CVE-2026-98218
Unknown
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.
SeverityUnknown
CVSS—
Exploit probability6. percentile0.2%
Product
Linux
PublishedOct 6, 2026
First seenOct 6, 2026
How to fix
Update
- Linux Linux2f5e42edbd232bf705dc5d3a91e06344237e63bb, 1093835f6aef58a831298d93e0d93f244fa07b84, eabf7a3d33cd9fad106d267d00cc842434de8e02, a57d9592714506556e30188af72dd3bdb9f647b5, ad34235808b63a70ca4989b7a2852923193d06ef or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | a076a860acae77bbdcbd316541e5552e81fb1772 ≤ v < 2f5e42edbd232bf705dc5d3a91e06344237e63bb, a076a860acae77bbdcbd316541e5552e81fb1772 ≤ v < 1093835f6aef58a831298d93e0d93f244fa07b84, a076a860acae77bbdcbd316541e5552e81fb1772 ≤ v < eabf7a3d33cd9fad106d267d00cc842434de8e02, a076a860acae77bbdcbd316541e5552e81fb1772 ≤ v < a57d9592714506556e30188af72dd3bdb9f647b5, a076a860acae77bbdcbd316541e5552e81fb1772 ≤ v < ad34235808b63a70ca4989b7a2852923193d06ef, 6.6 | 2f5e42edbd232bf705dc5d3a91e06344237e63bb, 1093835f6aef58a831298d93e0d93f244fa07b84, eabf7a3d33cd9fad106d267d00cc842434de8e02, a57d9592714506556e30188af72dd3bdb9f647b5, ad34235808b63a70ca4989b7a2852923193d06ef |
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