usb: typec: altmodes/displayport: fix pin_assignment_show

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2023-54186
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-12-30 13:16:06 UTC
Updated2026-08-04 11:16:35 UTC
DescriptionIn 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

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.001300000 probability, percentile 0.030450000 (date 2026-08-06)

VersionSourceTypeScoreSeverityVector
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 0e61a7432fcd4bca06f05b7f1c7d7cb461880fe2 git Not specified
CNA Linux Linux affected 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 4f9c0a7c272626cb6716ffc7800e8c73260cdce6 git Not specified
CNA Linux Linux affected 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 ff466f77d0a56719979c4234abd412abd98eae8f git Not specified
CNA Linux Linux affected 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 fc0e18f95c88435bd8a1ceb540243cd7fbcd9781 git Not specified
CNA Linux Linux affected 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 08bd1be1c716fd50a7df48f82dcbc59a103082b5 git Not specified
CNA Linux Linux affected 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 54ee23e4ab263a495ace1eed43d3883212ece17f git Not specified
CNA Linux Linux affected 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 d8f28269dd4bf9b55c3fb376ae31512730a96fce git Not specified
CNA Linux Linux affected 4.19 Not specified
CNA Linux Linux unaffected 4.19 semver Not specified
CNA Linux Linux unaffected 4.19.284 4.19.* semver Not specified
CNA Linux Linux unaffected 5.4.244 5.4.* semver Not specified
CNA Linux Linux unaffected 5.10.181 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.113 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.30 6.1.* semver Not specified
CNA Linux Linux unaffected 6.3.4 6.3.* semver Not specified
CNA Linux Linux unaffected 6.4 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/ff466f77d0a56719979c4234abd412abd98eae8f 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/d8f28269dd4bf9b55c3fb376ae31512730a96fce 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/08bd1be1c716fd50a7df48f82dcbc59a103082b5 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/4f9c0a7c272626cb6716ffc7800e8c73260cdce6 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/0e61a7432fcd4bca06f05b7f1c7d7cb461880fe2 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/54ee23e4ab263a495ace1eed43d3883212ece17f 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/fc0e18f95c88435bd8a1ceb540243cd7fbcd9781 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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