Description
In the Linux kernel, the following vulnerability has been resolved: platform/x86: panasonic-laptop: Fix SINF array out of bounds accesses The panasonic laptop code in various places uses the SINF array with index values of 0 - SINF_CUR_BRIGHT(0x0d) without checking that the SINF array is big enough. Not all panasonic laptops have this many SINF array entries, for example the Toughbook CF-18 model only has 10 SINF array entries. So it only supports the AC+DC brightness entries and mute. Check that the SINF array has a minimum size which covers all AC+DC brightness entries and refuse to load if the SINF array is smaller. For higher SINF indexes hide the sysfs attributes when the SINF array does not contain an entry for that attribute, avoiding show()/store() accessing the array out of bounds and add bounds checking to the probe() and resume() code accessing these.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
e424fb8cc4e6634c10f8159b1ff5618cf7bab9c6 to < b7c2f692307fe704be87ea80d7328782b33c3cefaffectede424fb8cc4e6634c10f8159b1ff5618cf7bab9c6 to < 9291fadbd2720a869b1d2fcf82305648e2e62a16affectede424fb8cc4e6634c10f8159b1ff5618cf7bab9c6 to < 6821a82616f60aa72c5909b3e252ad97fb9f7e2aaffectede424fb8cc4e6634c10f8159b1ff5618cf7bab9c6 to < b38c19783286a71693c2194ed1b36665168c09c4affectede424fb8cc4e6634c10f8159b1ff5618cf7bab9c6 to < f52e98d16e9bd7dd2b3aef8e38db5cbc9899d6a4affected
Linux Linux
Default version status: affected
3.3affected0 to < 3.3unaffected5.15.168 to ≤ 5.15.*unaffected6.1.111 to ≤ 6.1.*unaffected6.6.52 to ≤ 6.6.*unaffected6.10.11 to ≤ 6.10.*unaffected6.11 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/b7c2f692307fe704be87ea80d7328782b33c3cef ↗
- https://git.kernel.org/stable/c/9291fadbd2720a869b1d2fcf82305648e2e62a16 ↗
- https://git.kernel.org/stable/c/6821a82616f60aa72c5909b3e252ad97fb9f7e2a ↗
- https://git.kernel.org/stable/c/b38c19783286a71693c2194ed1b36665168c09c4 ↗
- https://git.kernel.org/stable/c/f52e98d16e9bd7dd2b3aef8e38db5cbc9899d6a4 ↗
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html ↗