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VulnerabilityPublished

CVE-2026-98860: Linux kernel · HID: bpf: cast size to ssize_t when checking hid_bpf_hw_request

Affects Linux kernelSource CVE Database V5

0

Not known to be exploited · fixed in f9f808227554b2c116fd07dd2328ecd74ea3f411 : 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 4% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in f9f808227554b2c116fd07dd2328ecd74ea3f411, 97be6396817bd3b11d06239010d27902940bfaa9, 8b85ef0f561039e249c3f883c5280a1449c6dbee +4

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 18 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
  • >=6.12.78 <6.12.113
  • >=6.18.20 <6.18.56
  • >=6.19.10 <6.20
Fixed in
  • f9f808227554b2c116fd07dd2328ecd74ea3f411
  • 97be6396817bd3b11d06239010d27902940bfaa9
  • 8b85ef0f561039e249c3f883c5280a1449c6dbee
  • 6.20
  • 6.18.56
  • 6.12.113
  • 3afefbfe55c2a8a0c4bdf6f4cc1f773da120027c
LinuxLinuxAffected
  • =7.0
Fixed in–

AI-suggested

The issue is fixed in Linux kernel versions 6.12.113, 6.18.56, 6.20, and 7.0, as well as specific commits identified by their hashes. Users and administrators should upgrade to these fixed versions to remediate the vulnerability.

Description

A vulnerability in the Linux kernel's HID subsystem involving BPF programs was fixed by properly casting size to ssize_t when checking hid_bpf_hw_request. The flaw caused negative hardware error codes to be misinterpreted as large positive values, leading to incorrect success returns and potentially allowing BPF programs to operate on uninitialized or stale data.

References

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