CVE-2026-98668

Published: October 21, 2026Last modified: November 3, 2026

Description

In the Linux kernel, the following vulnerability has been resolved: iio: buffer: Ensure bounce buffer used for unaligned case is zeroed. iio_push_to_buffers_with_ts_unaligned() leaks uninitialized heap memory to userspace if the data passed in is not a multiple of 8 bytes and the timestamp is enabled. Specify __GFP_ZERO for the devm_krealloc() to ensure any extra space is cleared.

Status

References

• https://git.kernel.org/stable/c/3a87212b1a09a1fdd730ce5520f7b1fc0b488511
• https://git.kernel.org/stable/c/5330036bc68d23672bfcc16c60c54701ae123083
• https://git.kernel.org/stable/c/b134ef820610bd873c9d59999d9824710964ce82
• https://git.kernel.org/stable/c/b4f53cec8cc94b37601ce0bb2b272b6753beed98
• https://git.kernel.org/stable/c/b5c2f21f645e40c70fda2a4283e6f2a81e5cb9f2
• https://git.kernel.org/stable/c/b953b8d5e6f2d53e81faa0f3b42856cdf16fe563