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VulnerabilityPublished Updated

CVE-2026-98204: Linux kernel · Input: rmi_smbus – fix out-of-bounds read in rmi_smb_write_block()

Affects Linux kernelSource CVE Database V5

0

Not known to be exploited · fixed in e022538e13dd1c82af5ec25ac28f12ca0ab26160 : update Linux kernel when convenient.

Data as of 26 Oct 2026, 17:16 UTC

Severity
Medium

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 7% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in e022538e13dd1c82af5ec25ac28f12ca0ab26160, dc05ec97b8299e48e31367a9bc412c7e9c0e2b42, d01337c0892d1509500c727edf81380777c2dd0f +5

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 6 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ 82264d0cf7aef2247563c031ff2ab96579d5d0cc, < e022538e13dd1c82af5ec25ac28f12ca0ab26160
Fixed in
  • e022538e13dd1c82af5ec25ac28f12ca0ab26160
LinuxLinuxAffected
  • ≥ 82264d0cf7aef2247563c031ff2ab96579d5d0cc, < dc05ec97b8299e48e31367a9bc412c7e9c0e2b42
Fixed in
  • dc05ec97b8299e48e31367a9bc412c7e9c0e2b42
LinuxLinuxAffected
  • ≥ 82264d0cf7aef2247563c031ff2ab96579d5d0cc, < d01337c0892d1509500c727edf81380777c2dd0f
Fixed in
  • d01337c0892d1509500c727edf81380777c2dd0f
LinuxLinuxAffected
  • ≥ 82264d0cf7aef2247563c031ff2ab96579d5d0cc, < 51cfe54f815ae175c7d1126b983d4d7c89715004
Fixed in
  • 51cfe54f815ae175c7d1126b983d4d7c89715004
LinuxLinuxAffected
  • ≥ 82264d0cf7aef2247563c031ff2ab96579d5d0cc, < 50dd585bee7669eb165e5defcc35d17f3822cfbb
Fixed in
  • 50dd585bee7669eb165e5defcc35d17f3822cfbb
LinuxLinuxAffected
  • ≥ 82264d0cf7aef2247563c031ff2ab96579d5d0cc, < 29fbcf5834f0a7f74bfd017c07da2411b35a4e2a
Fixed in
  • 29fbcf5834f0a7f74bfd017c07da2411b35a4e2a

AI-suggested

A fix is available and has been applied in specific Linux kernel commits. Users and administrators should update their Linux kernel to a version that includes these fixes to remediate the vulnerability. Since this is a kernel-level issue, applying the official patch or upgrading to a fixed kernel release is the recommended mitigation.

Description

A vulnerability in the Linux kernel's rmi_smbus input driver causes an out-of-bounds read in the rmi_smb_write_block() function. The issue arises when writing SMBus blocks larger than 32 bytes, where the code incorrectly calculates the block length for chunked writes, leading to reading beyond the input buffer. This flaw has been fixed in specific Linux kernel commits.

References

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