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| author | Vamsi Krishna Samavedam <[email protected]> | 2020-11-30 20:34:53 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <[email protected]> | 2020-12-04 15:09:10 +0000 |
| commit | a4b98a7512f18534ce33a7e98e49115af59ffa00 (patch) | |
| tree | d6f5bc4a771da32e94f12f958e279c95a4ce662b /tools/perf/python/tracepoint.py | |
| parent | usb: ohci-omap: Fix descriptor conversion (diff) | |
| download | kernel-a4b98a7512f18534ce33a7e98e49115af59ffa00.tar.gz kernel-a4b98a7512f18534ce33a7e98e49115af59ffa00.zip | |
usb: gadget: f_fs: Use local copy of descriptors for userspace copy
The function may be unbound causing the ffs_ep and its descriptors
to be freed while userspace is in the middle of an ioctl requesting
the same descriptors. Avoid dangling pointer reference by first
making a local copy of desctiptors before releasing the spinlock.
Fixes: c559a3534109 ("usb: gadget: f_fs: add ioctl returning ep descriptor")
Reviewed-by: Peter Chen <[email protected]>
Signed-off-by: Vamsi Krishna Samavedam <[email protected]>
Signed-off-by: Jack Pham <[email protected]>
Cc: stable <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Diffstat (limited to 'tools/perf/python/tracepoint.py')
0 files changed, 0 insertions, 0 deletions