M5 Macs Support Memory Integrity Enforcement
I haven't seen reports confirm this (only for the A19 chip) so I just bought a new M5 MacBook Pro 14" and did this: $ sysctl -a | grep MTE4 hw.optional.arm.FEAT_MTE4: 1 MTE4 is the "enhanced memory tagging extension"[1] that underlies Apple's broader Memory Integrity Enforcement system. More on MIE and why it's cool: https://ift.tt/Y5PHGNA [1] https://ift.tt/x5R8ZW0 0 comments on Hacker News.
I haven't seen reports confirm this (only for the A19 chip) so I just bought a new M5 MacBook Pro 14" and did this: $ sysctl -a | grep MTE4 hw.optional.arm.FEAT_MTE4: 1 MTE4 is the "enhanced memory tagging extension"[1] that underlies Apple's broader Memory Integrity Enforcement system. More on MIE and why it's cool: https://ift.tt/Y5PHGNA [1] https://ift.tt/x5R8ZW0
I haven't seen reports confirm this (only for the A19 chip) so I just bought a new M5 MacBook Pro 14" and did this: $ sysctl -a | grep MTE4 hw.optional.arm.FEAT_MTE4: 1 MTE4 is the "enhanced memory tagging extension"[1] that underlies Apple's broader Memory Integrity Enforcement system. More on MIE and why it's cool: https://ift.tt/Y5PHGNA [1] https://ift.tt/x5R8ZW0 0 comments on Hacker News.
I haven't seen reports confirm this (only for the A19 chip) so I just bought a new M5 MacBook Pro 14" and did this: $ sysctl -a | grep MTE4 hw.optional.arm.FEAT_MTE4: 1 MTE4 is the "enhanced memory tagging extension"[1] that underlies Apple's broader Memory Integrity Enforcement system. More on MIE and why it's cool: https://ift.tt/Y5PHGNA [1] https://ift.tt/x5R8ZW0
Hacker News story: M5 Macs Support Memory Integrity Enforcement
![Hacker News story: M5 Macs Support Memory Integrity Enforcement]()
Reviewed by Tha Kur
on
October 26, 2025
Rating:
No comments: