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| author | Tom Lendacky <[email protected]> | 2025-07-16 20:41:35 +0000 |
|---|---|---|
| committer | Borislav Petkov (AMD) <[email protected]> | 2025-08-15 15:05:39 +0000 |
| commit | c08ba63078dd6046c279df37795cb77e784e1ec9 (patch) | |
| tree | 7dc3c8b11a3c1e59c7babd594cf3842fb743217e /net/core/dev.c | |
| parent | x86/sev: Improve handling of writes to intercepted TSC MSRs (diff) | |
| download | kernel-c08ba63078dd6046c279df37795cb77e784e1ec9.tar.gz kernel-c08ba63078dd6046c279df37795cb77e784e1ec9.zip | |
virt: sev-guest: Satisfy linear mapping requirement in get_derived_key()
Commit
7ffeb2fc2670 ("x86/sev: Document requirement for linear mapping of guest request buffers")
added a check that requires the guest request buffers to be in the linear
mapping. The get_derived_key() function was passing a buffer that was
allocated on the stack, resulting in the call to snp_send_guest_request()
returning an error.
Update the get_derived_key() function to use an allocated buffer instead
of a stack buffer.
Fixes: 7ffeb2fc2670 ("x86/sev: Document requirement for linear mapping of guest request buffers")
Signed-off-by: Tom Lendacky <[email protected]>
Signed-off-by: Borislav Petkov (AMD) <[email protected]>
Cc: <[email protected]>
Link: https://lore.kernel.org/9b764ca9fc79199a091aac684c4926e2080ca7a8.1752698495.git.thomas.lendacky@amd.com
Diffstat (limited to 'net/core/dev.c')
0 files changed, 0 insertions, 0 deletions