What’s Vulnerable › Vulnerabilities

CVE-2026-72479: iio: accel: mma8452: handle I2C read error(s) in mma8452_read()

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-15 · updated 2026-08-17

Description

In the Linux kernel, the following vulnerability has been resolved: iio: accel: mma8452: handle I2C read error(s) in mma8452_read() Currently, If i2c_smbus_read_i2c_block_data() fails but mma8452_set_runtime_pm_state() succeeds, mma8452_read() returns 0. As a result, the caller mma8452_read_raw() assumes the read was successful and proceeds to use a buffer containing uninitialized stack memory. Add proper checking of the I2C read return value and propagate errors to the caller.

Affected products

• Linux kernel: 4.7 — fixed in 7.2

How to fix

Upgrade to a fixed version: Linux kernel 7.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/1cddef80a180af74c33d2f26c962ce92b60fded4
• https://git.kernel.org/stable/c/5bdff291d20c31b365d9ddfe9c426fbfb41da5bb
• https://git.kernel.org/stable/c/b488055e81d9faaaf2f8aaff45f9944040ac4493
• https://git.kernel.org/stable/c/b4932fc325e84a3233413daf230b043818c8a824
• https://git.kernel.org/stable/c/eed69f8a10b82989ad732ace0fb43a9fb4e7fe35
• https://git.kernel.org/stable/c/f3d413e701c5e54bef736b638967724dda880365
• https://git.kernel.org/stable/c/f3d905ea1e4996d933074481e80d96ecd74a9904
• https://git.kernel.org/stable/c/f9ec3f3e9cf27dd06cd3725eeaa44e3ce46be893

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