Jia-Ju Bai ea6b7b1d58 uio: fix a sleep-in-atomic-context bug in uio_dmem_genirq_irqcontrol() ... [ Upstream commit b74351287d ] The driver may sleep while holding a spinlock. The function call path (from bottom to top) in Linux 4.19 is: kernel/irq/manage.c, 523: synchronize_irq in disable_irq drivers/uio/uio_dmem_genirq.c, 140: disable_irq in uio_dmem_genirq_irqcontrol drivers/uio/uio_dmem_genirq.c, 134: _raw_spin_lock_irqsave in uio_dmem_genirq_irqcontrol synchronize_irq() can sleep at runtime. To fix this bug, disable_irq() is called without holding the spinlock. This bug is found by a static analysis tool STCheck written by myself. Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com> Link: https://lore.kernel.org/r/20191218094405.6009-1-baijiaju1990@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2020-02-24 08:34:37 +01:00
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Kconfig	…
Makefile	…
uio.c	driver: uio: fix possible use-after-free in __uio_register_device	2020-01-27 14:50:17 +01:00
uio_aec.c	…
uio_cif.c	…
uio_dmem_genirq.c	uio: fix a sleep-in-atomic-context bug in uio_dmem_genirq_irqcontrol()	2020-02-24 08:34:37 +01:00
uio_fsl_elbc_gpcm.c	…
uio_hv_generic.c	…
uio_mf624.c	…
uio_netx.c	…
uio_pci_generic.c	…
uio_pdrv_genirq.c	…
uio_pruss.c	…
uio_sercos3.c	…