https://github.com/torvalds/linux
We have two race conditions in the probe code which could lead to a null pointer dereference in the interrupt handler. The interrupt handler accesses the clockevent device, which may not yet be registered. First race condition happens when the interrupt handler gets registered before the interrupts get disabled. The second race condition happens when the interrupts get enabled, but the clockevent device is not yet registered. Fix that by disabling the interrupts before we register the interrupt and enable the interrupts after the clockevent device got registered. Reported-by: Gongbae Park <yongbae2@gmail.com> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com> Cc: stable@vger.kernel.org Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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clocksource: mtk: Fix race conditions in probe code
File | Mode | Size |
---|---|---|
Documentation | ||
arch | ||
block | ||
crypto | ||
drivers | ||
firmware | ||
fs | ||
include | ||
init | ||
ipc | ||
kernel | ||
lib | ||
mm | ||
net | ||
samples | ||
scripts | ||
security | ||
sound | ||
tools | ||
usr | ||
virt | ||
.gitignore | -rw-r--r-- | 1.2 KB |
.mailmap | -rw-r--r-- | 4.9 KB |
COPYING | -rw-r--r-- | 18.3 KB |
CREDITS | -rw-r--r-- | 94.0 KB |
Kbuild | -rw-r--r-- | 2.1 KB |
Kconfig | -rw-r--r-- | 252 bytes |
MAINTAINERS | -rw-r--r-- | 298.0 KB |
Makefile | -rw-r--r-- | 53.3 KB |
README | -rw-r--r-- | 18.3 KB |
REPORTING-BUGS | -rw-r--r-- | 7.3 KB |
Computing file changes ...