CVEvulnerability
CVE-2026-98808
- Status
- Received
- Published
- 2026-10-18
- Last modified
- 2026-10-21
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Description
In the Linux kernel, the following vulnerability has been resolved:
net: systemport: Fix buffer overflow in bcm_sysport_get_stats()
When running on SYSTEMPORT Lite, certain statistics are unsupported and
skipped during bcm_sysport_get_stats(). The variable 'j' tracks the
compacted index into the destination data buffer, whereas 'i' iterates
over all elements in bcm_sysport_gstrings_stats.
Because the buffer allocated by ethtool is sized only according to
bcm_sysport_get_sset_count(), storing values at data[i] instead of
data[j] writes past the allocated array bounds, leading to memory
corruption.
Fix this by writing to data[j] instead of data[i].
References
- https://git.kernel.org/stable/c/29d1d35ad5ad379a904263ea1cd4ba1d71cd965f git.kernel.org
- https://git.kernel.org/stable/c/96a2b042051553df0d9f03b518dd3b7105b36935 git.kernel.org
- https://git.kernel.org/stable/c/96d8b26be5bc451188acdcee055948da45adbde0 git.kernel.org
- https://git.kernel.org/stable/c/eb7b84af0ec5c71b4920e999611b466b3784496c git.kernel.org
- https://git.kernel.org/stable/c/faba9fdde480356f4a1d3b1a5713b7b354858a1c git.kernel.org