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authorMateusz Jurczyk <[email protected]>2017-06-29 14:04:59 +0200
committerMarcel Holtmann <[email protected]>2017-06-29 14:37:57 +0200
commitd2ecfa765dff59145a4ba9c84856e50c4f43c2b2 (patch)
tree234b4b6a034d7398be70b2ca7dd655de5aad864d /net/lapb/lapb_subr.c
parent29e2dd0d56ea0d6c4a95c080760e1cc748fb6f14 (diff)
Bluetooth: Add sockaddr length checks before accessing sa_family in bind and connect handlers
Verify that the caller-provided sockaddr structure is large enough to contain the sa_family field, before accessing it in bind() and connect() handlers of the Bluetooth sockets. Since neither syscall enforces a minimum size of the corresponding memory region, very short sockaddrs (zero or one byte long) result in operating on uninitialized memory while referencing sa_family. Signed-off-by: Mateusz Jurczyk <[email protected]> Signed-off-by: Marcel Holtmann <[email protected]>
Diffstat (limited to 'net/lapb/lapb_subr.c')
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