linux

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Helge Deller 2345ef960d parisc: fix mmap_base calculation when stack grows upwards

commit 5f74f820f6fc844b95f9e5e406e0a07d97510420 upstream.

Matoro reported various userspace crashes on the parisc platform with kernel
6.6 and bisected it to commit 3033cd430768 ("parisc: Use generic mmap top-down
layout and brk randomization").

That commit switched parisc to use the common infrastructure to calculate
mmap_base, but missed that the mmap_base() function takes care for
architectures where the stack grows downwards only.

Fix the mmap_base() calculation to include the stack-grows-upwards case
and thus fix the userspace crashes on parisc.

Link: https://lkml.kernel.org/r/ZVH2qeS1bG7/1J/l@p100
Fixes: 3033cd430768 ("parisc: Use generic mmap top-down layout and brk randomization")
Signed-off-by: Helge Deller <deller@gmx.de>
Reported-by: matoro <matoro_mailinglist_kernel@matoro.tk>
Tested-by: matoro <matoro_mailinglist_kernel@matoro.tk>
Cc: <stable@vger.kernel.org>	[6.6+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2023-11-28 17:20:08 +00:00

alpha

Kbuild updates for v6.6

2023-09-05 11:01:47 -07:00

arc

ARC updates for v6.6

2023-09-04 15:38:24 -07:00

arm

ARM: 9320/1: fix stack depot IRQ stack filter

2023-11-28 17:19:43 +00:00

arm64

arm64: dts: qcom: ipq6018: Fix tcsr_mutex register size