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doesn't seem like ubuntu 4.4 LTS kernels want to pull the upstream patch. can still rip <-- 0 with syscall(__NR_clock_gettime, 10, 0)pic.twitter.com/SBceR9K20Y
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ARM boards collection Odroid, HiKey, Rock64, Fireflypic.twitter.com/Dga3Yjo5EN
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thanks to slab accounting enabled on a certain cache, a previously non-exploitable bug is now 95+% reliable =)pic.twitter.com/v9ruM8423W
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just noticed this trivial user enumeration over ssh on Ubuntu 18.04pic.twitter.com/hjy8qJkrqy
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"compiler lacks asm-goto support.." means the path to the compiler is wrong lolpic.twitter.com/3zifBey57a
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received my rootkits & bootkits copy and up to chapter 8 now. great book
@matrosov love it!pic.twitter.com/N4UDYzzqxT
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new odroid n2 boards have arrived. the only downside - there're no holes on the top side of the pcb for stacking them into a cluster :/ the passive heatsink is actually pretty good for running them at 100% util 24/7 without ext fanspic.twitter.com/YZDfAhKIbQ
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this looks bogus https://www.openwall.com/lists/oss-security/2019/01/23/6 … buffers_ptr is checked in copy_to_user() in 2579 anywaypic.twitter.com/fqy5Sx83gJ
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this slab oob 12-byte read in memcpy is still not fixed in 4.4 upstreampic.twitter.com/njNyesH0qP
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Linux kernel userfaultfd+setxattr heap spray writeup @bevxcon https://cyseclabs.com/blog/linux-kernel-heap-spray …pic.twitter.com/4vzOtu0RL4
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I've built a small arm64 fuzzing cluster with these boards. Pretty good value for $$ http://pine64.org pic.twitter.com/FkLJwuF1i2
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all 4.4 ubuntu aws instances are vulnerable: echo "deb http://archive.ubuntu.com/ubuntu/ xenial-proposed restricted main multiverse universe" > /etc/apt/sources.list && apt update && apt install linux-image-4.4.0-117-genericpic.twitter.com/BFK6W01Uj0
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Finally Ubuntu-4.4.0-117.141 killed
@bleidl bug. Still unpatched in upstream 4.4.121 (though dead code sanitisation helps). and still a 0day on Ubuntu 16.04 http://cyseclabs.com/pub/upstream44.c …pic.twitter.com/YgTnkDtIQ6
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uploaded my last workshop Linux kernel bug (addr_limit/set_fs bug + stack info leak) walkthroughhttps://www.youtube.com/watch?v=UFakJa3t8Ls …
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