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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2026-11-06 13:18:19 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2026-11-06 13:18:19 -0800 |
| commit | d48723711bae9b8cdc56719c448ba42fef28cbee (patch) | |
| tree | 01dee483dfd26ba340ee4d3653f6c848b24fe823 /tools | |
| parent | bdeb84ed24e543930487f03f5243bbf83aebaf31 (diff) | |
| parent | 58c1eb84e97701c583605ba2fd553b69afba2245 (diff) | |
Pull arm64 fixes from Catalin Marinas:
"Fix SDEI (software delegated exception interface) handlers taking
nested exceptions (looping on the KPTI trampoline vectors and
clobbering the interrupted context's exception registers), TPIDR2_EL0
preservation across CPU suspend, a kexec_file_load() memory leak and
an overflow in the /dev/mem valid_mmap_phys_addr_range() check:
- Fix nested exceptions taken by SDEI event handlers.
With KPTI, an event interrupting user space left the trampoline
vectors installed and any exception in the handler looped forever.
Also save and restore ELR/SPSR/ESR/FAR around the handler since an
event can interrupt exception entry or return where these registers
are live
- Save and restore TPIDR2_EL0 across CPU suspend.
Its value is UNKNOWN after a warm reset and the task initiating
suspend could return to user space with a corrupted value
- Fix an overflow in valid_mmap_phys_addr_range() allowing /dev/mem
to map out-of-range PFNs
- Fix an elf_headers memory leak in the kexec_file segment placement
retry loop"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: sdei: Preserve the interrupted context's exception registers
arm64: sdei: Run the event handler on the kernel vectors
arm64: kexec_file: Fix elf_headers memory leak in retry loop
arm64: mm: validate /dev/mem mmap ranges without overflow
arm64: suspend: Save and restore TPIDR2_EL0 across CPU suspend
Diffstat (limited to 'tools')
0 files changed, 0 insertions, 0 deletions
