Posts
671
Following
107
Followers
126
A professional kernel hacker, born in August 6, 2000, and living in Korea (the South one!).

- Linux Kernel Developer @ Oracle (Linux Kernel MM) (2025.02 ~ Present)
- A slab subsystem co-maintainer and a reviewer for the reverse mapping subsystem
- Former Intern @ NVIDIA, SK Hynix, Panmnesia (Security, MM and CXL)
- B.Sc. in Computer Science & Engineering, Chungnam National University (Class of 2025)

Opinions are my own.

My interests are:
Memory Management,
Computer Architecture,
Circuit Design,
Virtualization
hyeyoo
repeated
linkersec@infosec.exchange

Linux Kernel Security

slab: support for compiler-assisted type-based slab cache partitioning

@melver posted a kernel patch that provides an alternative mode to RANDOM_KMALLOC_CACHES called TYPED_KMALLOC_CACHES.

The new mode leverages a Clang 22 feature called "allocation tokens". Unlike RANDOM_KMALLOC_CACHES, this mode deterministically assigns caches to allocations based on their types, and not allocation sites.

https://lore.kernel.org/all/20260331111240.153913-1-elver@google.com/

1
5
1
hyeyoo

Harry (Hyeonggon) Yoo

Reply to @linkersec@infosec.exchange
Edited 1 month ago
@linkersec @melver /me piggybacks on Marco's nice security enhancement work with little effort blobcatpaw
0
0
2
hyeyoo

Harry (Hyeonggon) Yoo

Reply to @ljs@mastodonapp.uk
Edited 1 month ago
@ljs in your case, you start the day, thinking "okay finally I have some time to work on my project, I reviewed all the churns!", then a few ppl send series of 10+ patches and start looking at them & decide to like or refuse them & say something, and repeat this tmrw...
1
0
1
hyeyoo

Harry (Hyeonggon) Yoo

Edited 1 month ago
I wake up and start the day, thinking "okay, this feature is now ready. I'm just doing the last review & test now before submitting it", then find a new bug, fix it, review others code, investigate another issue, then repeat this tomorrow...
1
0
3
hyeyoo
repeated
kernellogger@hachyderm.io

Thorsten Leemhuis (acct. 1/4)

7.0 is out:

https://lore.kernel.org/lkml/CAHk-=wj2WqpPBwpAXo8bj_Hx-NxKMRVTVMUaQis7+Vm6XLRZiw@mail.gmail.com/

For a list of new features, see:
* the LWN brief news entry – https://lwn.net/Articles/1067279/ (Screenshotted below)

* the LWN merge-window summaries – https://lwn.net/Articles/1057769/ and https://lwn.net/Articles/1058664/

* the KernelNewbies 7.0 page – https://kernelnewbies.org/Linux_7.0

And reminder: the jump from 6.19 to 7.0 does not mean anything apart from "Linus ran out of fingers and toes to count on."

0
5
1
hyeyoo

Harry (Hyeonggon) Yoo

Reply to @sef1548@mastodon.social
@sef1548 I already got one a few months ago due to backpain 😢😢
2
0
1
hyeyoo

Harry (Hyeonggon) Yoo

Reply to @oleksandr@natalenko.name
@oleksandr new regressions keep getting added as I get older...
0
0
1
hyeyoo

Harry (Hyeonggon) Yoo

oops my back suddenly hurts today. what's wrong!
2
0
0
hyeyoo

Harry (Hyeonggon) Yoo

Reply to @sef1548@mastodon.social
@sef1548 Linux v7.0-rc4 with some custom kernel patches on top!
0
0
1
hyeyoo

Harry (Hyeonggon) Yoo

Reply to @ljs@mastodonapp.uk
Edited 1 month ago
@ljs oh calm down bruv, tbf it's not me and let's blame the guy who broke it, right?
1
0
1
hyeyoo

Harry (Hyeonggon) Yoo

Reply to @ljs@mastodonapp.uk
@ljs

At least it's not broken as usual!
*runs away*
1
0
1
hyeyoo

Harry (Hyeonggon) Yoo

Edited 1 month ago
the feeling when you start watching youtube after work but no sound comes out cuz you're running an experimental kernel without audio driver
2
1
4
hyeyoo

Harry (Hyeonggon) Yoo

Reply to @ljs@mastodonapp.uk
@ljs **reads the instructions** No I'm not. I am Harry. I like eating lobsters, and cannibalism is not my thing, so I'm not a lobster sir.
1
0
1
hyeyoo

Harry (Hyeonggon) Yoo

Reply to @ljs@mastodonapp.uk
@ljs

lobsters shitposting in Slack instead of fedi, deleting things they shouldn't, spending money on things you don't need, sending messages to ex, etc...
2
0
3
hyeyoo

Harry (Hyeonggon) Yoo

Reply to @ljs@mastodonapp.uk
Edited 1 month ago
@ljs @vaurora @vbabka @ffmancera @ptesarik
@brauner

so the new age verification feature won't allow him to create files? poor Vlasta :(
1
0
3
hyeyoo

Harry (Hyeonggon) Yoo

Reply to @sef1548@mastodon.social
@sef1548 @lwn You're not alone! ;)
0
0
1
hyeyoo

Harry (Hyeonggon) Yoo

Edited 1 month ago
@lwn oh no lwn.net is down
1
0
0
hyeyoo

Harry (Hyeonggon) Yoo

Reply to @haoli
Edited 1 month ago
@haoli @ljs @vbabka

Did I mention even AI did not fall for it? hehe
You are human!
1
1
3
hyeyoo

Harry (Hyeonggon) Yoo

Reply to @hyeyoo
@sj @haoli @kernellogger @vbabka

by the way how am I supposed to prove I'm Harry Potter, do I walk through Platform 9 3/4 and see if I can get through?
2
0
2
hyeyoo

Harry (Hyeonggon) Yoo

Reply to @sj
@sj @haoli @kernellogger @vbabka Oh you know who it is!
1
0
1
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: