Posts
992
Following
70
Followers
106
Riding horses, hacking computers, phones and smartwatch.
pavel

Pavel Machek

Reply to @dos@librem.one
@dos @cas Aha? Are you saying that next time camera fails to work, I don't have to reboot, I can just powercycle it with a switch? #Librem5 :-)
1
0
0
pavel

Pavel Machek

Reply to @xChaos@f.cz
@xChaos @logout @mkyral @radovan Cituji "A nebo si muzete proste zkusit promyslet jak a kde byste ten geofencing implementoval tak aby to a) neslo trivialne obejit a b) nemelo podstatny vliv na vydrz baterie a c) nevedela o tom pulka sveta.". Gratuluju, tohle nesplnuje ani a), ani b) ani c) :-).
0
0
0
pavel

Pavel Machek

Reply to @cas@social.treehouse.systems
@cas @migratory Actually, doing a "call" when the phone would not ring but would accept and connect audio is widely believed to be a feature available to network operators. SIM toolkit is rather powerful. Silent SMSes are widely used. I am not aware of malicious silent calls, but would not really rule that out.
1
0
0
pavel

Pavel Machek

Reply to @cas@social.treehouse.systems
@cas @migratory Not for most people. But we know targeted attacks are/were used for some people. If you make Saudis so angry they are willing to spend $1M attacking your phone, you should get phone with hw switches :-).
0
0
1
pavel

Pavel Machek

Reply to @cas@social.treehouse.systems
@cas Have you seen the complete attack on iOS where they injected using... was it through font? It is rather good story. Apparently the price of that attack was $1M or so, yet it was successful. And yes, in the end someone noticed. And yes, it is possible that _you_ would notice. But those attacks are directed at high value targets, as they are very expensive. So yes, people would notice widespread attacks on Android / iOS. Yet we know that targeted attacks happen, and we can be fairly sure most of them are not detected.

I'll be happy to meet and explain. Are you at Plumbers _now_ by chance? :-). Or in Prague later?
1
0
2
pavel

Pavel Machek

Reply to @xChaos@f.cz
@xChaos @amarok @mkyral @radovan @logout Neprijemny zvukovy alert + cervena hlaska kde se musi zmacknout ok je "normalni", je to emergency alert system. Zablokovany fotak pri slabe baterii je take normalni. Takze bych to videl na "zmatek v prekladu".
0
0
2
pavel

Pavel Machek

Reply to @radovan@mastodon.social
@radovan @xChaos @mkyral @logout Umm, sorry, o telefonech neco vim. Muzeme si popovidat o tom kolik % bezneho Androidu je AOSP, a jak ten ekosystem funguje. Muzem zminit ze by bylo tezke pro Nemeckou vladu ukecat jihokorejskeho vyrobce aby vlozil zadni vratka _a mlcel o tom_. Plus ten detail ze zapadni vlady jsou +- omezene zakony.

A nebo si muzete proste zkusit promyslet jak a kde byste ten geofencing implementoval tak aby to a) neslo trivialne obejit a b) nemelo podstatny vliv na vydrz baterie a c) nevedela o tom pulka sveta.

Pokud Vam stale nebude jasne, ze je to nemysl, budu mluvit na pristich LinuxDays, vysvetlit to osobne bude jednodussi.

[A nebo Vam treba nabidne praci nejaka tripismenkova organizace :-)].
1
0
1
pavel

Pavel Machek

Reply to @xChaos@f.cz
@xChaos @mkyral @radovan @logout Ta cervena hlaska je "normalni" dneska mi to nekdo ukazoval, v Nemecku to nedavno testovali a v Rakousku to o par dni jelo na ostro kvuli zaplavam, je to system ne emergency alerty. Kamarad si stezoval ze mu to zablokovalo telefon, protoze bylo potreba macknout ok, ktery ale bylo prekryty nejakou jinou aplikaci -- ale zrejme to nebyl zamer.
1
0
2
pavel

