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| author | David Kaplan <david.kaplan@amd.com> | 2024-06-02 13:19:09 -0500 |
|---|---|---|
| committer | Borislav Petkov (AMD) <bp@alien8.de> | 2024-06-03 17:19:03 +0200 |
| commit | 93c1800b3799f17375989b0daf76497dd3e80922 (patch) | |
| tree | e239ee8c06e170d7fd6d77e488d85a749af2400d /lib/crypto/mpi/mpi-mul.c | |
| parent | c3f38fa61af77b49866b006939479069cd451173 (diff) | |
x86/kexec: Fix bug with call depth tracking
The call to cc_platform_has() triggers a fault and system crash if call depth
tracking is active because the GS segment has been reset by load_segments() and
GS_BASE is now 0 but call depth tracking uses per-CPU variables to operate.
Call cc_platform_has() earlier in the function when GS is still valid.
[ bp: Massage. ]
Fixes: 5d8213864ade ("x86/retbleed: Add SKL return thunk")
Signed-off-by: David Kaplan <david.kaplan@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com>
Cc: <stable@kernel.org>
Link: https://lore.kernel.org/r/20240603083036.637-1-bp@kernel.org
Diffstat (limited to 'lib/crypto/mpi/mpi-mul.c')
0 files changed, 0 insertions, 0 deletions