diff options
| author | Quentin Perret <qperret@google.com> | 2021-10-05 13:20:31 +0100 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2021-10-05 13:22:45 +0100 |
| commit | 6e6a8ef088e1222cb1250942f51ad9c1ab219ab2 (patch) | |
| tree | fe3c1e6580ff2ccf37ff0b71010d9001fd2608b6 /lib/test_fortify/write_overflow-strcpy.c | |
| parent | 7615c2a514788559c6684234b8fc27f3a843c2c6 (diff) | |
KVM: arm64: Release mmap_lock when using VM_SHARED with MTE
VM_SHARED mappings are currently forbidden in a memslot with MTE to
prevent two VMs racing to sanitise the same page. However, this check
is performed while holding current->mm's mmap_lock, but fails to release
it. Fix this by releasing the lock when needed.
Fixes: ea7fc1bb1cd1 ("KVM: arm64: Introduce MTE VM feature")
Signed-off-by: Quentin Perret <qperret@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211005122031.809857-1-qperret@google.com
Diffstat (limited to 'lib/test_fortify/write_overflow-strcpy.c')
0 files changed, 0 insertions, 0 deletions