Pavel Machek

Reply to @radovan@mastodon.social
@radovan @xChaos @mkyral @logout Ktera vlada? A ostatni vlady si takhle nechaj zabackdoorovat telefony? Velka cast androidu je open source, nikdo si nevsiml, nikdo neprotestuje? Telefony celkem sleduju, a mam pocit ze o tomhle bych vedel. Jak by to interagovalo s airplane modem? Na blackhatu o tom neni prednaska?
2
0
4
pavel

Pavel Machek

Reply to @xChaos@f.cz
@xChaos @radovan @mkyral @logout Ano, pri slaby baterce fotak nefunguje. To pozoruju i na Droid 4.
0
0
0
pavel

Pavel Machek

RISC-V people have some talks, so I tried to look at their matrix extension. Well, now I think they are trolling the world... https://github.com/riscv/integrated-matrix-extension/blob/main/chapter2.adoc
0
0
2
pavel

Pavel Machek

Reply to @oleksandr@natalenko.name
@oleksandr CPU trigger does not even work on x86, we could not get required hooks in.
0
1
0
pavel

Pavel Machek

Reply to @rostedt
@rostedt @cas It should be said that printk() now behaves differently. Previously you could cli(); printk(); while(1); and message would go out. Now you need to panic() or some kernel parameter, IIRC.
0
0
2
pavel

Pavel Machek

Reply to @mkyral@mastodonczech.cz
@mkyral @logout @xChaos @radovan Pager ma vyhodnu ze je jednosmernej, takze neni trivialni sledovat jeho uzivatele.
0
0
0
pavel

Pavel Machek

Reply to @xChaos@f.cz
@xChaos @mkyral @logout @radovan A vyskocila hlaska nebo se opravdu vypnul fotak? Protoze to druhy si nemyslim ze je mozny, a to i na vecech jako Android.
1
0
3
pavel

Pavel Machek

Reply to @dcz@fosstodon.org
@dcz You can specify times in TAI :-).
0
0
0
pavel

Pavel Machek

Reply to @linmob@fosstodon.org
@linmob @islamicaudiobooks @insl Ok, that's not unreasonable. For me, mainline is important, but ... yeah, Debian is nice. I actually run Droidian on op6, but I hope to switch to Mobian in future.
0
0
0
pavel

Pavel Machek

I made it to hotel in Vienna. Rail and light rail I needed to use was operating normally -- apparantly I'm not in affected parts. Good, I guess.
0
1
4
pavel

Pavel Machek

Doufal jsem, ze do Vidne dorazim driv nez voda. Ted se obavam, ze tam dorazim driv nez _vetsina_ vody... a budu mit potize dostat se zpet. https://www.seznamzpravy.cz/clanek/zahranicni-rakousko-hlasi-nekolik-stoletych-povodni-vzedmuta-voda-ohrozuje-viden-260091
0
0
1
pavel

Pavel Machek

Reply to @sqrt2@chaos.social
@sqrt2 @pid_eins Oops. Thanks for info. I have it 3 hours walk from train station to the hotel. I was hoping to take rail...
0
0
2
Show older
About social.kernel.org

Terms of service

  1. Please do not use this service in violation of the Linux Kernel Code of Conduct. Doing so will result in your account suspension with the referral of the matter to the CoC committee.

  2. "Repeating"/"boosting" someone else's status on this platform will be treated as endorsement and will fall under rule #1.

  3. You are encouraged to use this platform to promote your work on the Linux Kernel, but there is no restriction on permitted topics (with the exception of anything covered by #1 above).

  4. There is no requirement to post in English, but it should be considered the primary language of communication on this platform.

Privacy notice

The admins of this service have access to all posted statuses. They aren't looking, but if it's something they shouldn't know about, then you should not post it on this platform.

Please see the Linux Foundation Privacy Policy, which applies to this platform as well.

Getting your own account

If you would like an account on this instance, please check that the following applies to you:

  • You are listed in MAINTAINERS or CREDITS

  • OR: You have a kernel.org account or email address

  • OR: You have a long and established history of involvement with the Linux Kernel

If the above is true and you agree with the Terms of Service and Privacy Notice listed above, please use these instructions to request an account: