CVE-2026-90369

CVE-2026-90369

published September 17, 2026

CVSS
—
EPSS
0%
Percentile
9.0
In the wild
Unconfirmed
What it is

In the Linux kernel, the following vulnerability has been resolved:

wifi: mt76: fix out-of-bounds access in mmio copy helpers

mt76_mmio_write_copy() and mt76_mmio_read_copy() iterate up to

ALIGN(len, 4), so a length that is not a multiple of four reads past the

source buffer (write_copy) or writes past the destination (read_copy).

Copy the aligned body in the loop and handle the remaining tail through a

4-byte bounce buffer, keeping the register access width unchanged.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00198 · 9.0th percentile
Published
2026-09-17T21:17Z
References (2)
EPSS history
Timeline
  • 19 SEP 03:55Z
    EPSS moved — → 0%
    epss
  • 17 SEP 16:09Z
    wifi: mt76: fix out-of-bounds access in mmio copy helpers
    cvelistv5