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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 /drivers | |
| parent | f40ddce88593482919761f74910f42f4b84c004b (diff) | |
| download | linux-c26958cb5a0d9053d1358258827638773f3d36ed.tar.gz linux-c26958cb5a0d9053d1358258827638773f3d36ed.tar.bz2 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 'drivers')
0 files changed, 0 insertions, 0 deletions