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| author | Nikunj A Dadhania <nikunj@amd.com> | 2025-03-06 11:17:21 +0300 |
|---|---|---|
| committer | Borislav Petkov (AMD) <bp@alien8.de> | 2025-03-07 15:34:25 +0300 |
| commit | ac7c06acaa3738b38e83815ac0f07140ad320f13 (patch) | |
| tree | 26835ef7d2ce8d93503458fd13334586d86d0325 /scripts/extract-fwblobs | |
| parent | 14cb5d83068ecf15d2da6f7d0e9ea9edbcbc0457 (diff) | |
| download | linux-ac7c06acaa3738b38e83815ac0f07140ad320f13.tar.xz | |
virt: sev-guest: Allocate request data dynamically
Commit
ae596615d93d ("virt: sev-guest: Reduce the scope of SNP command mutex")
narrowed the command mutex scope to snp_send_guest_request(). However,
GET_REPORT, GET_DERIVED_KEY, and GET_EXT_REPORT share the req structure in
snp_guest_dev. Without the mutex protection, concurrent requests can overwrite
each other's data. Fix it by dynamically allocating the request structure.
Fixes: ae596615d93d ("virt: sev-guest: Reduce the scope of SNP command mutex")
Closes: https://github.com/AMDESE/AMDSEV/issues/265
Reported-by: andreas.stuehrk@yaxi.tech
Signed-off-by: Nikunj A Dadhania <nikunj@amd.com>
Signed-off-by: Alexey Kardashevskiy <aik@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20250307013700.437505-2-aik@amd.com
Diffstat (limited to 'scripts/extract-fwblobs')
0 files changed, 0 insertions, 0 deletions