24 Oct 2025
2️⃣ Upload item data: Information for each jewel was uploaded to ORIGYN system
3️⃣ Mint digital certificates: ORIGYN minted mimmutable digital certificates, permanently recording them on a blockchain network, ensuring lasting authenticity.
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5 Nov 2024
lwn.net/Articles/960465/
Theo de Raadt: sharing the experiences and insight gained from
implementing mimmutable() in OpenBSD.
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31 Oct 2024
Theo de Raadt was involved in discussions with aligning Google's mseal with OpenBSD's much simpler mimmutable, it changed quite a bit in later patch series.
On OpenBSD, most of a programs static address space (.text/ld.so's .text/.bss/main stack) is now automatically immutable.
25 Oct 2024
The Linux kernel 6.10 introduces the mseal syscall for memory protection. Discover its unique features, how it differs from prior schemes, its kernel implementation, and the userspace exploits it prevents.
hubs.la/Q02VNW-30
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20 Jan 2024
A few characters basically stated before that "OpenBSD mimmutable(2) is useless"
If it is so useless, why have paid employees at Google been spending the past 6 months cloning mimmutable to make mseal() for defending Chrome? 🤔
marc.info/?l=linux-kernel&w=…
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20 Jan 2024
#OpenBSD mimmutable(2) no longer permits RW -> R demotion for immutable mappings: marc.info/?l=openbsd-cvs&m=1…
Further context: marc.info/?l=linux-kernel&m=…
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25 Mar 2023
Theo de Raadt at CanSecWest: Synthetic Memory Protections undeadly.org/cgi?action=arti… #openbsd #security #rop #mimmutable #aslr #stacksmash #heapsmash
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25 Mar 2023
Theo de Raadt at CanSecWest: Synthetic Memory Protections undeadly.org/cgi?action=arti… #openbsd #security #rop #mimmutable #aslr #sta cksmash #heapsmash
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25 Mar 2023
Highly recommend watching this talk about recent mitigation work in #OpenBSD, xonly, mimmutable, pinsyscall, etc. much of which is upcoming in 7.3. 👍
CanSecWest: Synthetic Memory Protections - Beyond R, W, and X - Theo DeRaadt x.com/i/broadcasts/1kvJpmkYk…
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13 Mar 2023
Theo de Raadt to be presenting at CanSecWest. undeadly.org/cgi?action=arti… #openbsd #cansecwest #security #mimmutable #executeonly #rop #aslr #pinsyscall
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31 Jan 2023
I love how OpenBSD's work on mimmutable naturally lead to xonly. 😊
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10 Jan 2023
anton@ modified regress/sys/uvm/Makefile: Retire wx_syscall regress tests, they have been failing since the introduction of mimmutable(2) and also needs to cope with xonly on some architectures by now. There's already the syscallwx target in regress/usr.bin/lastcomm which does...
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17 Dec 2022
#FreeBSD Home Assistant | bsdbcr adventureloop
Listen now: bsdnow.tv/485
Tails of the M1 GPU, Getting Home Assistant running in a FreeBSD 13.1 jail, interview with AWK creator Dr. Brian Kernighan, Next steps toward mimmutable, Unix's (technical) history is (1/2)
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FreeBSD Home Assistant | @bsdbcr @adventureloop
Listen now: bsdnow.tv/485
Tails of the M1 GPU, Getting Home Assistant running in a FreeBSD 13.1 jail, interview with AWK creator Dr. Brian Kernighan, Next steps toward mimmutable, Unix's (technical) history is mostly old
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12 Dec 2022
mimmutable() : a new syscall for #OpenBSD to mark some regions of memory as immutable - Article by @lwnnet lwn.net/SubscriberLink/91564…
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4 Dec 2022
deraadt@ modified libexec/ld.so: The next step for mimmutable(). ld.so figures out what regions of memory of startup shared library mappings can be made immutable, and also does this for dlope() RTLD_NODELETE and subsidiary libraries. Complexity in this di...
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