Become a sponsor to Devin Wittmayer
Reverse engineering, both directions
I am a Linux systems developer and a vulnerability researcher. One skill drives both halves of the work: I take closed hardware and software apart down to the last byte, then use what I learn to build drivers for hardware Linux never supported and to find the security bugs hiding in software everyone runs.
Open source (what your sponsorship funds):
- A patch in the mainline Linux kernel, plus merged fixes across mac80211 and the MediaTek WiFi drivers.
- A from-scratch driver for the AIC8800 USB WiFi family, reverse-engineered with no source and no datasheet.
- Write and triage collaborator on morrownr/mt76, and the install scripts thousands of people paste to run these adapters.
Security research:
- My first published CVE, CVE-2026-20161, a local root in Cisco ThousandEyes.
- A track record of privilege escalations and remote code execution in enterprise VPN, endpoint-protection, and monitoring software, found through bug bounty programs (Bugcrowd, HackerOne) and disclosed responsibly. The specific vendors stay under NDA; the CVE above is the one that is public.
What sponsorship pays for:
- The test hardware the driver work runs on: rotating adapters, access points, and clients.
- The unglamorous half of the job: upstreaming patches, chasing kernel regressions, and keeping the drivers working across new kernels so you do not have to.
I do the open-source side entirely in public, every commit and every fix. Sponsors are what let me keep spending real hours on it. Thank you for considering it.
Featured work
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morrownr/mt76
Provides modern, mac80211, out-of-tree (out-of-kernel) Linux driver support for the following Mediatek wireless chips: MT7610, MT7612, MT7602, MT7662, MT7615, MT7663, MT7902, MT7920, MT7921, MT7922…
C 30 -
morrownr/rtl8852cu-20251113
Linux Driver for USB WiFi Adapters that are based on the RTL8832CU and RTL8852CU Chipsets - v1.19.22-103 - 20251113
C 23 -
Lucid-Duck/rtw89-usb3-gap
Mainline rtw89 USB 2 to USB 3 switch-mode gap: empirical proof across multiple adapters, hosts, and kernels
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Lucid-Duck/wifi-pentest-comparisons
WiFi adapter comparisons for penetration testing -- chipset analysis and monitor mode support.
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Lucid-Duck/tx-resources-flow-control
Linux kernel patch -- USB TX resources flow control for wireless drivers. Merged mainline as 80119a77e5b0 (2026-04-02).
Shell 3
0% towards 10 monthly sponsors goal
Be the first to sponsor this goal!
$5 a month
SelectKeep the lights on
The tier that quietly funds everything else.
- Sponsor badge on your profile
- Your name in the repo SUPPORTERS list
A stack of small, steady sponsors pays for the drivers, the kernel fixes, and the test hardware better than the occasional big one. This tier punches well above its weight. Thank you for being in it.
$10 a month
SelectBacker
Everything in Keep the lights on, plus a look behind the curtain.
- A short monthly note on what is in flight: what I am upstreaming, what broke, what is next
Every commit is already public. This is the running commentary on the work you are funding.
$25 a month
SelectAdapter tester
Everything in Backer, plus your hardware moves up the list.
- When I am adding or fixing device support, your adapter requests get priority
If you run one of these chipsets and want it working right, this puts your gear near the front of the queue.
$50 a month
SelectDriver patron
Everything in Adapter tester, plus your name on the work itself.
- Your name or handle in the driver repos, not just a supporters list
- My genuine thanks every time your adapter just works
This is for the people who want these drivers to keep existing and are willing to seriously back that.
$100 a month
SelectHardware fund
Everything in Driver patron, plus you are buying the bench.
- Priority on your bug reports
- You directly fund the rotating test adapters, access points, and clients the work runs on
- Name or logo in the driver repos
Real drivers need real hardware to test against every kernel and chipset. At this tier you pay for that shelf.
$500 a month
SelectBusiness sponsor
For companies shipping or depending on these adapters. Everything in Hardware fund, plus a direct line.
- A direct line for driver issues, and priority on device support for the chipsets you ship
- Your logo on my profile and in the driver repos
If your product relies on these adapters working on Linux, this keeps the person who maintains them funded and reachable 24/7