CVE-2026-98218
Description
AI Translation Available
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.
https://git.kernel.org/stable/c/1093835f6aef58a831298d93e0d93f244fa07b84
https://git.kernel.org/stable/c/2f5e42edbd232bf705dc5d3a91e06344237e63bb
https://git.kernel.org/stable/c/a57d9592714506556e30188af72dd3bdb9f647b5
https://git.kernel.org/stable/c/ad34235808b63a70ca4989b7a2852923193d06ef
https://git.kernel.org/stable/c/eabf7a3d33cd9fad106d267d00cc842434de8e02