CVE-2026-98218
i2c: atr: fix dangling adapter pointer on add failure
No known exploitation. EPSS puts it in the 7th percentile. Fixed versions are out.
What to do
Find your product and version, then upgrade to the build on the right.
- LinuxAffected: ≥ a076a860acae77bbdcbd316541e5552e81fb1772, < 2f5e42edbd232bf705dc5d3a91e06344237e63bbUpgrade to: 2f5e42edbd232bf705dc5d3a91e06344237e63bbAffected: ≥ a076a860acae77bbdcbd316541e5552e81fb1772, < 1093835f6aef58a831298d93e0d93f244fa07b84Upgrade to: 1093835f6aef58a831298d93e0d93f244fa07b84Affected: ≥ a076a860acae77bbdcbd316541e5552e81fb1772, < eabf7a3d33cd9fad106d267d00cc842434de8e02Upgrade to: eabf7a3d33cd9fad106d267d00cc842434de8e02Affected: ≥ a076a860acae77bbdcbd316541e5552e81fb1772, < a57d9592714506556e30188af72dd3bdb9f647b5Upgrade to: a57d9592714506556e30188af72dd3bdb9f647b5 + 1 more branchStated by: CVE record
Versions as the sources state them. Full version matrix after sign-in
What it is
From the CVE record
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.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
0.2% chance of exploitation activity in the next 30 days, which ranks it in the 7th percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
2 events over 0 days, from the signal feeds we watch.
- Publishedrecord updated
Affected products
Sources
References in the record
- git.kernel.org/stable/c/2f5e42edbd232bf705dc5d3a91e06344237e63bb
- git.kernel.org/stable/c/1093835f6aef58a831298d93e0d93f244fa07b84
- git.kernel.org/stable/c/eabf7a3d33cd9fad106d267d00cc842434de8e02
And 2 more references. See all after sign-in
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