Vulnerability CVE-2024-43839
Published: 2024-08-17

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

bna: adjust 'name' buf size of bna_tcb and bna_ccb structures

To have enough space to write all possible sprintf() args. Currently
'name' size is 16, but the first '%s' specifier may already need at
least 16 characters, since 'bnad->netdev->name' is used there.

For '%d' specifiers, assume that they require:
* 1 char for 'tx_id + tx_info->tcb[i]->id' sum, BNAD_MAX_TXQ_PER_TX is 8
* 2 chars for 'rx_id + rx_info->rx_ctrl[i].ccb->id', BNAD_MAX_RXP_PER_RX
is 16

And replace sprintf with snprintf.

Detected using the static analysis tool - Svace.

 References:
https://git.kernel.org/stable/c/ab748dd10d8742561f2980fea08ffb4f0cacfdef
https://git.kernel.org/stable/c/b0ff0cd0847b03c0a0abe20cfa900eabcfcb9e43
https://git.kernel.org/stable/c/e0f48f51d55fb187400e9787192eda09fa200ff5
https://git.kernel.org/stable/c/c9741a03dc8e491e57b95fba0058ab46b7e506da
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