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  4. CVE 2023 54186 usb typec altmodesdisplayport fix
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Back to active CVEs
High · CVSS 7.8CVE-2023-54186

usb: typec: altmodes/displayport: fix pin_assignment_showCVE-2023-54186

Answer in brief

CVE-2023-54186 records a High severity (CVSS 7.8) vulnerability in usb: typec: altmodes/displayport: fix pin_assignment_show. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Dec 30, 2025Updated Aug 5, 2026Source checked Nov 3, 2026First seen by HOL Aug 5, 2026Material review Aug 5, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 7.8
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Linux/Linuxgeneric>=0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 <0e61a7432fcd4bca06f05b7f1c7d7cb461880fe2 || >=0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 <4f9c0a7c272626cb6716ffc7800e8c73260cdce6 || >=0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 <ff466f77d0a56719979c4234abd412abd98eae8f || >=0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 <fc0e18f95c88435bd8a1ceb540243cd7fbcd9781 || >=0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 <08bd1be1c716fd50a7df48f82dcbc59a103082b5 || >=0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 <54ee23e4ab263a495ace1eed43d3883212ece17f || >=0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 <d8f28269dd4bf9b55c3fb376ae31512730a96fce0e61a7432fcd4bca06f05b7f1c7d7cb461880fe2, 4f9c0a7c272626cb6716ffc7800e8c73260cdce6, ff466f77d0a56719979c4234abd412abd98eae8f, fc0e18f95c88435bd8a1ceb540243cd7fbcd9781, 08bd1be1c716fd50a7df48f82dcbc59a103082b5, 54ee23e4ab263a495ace1eed43d3883212ece17f, d8f28269dd4bf9b55c3fb376ae31512730a96fce
Linux/Linuxgeneric4.19Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
  2. 2Review the reported fix. Update Linux/Linux to 0e61a7432fcd4bca06f05b7f1c7d7cb461880fe2 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Dec 30, 2025

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Aug 5, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Aug 5, 2026

Sources and claim methodology

  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
Upstream source description

In the Linux kernel, the following vulnerability has been resolved: usb: typec: altmodes/displayport: fix pin_assignment_show This patch fixes negative indexing of buf array in pin_assignment_show when get_current_pin_assignments returns 0 i.e. no compatible pin assignments are found. BUG: KASAN: use-after-free in pin_assignment_show+0x26c/0x33c ... Call trace: dump_backtrace+0x110/0x204 dump_stack_lvl+0x84/0xbc print_report+0x358/0x974 kasan_report+0x9c/0xfc __do_kernel_fault+0xd4/0x2d4 do_bad_area+0x48/0x168 do_tag_check_fault+0x24/0x38 do_mem_abort+0x6c/0x14c el1_abort+0x44/0x68 el1h_64_sync_handler+0x64/0xa4 el1h_64_sync+0x78/0x7c pin_assignment_show+0x26c/0x33c dev_attr_show+0x50/0xc0

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
Not reported
Source
CVE List V5
Source checked
Nov 3, 2026
References
7 linked sources
Open source record