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CVE-2026-98218

Unknown

Last modified

CVE-2026-98218 is a vulnerability of currently unknown severity. In the Linux kernel, the following vulnerability has been resolved: i2c: atr: fix dangling adapter pointer on add failure i2c_atr_add_adapter() stores atr->adapter[chan_id] before i2c_add_adapter() so that the I2C bus notifier can match child clients during registration. On failure the channel is freed but the slot was left pointing at freed memory, which can lead to use-after-free in i2c_atr_del_adapter() / cleanup and also block reuse with -EEXIST. Clear the slot on the i2c_add_adapter() error path before freeing chan..

Description

In the Linux kernel, the following vulnerability has been resolved: i2c: atr: fix dangling adapter pointer on add failure i2c_atr_add_adapter() stores atr->adapter[chan_id] before i2c_add_adapter() so that the I2C bus notifier can match child clients during registration. On failure the channel is freed but the slot was left pointing at freed memory, which can lead to use-after-free in i2c_atr_del_adapter() / cleanup and also block reuse with -EEXIST. Clear the slot on the i2c_add_adapter() error path before freeing chan.

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= a076a860acae77bbdcbd316541e5552e81fb1772, < 2f5e42edbd232bf705dc5d3a91e06344237e63bb; >= a076a860acae77bbdcbd316541e5552e81fb1772, < 1093835f6aef58a831298d93e0d93f244fa07b84; >= a076a860acae77bbdcbd316541e5552e81fb1772, < eabf7a3d33cd9fad106d267d00cc842434de8e02; >= a076a860acae77bbdcbd316541e5552e81fb1772, < a57d9592714506556e30188af72dd3bdb9f647b5; >= a076a860acae77bbdcbd316541e5552e81fb1772, < ad34235808b63a70ca4989b7a2852923193d06ef
LinuxLinux6.6

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-98218?
In the Linux kernel, the following vulnerability has been resolved: i2c: atr: fix dangling adapter pointer on add failure i2c_atr_add_adapter() stores atr->adapter[chan_id] before i2c_add_adapter() so that the I2C bus notifier can match child clients during registration. On failure the channel is freed but the slot was left pointing at freed memory, which can lead to use-after-free in i2c_atr_del_adapter() / cleanup and also block reuse with -EEXIST. Clear the slot on the i2c_add_adapter() error path before freeing chan.
How severe is CVE-2026-98218?
Severity scoring for CVE-2026-98218 is pending analysis.
How do I fix CVE-2026-98218?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST