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| author |   Keith Lucas <keith.lucas@oracle.com> | 2024-08-02 06:13:18 +0000 |
|---|---|---|
| committer |   Thomas Gleixner <tglx@linutronix.de> | 2024-08-02 14:12:21 +0200 |
| commit | 6998a73efbb8a87f4dd0bddde90b7f5b0d47b5e0 (patch) | |
| tree | f72764ebd02be0401ee14ea944fe3fd614ded7b2 /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | x86/pkeys: Restore altstack access in sigreturn() (diff) | |
| download | wireguard-linux-6998a73efbb8a87f4dd0bddde90b7f5b0d47b5e0.tar.xz wireguard-linux-6998a73efbb8a87f4dd0bddde90b7f5b0d47b5e0.zip | |
selftests/mm: Add new testcases for pkeys
Add a few new tests to exercise the signal handler flow, especially with
PKEY 0 disabled:
- Verify that the SIGSEGV handler is invoked when pkey 0 is disabled.
- Verify that a thread which disables PKEY 0 segfaults with PKUERR when
accessing the stack.
- Verify that the SIGSEGV handler that uses an alternate signal stack is
correctly invoked when the thread disabled PKEY 0
- Verify that the PKRU value set by the application is correctly restored
upon return from signal handling.
- Verify that sigreturn() is able to restore the altstack even if the
thread had PKEY 0 disabled
[ Aruna: Adapted to upstream ]
[ tglx: Made it actually compile. Restored protection_keys compile. Added
useful info to the changelog instead of bare function names. ]
Signed-off-by: Keith Lucas <keith.lucas@oracle.com>
Signed-off-by: Aruna Ramakrishna <aruna.ramakrishna@oracle.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20240802061318.2140081-6-aruna.ramakrishna@oracle.com
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions