CVE-2026-98218: Linux kernel · i2c: atr: fix dangling adapter pointer on add failure
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in eabf7a3d33cd9fad106d267d00cc842434de8e02 : update Linux kernel when convenient.
Data as of 26 Oct 2026, 14:05 UTC
Rated Medium by Threat Radar's AI analysis · CVSS not yet scored by NVD
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 6% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in eabf7a3d33cd9fad106d267d00cc842434de8e02, ad34235808b63a70ca4989b7a2852923193d06ef, a57d9592714506556e30188af72dd3bdb9f647b5 +2
Exploitation evidence
Disclosed: evidence found.
CVE published 6 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in– |
AI-suggested
A fix is available and has been applied in the Linux kernel. Users and administrators should update to the fixed kernel versions identified by the commits listed in establishedFacts.fixedVersions to remediate this issue.
Description
A use-after-free vulnerability was identified and fixed in the Linux kernel's i2c atr driver. The issue occurs when i2c_atr_add_adapter() stores a pointer before i2c_add_adapter() completes, and on failure, the pointer remains dangling, leading to potential use-after-free in cleanup routines. This flaw could also block reuse of the adapter slot with an error. The fix clears the pointer slot on error before freeing the channel to prevent dangling references.
References
- git.kernel.org/stable/c/2f5e42edbd232bf705dc5d3a91e06344237e63bb (opens in a new tab)
- git.kernel.org/stable/c/1093835f6aef58a831298d93e0d93f244fa07b84 (opens in a new tab)
- git.kernel.org/stable/c/eabf7a3d33cd9fad106d267d00cc842434de8e02 (opens in a new tab)
- git.kernel.org/stable/c/a57d9592714506556e30188af72dd3bdb9f647b5 (opens in a new tab)
- git.kernel.org/stable/c/ad34235808b63a70ca4989b7a2852923193d06ef (opens in a new tab)