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| author | Thomas Gleixner <[email protected]> | 2021-06-18 16:18:24 +0200 |
|---|---|---|
| committer | Borislav Petkov <[email protected]> | 2021-06-22 10:51:23 +0200 |
| commit | 9301982c424a003c0095bf157154a85bf5322bd0 (patch) | |
| tree | f96f40f5010ecdb6218364ddaff74f24b2f0852e /tools/perf/scripts/python/Perf-Trace-Util/lib | |
| parent | 13311e74253fe64329390df80bed3f07314ddd61 (diff) | |
x86/fpu: Preserve supervisor states in sanitize_restored_user_xstate()
sanitize_restored_user_xstate() preserves the supervisor states only
when the fx_only argument is zero, which allows unprivileged user space
to put supervisor states back into init state.
Preserve them unconditionally.
[ bp: Fix a typo or two in the text. ]
Fixes: 5d6b6a6f9b5c ("x86/fpu/xstate: Update sanitize_restored_xstate() for supervisor xstates")
Signed-off-by: Thomas Gleixner <[email protected]>
Signed-off-by: Borislav Petkov <[email protected]>
Cc: [email protected]
Link: https://lkml.kernel.org/r/[email protected]
Diffstat (limited to 'tools/perf/scripts/python/Perf-Trace-Util/lib')
0 files changed, 0 insertions, 0 deletions