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| author | Jens Axboe <[email protected]> | 2020-10-27 00:03:18 +0000 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2020-10-27 16:57:46 +0000 |
| commit | 38dc5079da7081e8b09b14e255e9da82c451a531 (patch) | |
| tree | f1c872f5a3cad39a3ac3d69766f3ccb0b56916f0 /drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c | |
| parent | scsi: qla2xxx: remove incorrect sparse #ifdef (diff) | |
| download | kernel-38dc5079da7081e8b09b14e255e9da82c451a531.tar.gz kernel-38dc5079da7081e8b09b14e255e9da82c451a531.zip | |
Fix compat regression in process_vm_rw()
The removal of compat_process_vm_{readv,writev} didn't change
process_vm_rw(), which always assumes it's not doing a compat syscall.
Instead of passing in 'false' unconditionally for 'compat', make it
conditional on in_compat_syscall().
[ Both Al and Christoph point out that trying to access a 64-bit process
from a 32-bit one cannot work anyway, and is likely better prohibited,
but that's a separate issue - Linus ]
Fixes: c3973b401ef2 ("mm: remove compat_process_vm_{readv,writev}")
Reported-and-tested-by: Kyle Huey <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
Acked-by: Al Viro <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c')
0 files changed, 0 insertions, 0 deletions