CVE-2023-54186

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Source
https://cve.org/CVERecord?id=CVE-2023-54186
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-54186.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2023-54186
Downstream
Related
Published
2025-12-30T12:08:55.882Z
Modified
2026-03-11T07:50:36.246293Z
Summary
usb: typec: altmodes/displayport: fix pin_assignment_show
Details

In the Linux kernel, the following vulnerability has been resolved:

usb: typec: altmodes/displayport: fix pinassignmentshow

This patch fixes negative indexing of buf array in pinassignmentshow when getcurrentpin_assignments returns 0 i.e. no compatible pin assignments are found.

BUG: KASAN: use-after-free in pinassignmentshow+0x26c/0x33c ... Call trace: dumpbacktrace+0x110/0x204 dumpstacklvl+0x84/0xbc printreport+0x358/0x974 kasan_report+0x9c/0xfc _dokernelfault+0xd4/0x2d4 dobadarea+0x48/0x168 dotagcheckfault+0x24/0x38 domemabort+0x6c/0x14c el1abort+0x44/0x68 el1h64synchandler+0x64/0xa4 el1h64sync+0x78/0x7c pinassignmentshow+0x26c/0x33c devattrshow+0x50/0xc0

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54186.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
0e3bb7d6894d9b6e67d6382bb03a46a1dc989588
Fixed
0e61a7432fcd4bca06f05b7f1c7d7cb461880fe2
Fixed
4f9c0a7c272626cb6716ffc7800e8c73260cdce6
Fixed
ff466f77d0a56719979c4234abd412abd98eae8f
Fixed
fc0e18f95c88435bd8a1ceb540243cd7fbcd9781
Fixed
08bd1be1c716fd50a7df48f82dcbc59a103082b5
Fixed
54ee23e4ab263a495ace1eed43d3883212ece17f
Fixed
d8f28269dd4bf9b55c3fb376ae31512730a96fce

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-54186.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
4.19.0
Fixed
4.19.284
Type
ECOSYSTEM
Events
Introduced
4.20.0
Fixed
5.4.244
Type
ECOSYSTEM
Events
Introduced
5.5.0
Fixed
5.10.181
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.113
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.30
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.3.4

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-54186.json"