CVE-2024-43839: bna: adjust 'name' buf size of bna_tcb and bna_ccb structures
First published: Sat Aug 17 2024(Updated: )
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.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | >=2.6.37<6.1.103 | |
| Linux Linux kernel | >=6.2<6.6.44 | |
| Linux Linux kernel | >=6.7<6.10.3 | |
| debian/linux | <=5.10.223-1 | 5.10.226-1 6.1.115-1 6.1.119-1 6.12.5-1 6.12.6-1 |
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Reference Links
- https://git.kernel.org/stable/c/f121740f69eda4da2de9a20a6687a13593e72540
- https://git.kernel.org/stable/c/c90b1cd7758fd4839909e838ae195d19f8065d76
- https://git.kernel.org/stable/c/6ce46045f9b90d952602e2c0b8886cfadf860bf1
- https://git.kernel.org/stable/c/6d20c4044ab4d0e6a99aa35853e66f0aed5589e3
- 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
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-43839
- https://nvd.nist.gov/vuln/detail/CVE-2024-43839
- https://launchpad.net/bugs/cve/CVE-2024-43839
- https://security-tracker.debian.org/tracker/CVE-2024-43839
- https://ubuntu.com/security/CVE-2024-43839
- https://git.kernel.org/linus/c9741a03dc8e491e57b95fba0058ab46b7e506da
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