af4b54a2e5
`ni6501_alloc_usb_buffers()` is called from `ni6501_auto_attach()` to allocate RX and TX buffers for USB transfers. It allocates `devpriv->usb_rx_buf` followed by `devpriv->usb_tx_buf`. If the allocation of `devpriv->usb_tx_buf` fails, it frees `devpriv->usb_rx_buf`, leaving the pointer set dangling, and returns an error. Later, `ni6501_detach()` will be called from the core comedi module code to clean up. `ni6501_detach()` also frees both `devpriv->usb_rx_buf` and `devpriv->usb_tx_buf`, but `devpriv->usb_rx_buf` may have already beed freed, leading to a double-free error. Fix it bu removing the call to `kfree(devpriv->usb_rx_buf)` from `ni6501_alloc_usb_buffers()`, relying on `ni6501_detach()` to free the memory. Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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| .. | ||
| android | ||
| axis-fifo | ||
| board | ||
| clocking-wizard | ||
| comedi | ||
| emxx_udc | ||
| erofs | ||
| fbtft | ||
| fsl-dpaa2 | ||
| fwserial | ||
| gasket | ||
| gdm724x | ||
| goldfish | ||
| greybus | ||
| gs_fpgaboot | ||
| iio | ||
| ks7010 | ||
| media | ||
| most | ||
| mt7621-dma | ||
| mt7621-dts | ||
| mt7621-mmc | ||
| mt7621-pci | ||
| mt7621-pci-phy | ||
| mt7621-pinctrl | ||
| mt7621-spi | ||
| netlogic | ||
| nvec | ||
| octeon | ||
| octeon-usb | ||
| olpc_dcon | ||
| pi433 | ||
| ralink-gdma | ||
| rtl8188eu | ||
| rtl8192e | ||
| rtl8192u | ||
| rtl8712 | ||
| rtl8723bs | ||
| rtlwifi | ||
| rts5208 | ||
| sm750fb | ||
| speakup | ||
| unisys | ||
| vboxvideo | ||
| vc04_services | ||
| vme | ||
| vt6655 | ||
| vt6656 | ||
| wilc1000 | ||
| wlan-ng | ||
| Kconfig | ||
| Makefile | ||