Commits
Niklas Cassel committed 9c18c065c30
PCI: dwc: Fix find_next_bit() usage commit 1137e61dcb99f7f8b54e77ed83f68b5b485a3e34 upstream. find_next_bit() takes a parameter of size long, and performs arithmetic that assumes that the argument is of size long. Therefore we cannot pass a u32, since this will cause find_next_bit() to read outside the stack buffer and will produce the following print: BUG: KASAN: stack-out-of-bounds in find_next_bit+0x38/0xb0 Fixes: 1b497e6493c4 ("PCI: dwc: Fix uninitialized variable in dw_handle_msi_irq()") Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Niklas Cassel <niklas.cassel@linaro.org> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Andrew Murray <andrew.murray@arm.com> Acked-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>