diff options
| author | Joerg Roedel <[email protected]> | 2023-06-21 17:42:42 +0200 |
|---|---|---|
| committer | Borislav Petkov (AMD) <[email protected]> | 2023-10-09 15:47:57 +0200 |
| commit | b9cb9c45583b911e0db71d09caa6b56469eb2bdf (patch) | |
| tree | b8046c802a8613737f7603624dbfb6d7dbe48db4 /lib/test_fortify/write_overflow-strncpy-src.c | |
| parent | a37cd2a59d0cb270b1bba568fd3a3b8668b9d3ba (diff) | |
x86/sev: Check IOBM for IOIO exceptions from user-space
Check the IO permission bitmap (if present) before emulating IOIO #VC
exceptions for user-space. These permissions are checked by hardware
already before the #VC is raised, but due to the VC-handler decoding
race it needs to be checked again in software.
Fixes: 25189d08e516 ("x86/sev-es: Add support for handling IOIO exceptions")
Reported-by: Tom Dohrmann <[email protected]>
Signed-off-by: Joerg Roedel <[email protected]>
Signed-off-by: Borislav Petkov (AMD) <[email protected]>
Tested-by: Tom Dohrmann <[email protected]>
Cc: <[email protected]>
Diffstat (limited to 'lib/test_fortify/write_overflow-strncpy-src.c')
0 files changed, 0 insertions, 0 deletions