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c34e9ab9 |
| 05-Dec-2024 |
Takashi Iwai <tiwai@suse.de> |
Merge tag 'asoc-fix-v6.13-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v6.13
A few small fixes for v6.13, all system specific - the biggest t
Merge tag 'asoc-fix-v6.13-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v6.13
A few small fixes for v6.13, all system specific - the biggest thing is the fix for jack handling over suspend on some Intel laptops.
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Revision tags: v6.13-rc1 |
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831c1926 |
| 30-Nov-2024 |
Linus Torvalds <torvalds@linux-foundation.org> |
Merge tag 'uml-for-linus-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/uml/linux
Pull UML updates from Richard Weinberger:
- Lots of cleanups, mostly from Benjamin Berg and Tiwei Bie
Merge tag 'uml-for-linus-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/uml/linux
Pull UML updates from Richard Weinberger:
- Lots of cleanups, mostly from Benjamin Berg and Tiwei Bie
- Removal of unused code
- Fix for sparse warnings
- Cleanup around stub_exe()
* tag 'uml-for-linus-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/uml/linux: (68 commits) hostfs: Fix the NULL vs IS_ERR() bug for __filemap_get_folio() um: move thread info into task um: Always dump trace for specified task in show_stack um: vector: Do not use drvdata in release um: net: Do not use drvdata in release um: ubd: Do not use drvdata in release um: ubd: Initialize ubd's disk pointer in ubd_add um: virtio_uml: query the number of vqs if supported um: virtio_uml: fix call_fd IRQ allocation um: virtio_uml: send SET_MEM_TABLE message with the exact size um: remove broken double fault detection um: remove duplicate UM_NSEC_PER_SEC definition um: remove file sync for stub data um: always include kconfig.h and compiler-version.h um: set DONTDUMP and DONTFORK flags on KASAN shadow memory um: fix sparse warnings in signal code um: fix sparse warnings from regset refactor um: Remove double zero check um: fix stub exe build with CONFIG_GCOV um: Use os_set_pdeathsig helper in winch thread/process ...
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Revision tags: v6.12, v6.12-rc7, v6.12-rc6, v6.12-rc5, v6.12-rc4, v6.12-rc3, v6.12-rc2, v6.12-rc1 |
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32e8eaf2 |
| 19-Sep-2024 |
Benjamin Berg <benjamin.berg@intel.com> |
um: use execveat to create userspace MMs
Using clone will not undo features that have been enabled by libc. An example of this already happening is rseq, which could cause the kernel to read/write m
um: use execveat to create userspace MMs
Using clone will not undo features that have been enabled by libc. An example of this already happening is rseq, which could cause the kernel to read/write memory of the userspace process. In the future the standard library might also use mseal by default to protect itself, which would also thwart our attempts at unmapping everything.
Solve all this by taking a step back and doing an execve into a tiny static binary that sets up the minimal environment required for the stub without using any standard library. That way we have a clean execution environment that is fully under the control of UML.
Note that this changes things a bit as the FDs are not anymore shared with the kernel. Instead, we explicitly share the FDs for the physical memory and all existing iomem regions. Doing this is fine, as iomem regions cannot be added at runtime.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com> Link: https://patch.msgid.link/20240919124511.282088-3-benjamin@sipsolutions.net [use pipe() instead of pipe2(), remove unneeded close() calls] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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