]> git.baikalelectronics.ru Git - kernel.git/commit
projects / kernel.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: 88119ef) | patch
um: Fix kernel mode fault condition
authorRichard Weinberger <richard@nod.at>
Sun, 9 Aug 2015 20:26:33 +0000 (22:26 +0200)
committerRichard Weinberger <richard@nod.at>
Mon, 19 Oct 2015 20:53:37 +0000 (22:53 +0200)
commit08356ea7a43fbc5016925bd85ca41a547ab2ed45
tree408b519405bd8545f8da4102ac120db58d2a1f3etree | snapshot
parent88119ef74b0000368d0571718d7441f6c0384f12commit | diff
um: Fix kernel mode fault condition

We have to exclude memory locations <= PAGE_SIZE from
the condition and let the kernel mode fault path catch it.
Otherwise a kernel NULL pointer exception will be reported
as a kernel user space access.

Fixes: a2407c59f91 (um: Catch unprotected user memory access)
Signed-off-by: Richard Weinberger <richard@nod.at>
arch/um/kernel/trap.c diff | blob | history
Linux Kernel Source Tree.