CVE-2026-98218
i2c: atr: fix dangling adapter pointer on add failure
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Oct 6, 2026 |
Stay Ahead of the Next One
Get instant alerts for linux linux
Be the first to know when new unknown vulnerabilities affecting linux linux are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
Affected Versions
Linux / Linux
a076a860acae77bbdcbd316541e5552e81fb1772 < 2f5e42edbd232bf705dc5d3a91e06344237e63bb a076a860acae77bbdcbd316541e5552e81fb1772 < 1093835f6aef58a831298d93e0d93f244fa07b84 a076a860acae77bbdcbd316541e5552e81fb1772 < eabf7a3d33cd9fad106d267d00cc842434de8e02 a076a860acae77bbdcbd316541e5552e81fb1772 < a57d9592714506556e30188af72dd3bdb9f647b5 a076a860acae77bbdcbd316541e5552e81fb1772 < ad34235808b63a70ca4989b7a2852923193d06ef
Linux / Linux
6.6
References
git.kernel.org: https://git.kernel.org/stable/c/2f5e42edbd232bf705dc5d3a91e06344237e63bb git.kernel.org: https://git.kernel.org/stable/c/1093835f6aef58a831298d93e0d93f244fa07b84 git.kernel.org: https://git.kernel.org/stable/c/eabf7a3d33cd9fad106d267d00cc842434de8e02 git.kernel.org: https://git.kernel.org/stable/c/a57d9592714506556e30188af72dd3bdb9f647b5 git.kernel.org: https://git.kernel.org/stable/c/ad34235808b63a70ca4989b7a2852923193d06ef