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| author | Steven Clarkson <[email protected]> | 2020-01-31 00:48:16 +0000 |
|---|---|---|
| committer | Borislav Petkov <[email protected]> | 2020-01-31 19:03:23 +0000 |
| commit | 2b73ea3796242608b4ccf019ff217156c92e92fe (patch) | |
| tree | 766669a6b7bdd129458682853dc925a6c7a4932a /drivers/gpu/drm/amd/amdgpu/atom.c | |
| parent | x86/timer: Don't skip PIT setup when APIC is disabled or in legacy mode (diff) | |
| download | kernel-2b73ea3796242608b4ccf019ff217156c92e92fe.tar.gz kernel-2b73ea3796242608b4ccf019ff217156c92e92fe.zip | |
x86/boot: Handle malformed SRAT tables during early ACPI parsing
Break an infinite loop when early parsing of the SRAT table is caused
by a subtable with zero length. Known to affect the ASUS WS X299 SAGE
motherboard with firmware version 1201 which has a large block of
zeros in its SRAT table. The kernel could boot successfully on this
board/firmware prior to the introduction of early parsing this table or
after a BIOS update.
[ bp: Fixup whitespace damage and commit message. Make it return 0 to
denote that there are no immovable regions because who knows what
else is broken in this BIOS. ]
Fixes: 02a3e3cdb7f1 ("x86/boot: Parse SRAT table and count immovable memory regions")
Signed-off-by: Steven Clarkson <[email protected]>
Signed-off-by: Borislav Petkov <[email protected]>
Cc: [email protected]
Link: https://bugzilla.kernel.org/show_bug.cgi?id=206343
Link: https://lkml.kernel.org/r/CAHKq8taGzj0u1E_i=poHUam60Bko5BpiJ9jn0fAupFUYexvdUQ@mail.gmail.com
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/atom.c')
0 files changed, 0 insertions, 0 deletions