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| author | Zack Rusin <[email protected]> | 2024-04-25 19:27:48 +0000 |
|---|---|---|
| committer | Zack Rusin <[email protected]> | 2024-04-30 16:54:07 +0000 |
| commit | a37ef7613c00f2d72c8fc08bd83fb6cc76926c8c (patch) | |
| tree | 8c174de28603258e3f4fd102161460206295870c /net/unix/af_unix.c | |
| parent | drm/nouveau/gsp: Use the sg allocator for level 2 of radix3 (diff) | |
| download | kernel-a37ef7613c00f2d72c8fc08bd83fb6cc76926c8c.tar.gz kernel-a37ef7613c00f2d72c8fc08bd83fb6cc76926c8c.zip | |
drm/vmwgfx: Fix invalid reads in fence signaled events
Correctly set the length of the drm_event to the size of the structure
that's actually used.
The length of the drm_event was set to the parent structure instead of
to the drm_vmw_event_fence which is supposed to be read. drm_read
uses the length parameter to copy the event to the user space thus
resuling in oob reads.
Signed-off-by: Zack Rusin <[email protected]>
Fixes: 8b7de6aa8468 ("vmwgfx: Rework fence event action")
Reported-by: [email protected] # ZDI-CAN-23566
Cc: David Airlie <[email protected]>
CC: Daniel Vetter <[email protected]>
Cc: Zack Rusin <[email protected]>
Cc: Broadcom internal kernel review list <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: <[email protected]> # v3.4+
Reviewed-by: Maaz Mombasawala <[email protected]>
Reviewed-by: Martin Krastev <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Diffstat (limited to 'net/unix/af_unix.c')
0 files changed, 0 insertions, 0 deletions