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| author | Jordy Zomer <jordy@pwning.systems> | 2022-01-29 18:06:04 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-02-08 20:34:06 +0300 |
| commit | 24f8e12d965b24f8aea762589e0e9fe2025c005e (patch) | |
| tree | cdffcb1506215dfbebad9097a3eb04553fd3abbf /fs/nilfs2/export.h | |
| parent | f576721152fdf9c919cc2f16784f5caa6bba91ff (diff) | |
| download | linux-24f8e12d965b24f8aea762589e0e9fe2025c005e.tar.xz | |
dma-buf: heaps: Fix potential spectre v1 gadget
commit 92c4cfaee6872038563c5b6f2e8e613f9d84d47d upstream.
It appears like nr could be a Spectre v1 gadget as it's supplied by a
user and used as an array index. Prevent the contents
of kernel memory from being leaked to userspace via speculative
execution by using array_index_nospec.
Signed-off-by: Jordy Zomer <jordy@pwning.systems>
Fixes: c02a81fba74f ("dma-buf: Add dma-buf heaps framework")
Cc: <stable@vger.kernel.org> # v5.6+
Acked-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
[sumits: added fixes and cc: stable tags]
Link: https://patchwork.freedesktop.org/patch/msgid/20220129150604.3461652-1-jordy@pwning.systems
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/nilfs2/export.h')
0 files changed, 0 insertions, 0 deletions