UTC 2024
Acked-by: Jacob Martin <jacob.martin at canonical.com>
On 4/8/24 1:35 PM, Bethany Jamison wrote:
> [Impact]
>
> In the Linux kernel, the following vulnerability has been resolved:
>
> i2c: i801: Fix block process call transactions
>
> According to the Intel datasheets, software must reset the block
> buffer index twice for block process call transactions: once before
> writing the outgoing data to the buffer, and once again before
> reading the incoming data from the buffer.
>
> The driver is currently missing the second reset, causing the wrong
> portion of the block buffer to be read.
>
> [Fix]
>
> Mantic: Clean cherry-pick.
> Jammy: pending
> Focal: pending
> Bionic: not-affected
> Xenial: not-affected
> Trusty: not-affected
>
> [Test Case]
>
> Compile and boot tested.
>
> [Where problems could occur]
>
> This fix affects those using the i2c i801 driver, an issue with this
> fix would be visable via unexpected system behavior and potentially
> a crash. This fix has a low risk of regression as it is very
> simple and utilizes code sections that have already been developed.
>
> Jean Delvare (1):
> i2c: i801: Fix block process call transactions
>
> drivers/i2c/busses/i2c-i801.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
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