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Jann Horn
works at Google Project Zero. personal account.
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Jann Horn retweeted
Laurel Coons 🧬🧬🧬 Jan 31
The Power Of : 🧼Teacher asked several kids with various levels of hand to touch 5 pieces of white bread that were taken from the same loaf, at the same time 🧼Then, they put the bread in individual plastic bags to observe what would happen over 1 month
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Jann Horn retweeted
Simon Weckert Feb 1
99 smartphones are transported in a handcart to generate virtual traffic jam in Google Maps. Through this activity, it is possible to turn a green street red which has an impact in the physical world by navigating cars on another route!
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Jann Horn retweeted
halvarflake Jan 30
Disabling the loading of unsigned drivers may be the most jarring "only ever stops the good guys" security measure.
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Jann Horn retweeted
Thorsten 'the Linux kernel logger' Leemhuis(6/6) Jan 30
We got one little step closer to support in the : The rework of the printk() subsystem, which afaik is the last big change needed for proper PREEMPT_RT support, left the RFC state and was sent to for review recently:
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Jann Horn retweeted
Richard Geldreich Jan 28
At the very last minute, the Halo Wars 1 (Xbox 360) developers changed the custom std::vector container equivalent (likely used in thousands of places in the code) to do range checking on *all* operator[]'s. This shipped.
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Jann Horn Jan 20
Replying to @halvarflake
you're saying they're arguing against Rust, too?
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Jann Horn retweeted
whitequark Jan 17
good news: the upstream fixed the crash very promptly bad news: turns out the crash was hiding a bug in the temperature calculation code, so I got to witness a soldering iron tip glowing bright cherry red
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Jann Horn Jan 15
Replying to @halvarflake @paulbohm
wouldn't time dilation fix those latency issues from the perspective of the traveller?
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Jann Horn retweeted
Lennart Poettering Jan 14
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Jann Horn retweeted
Roy van Rijn Jan 6
You've got to be shitting me... One of our office chairs turns off monitors... we couldn't believe it, but we have it on tape. Surprisingly, there even is a known issue for it:
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Jann Horn retweeted
Prof B Buchanan OBE Jan 7
Another nail in the coffin for SHA-1 ...
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Jann Horn retweeted
Lunarbaboon Jan 4
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svbl Jan 2
TIL you can leak the device name with attempted pw reset of a Gmail account.
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Jann Horn retweeted
Adrienne Porter Felt Dec 30
Watch now: EPISODE 7 of SPACE OFFICE. Follow a new logistics officer as she settles in to life on a First Order Star Destroyer. Critics are calling this new series "unforgettable" and "definitely not filmed in the children's section of a library."
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Jann Horn retweeted
Thorsten 'the Linux kernel logger' Leemhuis(6/6) Dec 29
"[…] The apparent cause of at least some of the 5.5 slowdowns after bisecting turned out to be […] it explains why the likes of Red Hat's upstream developers and others weren't affected and thus not quickly jumping on the problem […]"
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Jann Horn retweeted
byuu Dec 29
My site was flagged again. Therefore, all downloads have been removed until this can be resolved. I've written an article about this here: . I would appreciate any retweets to bring attention to this; it affects all free and open source software developers.
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Jann Horn retweeted
Adrienne Porter Felt Dec 28
I want to watch a Star Wars film that's just a logistics officer trying to wrangle 40k people onto a giant ship. Storm troopers getting lost in the hallways. Officers complaining about the lack of enough vegan options. Like Office Space but actually in space
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Jann Horn retweeted
Johnathan Norman Dec 19
My team ran a similar analysis years ago and found it was specific teams within a larger product group which introduced most security bugs.
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Jann Horn Dec 18
Replying to @natashenka
knows how to do it properly
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Jann Horn retweeted
Tavis Ormandy Dec 17
I guess this is what advisories are going to look like in 2020?
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