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| author | David Windsor <dwindsor@gmail.com> | 2026-06-29 20:13:33 -0400 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2026-07-02 13:21:49 +0200 |
| commit | abf08854d224085e2ebb3ba660e7995909f47d6a (patch) | |
| tree | f48461ec6a6eae8d75f739a4689cefb4200ce24b /Documentation/gpu/intel-display/git@git.tavy.me:linux.git | |
| parent | 037a3c43edfb597665dd34457cd22b14692f2ba3 (diff) | |
x86/uprobes: Keep shadow stack in sync for emulated CALLs
Uprobe CALL emulation updates the normal user stack, but not the CET user
shadow stack. The subsequent RET then sees a stale shadow stack entry and
raises #CP.
Update the relative CALL emulation and XOL CALL fixup paths to keep the
shadow stack in sync.
Fixes: 488af8ea7131 ("x86/shstk: Wire in shadow stack interface")
Signed-off-by: David Windsor <dwindsor@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Jiri Olsa <jolsa@kernel.org>
Link: https://patch.msgid.link/8b5b1c7407b98f31664ad7b6a6faf20d2d4a6cad.1782777969.git.dwindsor@gmail.com
Diffstat (limited to 'Documentation/gpu/intel-display/git@git.tavy.me:linux.git')
0 files changed, 0 insertions, 0 deletions