Mathias Nyman 6bcca605ff thunderbolt: dma_port: Fix NVM read buffer bounds and offset issue ... commit b106776080 upstream. Up to 64 bytes of data can be read from NVM in one go. Read address must be dword aligned. Data is read into a local buffer. If caller asks to read data starting at an unaligned address then full dword is anyway read from NVM into a local buffer. Data is then copied from the local buffer starting at the unaligned offset to the caller buffer. In cases where asked data length + unaligned offset is over 64 bytes we need to make sure we don't read past the 64 bytes in the local buffer when copying to caller buffer, and make sure that we don't skip copying unaligned offset bytes from local buffer anymore after the first round of 64 byte NVM data read. Fixes: 3e13676862 ("thunderbolt: Add support for DMA configuration based mailbox") Cc: stable@vger.kernel.org Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-06-03 08:36:15 +02:00
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cap.c
ctl.c
ctl.h
dma_port.c	thunderbolt: dma_port: Fix NVM read buffer bounds and offset issue	2021-06-03 08:36:15 +02:00
dma_port.h
domain.c
eeprom.c
icm.c
Kconfig
Makefile
nhi.c	thunderbolt: Add the missed ida_simple_remove() in ring_request_msix()	2020-11-18 18:27:58 +01:00
nhi.h
nhi_regs.h
path.c
switch.c
tb.c
tb.h
tb_msgs.h
tb_regs.h
tunnel_pci.c
tunnel_pci.h