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| author |   Jann Horn <jannh@google.com> | 2021-02-19 14:59:35 +0800 |
|---|---|---|
| committer |   Ley Foon Tan <ley.foon.tan@intel.com> | 2021-02-19 15:01:59 +0800 |
| commit | c26958cb5a0d9053d1358258827638773f3d36ed (patch) | |
| tree | 26c85414097e72c6a4462d50f7fe23a5044a134f /scripts/bpf_doc.py | |
| parent | Linux 5.11 (diff) | |
| download | wireguard-linux-c26958cb5a0d9053d1358258827638773f3d36ed.tar.xz wireguard-linux-c26958cb5a0d9053d1358258827638773f3d36ed.zip | |
Take mmap lock in cacheflush syscall
We need to take the mmap lock around find_vma() and subsequent use of the
VMA. Otherwise, we can race with concurrent operations like munmap(), which
can lead to use-after-free accesses to freed VMAs.
Fixes: 1000197d8013 ("nios2: System calls handling")
Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
Diffstat (limited to 'scripts/bpf_doc.py')
0 files changed, 0 insertions, 0 deletions