CVE-2026-98218

CVE-2026-98218: vulnerability in Linux

i2c: atr: fix dangling adapter pointer on add failure

Published

3Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackepss 0.2%
exploitation probability
0.2%top 94% of all CVEs
observed exploitation
nono source reports it
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 products
Linux · Linux
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References
https://git.kernel.org/stable/c/1093835f6aef58a831298d93e0d93f244fa07b84https://git.kernel.org/stable/c/2f5e42edbd232bf705dc5d3a91e06344237e63bbhttps://git.kernel.org/stable/c/a57d9592714506556e30188af72dd3bdb9f647b5https://git.kernel.org/stable/c/ad34235808b63a70ca4989b7a2852923193d06efhttps://git.kernel.org/stable/c/eabf7a3d33cd9fad106d267d00cc842434de8e02