CVE-2023-54186 remediation guide
Linux
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_...
A verified fixed-version field is not available. Use the linked NVD and supporting references, then confirm the vendor-supported path before changing production systems.
Identify the affected asset
Confirm whether Linux is installed, record the deployed version and installation path, and identify exposed interfaces.
- Record the product name, package or appliance identifier, and installed version.
- Identify internet-facing, administrative, API, and internal access paths.
- Preserve the pre-change configuration and relevant service logs.
Validate the affected-version match
Compare the deployed version with the affected range: >= 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 < 0e61a7432fcd4bca06f05b7f1c7d7cb461880fe2, >= 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 < 4f9c0a7c272626cb6716ffc7800e8c73260cdce6, >= 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 < ff466f77d0a56719979c4234abd412abd98eae8f, >= 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 < fc0e18f95c88435bd8a1ceb540243cd7fbcd9781, >= 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 < 08bd1be1c716fd50a7df48f82dcbc59a103082b5, >= 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 < 54ee23e4ab263a495ace1eed43d3883212ece17f, >= 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 < d8f28269dd4bf9b55c3fb376ae31512730a96fce, >= 4.19. Treat incomplete inventory results as unresolved.
Prioritize with independent signals
The CVSS severity warrants an early asset and exposure review. Combine this signal with asset criticality, exposure, compensating controls, and business impact.
Apply supported remediation
Follow the vendor advisory or supported update path. Current fixed-version status: No verified fixed-version field is available yet. Preserve configuration and rollback material before change.
Verify the result
Confirm the resulting version, service health, authentication and access paths, monitoring coverage, and relevant security logs.
- Confirm the expected version and package state.
- Run a functional health check for critical service paths.
- Review authentication, error, application, and security monitoring logs.
- Reassess exposure if the supported fix cannot be applied.
Operational boundary
This page does not replace the vendor advisory, support contract, change-management process, or recovery plan. Do not infer that an asset is unaffected from an incomplete inventory query or a missing fixed-version field.