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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
a076a860acae77bbdcbd316541e5552e81fb1772 to < 2f5e42edbd232bf705dc5d3a91e06344237e63bbaffecteda076a860acae77bbdcbd316541e5552e81fb1772 to < 1093835f6aef58a831298d93e0d93f244fa07b84affecteda076a860acae77bbdcbd316541e5552e81fb1772 to < eabf7a3d33cd9fad106d267d00cc842434de8e02affecteda076a860acae77bbdcbd316541e5552e81fb1772 to < a57d9592714506556e30188af72dd3bdb9f647b5affecteda076a860acae77bbdcbd316541e5552e81fb1772 to < ad34235808b63a70ca4989b7a2852923193d06efaffected
Linux Linux
Default version status: affected
6.6affected0 to < 6.6unaffected6.6.158 to ≤ 6.6.*unaffected6.12.112 to ≤ 6.12.*unaffected6.18.54 to ≤ 6.18.*unaffected7.2.8 to ≤ 7.2.*unaffected7.3 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/2f5e42edbd232bf705dc5d3a91e06344237e63bb ↗
- https://git.kernel.org/stable/c/1093835f6aef58a831298d93e0d93f244fa07b84 ↗
- https://git.kernel.org/stable/c/eabf7a3d33cd9fad106d267d00cc842434de8e02 ↗
- https://git.kernel.org/stable/c/a57d9592714506556e30188af72dd3bdb9f647b5 ↗
- https://git.kernel.org/stable/c/ad34235808b63a70ca4989b7a2852923193d06ef ↗