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CVE-2026-98668

iio: buffer: Ensure bounce buffer used for unaligned case is zeroed.

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 6.6.160, 6.12.113, 6.18.56, 7.2.10
None on Exploit-DB, Metasploit or GitHub

Summary

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.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • Linux Linux

    From 95ec3fdf2b79eaff79e78688bbc2f7dbb98d68b6 · fixed in b4f53cec8cc94b37601ce0bb2b272b6753beed98; From 95ec3fdf2b79eaff79e78688bbc2f7dbb98d68b6 · fixed in b5c2f21f645e40c70fda2a4283e6f2a81e5cb9f2; From 95ec3fdf2b79eaff79e78688bbc2f7dbb98d68b6 · fixed in b134ef820610bd873c9d59999d9824710964ce82; From 95ec3fdf2b79eaff79e78688bbc2f7dbb98d68b6 · fixed in 3a87212b1a09a1fdd730ce5520f7b1fc0b488511; From 95ec3fdf2b79eaff79e78688bbc2f7dbb98d68b6 · fixed in 5330036bc68d23672bfcc16c60c54701ae123083

  • Linux Linux

    5.16

  • KernelLinux

    From 5.16.0 · fixed in 6.6.160; From 6.7.0 · fixed in 6.12.113; From 6.13.0 · fixed in 6.18.56; From 6.19.0 · fixed in 7.2.10

References 5

git.kernel.org