> This was addressed/fixed by the below patch, though that one doesn't
> the first "file" variable check.
I don't believe the first file variable can in fact be NULL, so my check was
unnecessary. Pleased to see this has been fixed, we can abandon my patch now.
Paul
Below patch will cause NULL ptr dereferences if the optional filenames
are not present.
Fixes: ef3ba87cb7c9 (um: ubd: Set device serial attribute from cmdline)
Signed-off-by: Paul Lawrence
---
arch/um/drivers/ubd_kern.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a
The snapshot target could be hacked so that it remembers space trimmed
with REQ_OP_DISCARD and won't reallocate these blocks.
But I suspect that running discard over the whole device would degrade
performance more than copying some unneeded data.
How much data do you intend to backup with thi
-by: Paul Lawrence
Cc: Alasdair Kergon
Cc: Mike Snitzer
Cc: dm-de...@redhat.com
Cc: Jonathan Corbet
Cc: Shaohua Li
Cc: linux-...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-r...@vger.kernel.org
---
Documentation/device-mapper/dm-bow.txt | 103 +++
drivers/md/Kconfig
ned-off-by: Paul Lawrence
Cc: # 4.9.x
Cc: # 4.4.x
Cc: # 3.18.x: ce8a3a9e76d01
Cc: # 3.18.x
Cc: Ben Hutchings
---
drivers/staging/android/ashmem.c | 8 +++-
1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/drivers/staging/android/ashmem.c b/drivers/staging/android/ashm
.
Signed-off-by: Alexander Potapenko
[ghackm...@google.com: fix memset() parameters, and tweak
commit message to describe new callbacks]
Signed-off-by: Greg Hackmann
Signed-off-by: Paul Lawrence
---
mm/kasan/kasan.c | 15 +++
1 file changed, 15 insertions(+)
diff --git a/mm/kasan
Signed-off-by: Greg Hackmann
Signed-off-by: Paul Lawrence
---
lib/test_kasan.c | 22 ++
1 file changed, 22 insertions(+)
diff --git a/lib/test_kasan.c b/lib/test_kasan.c
index ef1a3ac1397e..2724f86c4cef 100644
--- a/lib/test_kasan.c
+++ b/lib/test_kasan.c
@@ -472,6 +472,26
For now we can hard-code ASAN ABI level 5, since historical clang builds
can't build the kernel anyway. We also need to emulate gcc's
__SANITIZE_ADDRESS__ flag, or memset() calls won't be instrumented.
Signed-off-by: Greg Hackmann
Signed-off-by: Paul Lawrence
---
include
f the
dynamic stack area, so unpoisoning is simpler.
Signed-off-by: Greg Hackmann
Signed-off-by: Paul Lawrence
---
mm/kasan/kasan.c | 34 ++
mm/kasan/kasan.h | 8
mm/kasan/report.c | 4
scripts/Makefile.kasan | 3 ++-
4 files change
) to
enable all KASAN features.
Signed-off-by: Andrey Ryabinin
Signed-off-by: Paul Lawrence
---
scripts/Makefile.kasan | 29 ++---
1 file changed, 18 insertions(+), 11 deletions(-)
diff --git a/scripts/Makefile.kasan b/scripts/Makefile.kasan
index 1ce7115aa499..d5a
tests for alloca poisoning
No change
[PATCH v3 5/5] kasan: added functions for unpoisoning stack variables
No change
Paul Lawrence (5):
kasan: add compiler support for clang
kasan/Makefile: Support LLVM style asan parameters.
kasan: support alloca() poisoning
kasan: Add tests for
LLVM doesn't understand GCC-style paramters ("--param asan-foo=bar"),
thus we currently we don't use inline/globals/stack instrumentation
when building the kernel with clang.
Add support for LLVM-style parameters ("-mllvm -asan-foo=bar") to
enable all KASAN features.
Signed-off-by: Andrey Ryabini
.
Signed-off-by: Alexander Potapenko
[ghackm...@google.com: fix memset() parameters, and tweak
commit message to describe new callbacks]
Signed-off-by: Greg Hackmann
Signed-off-by: Paul Lawrence
---
mm/kasan/kasan.c | 15 +++
1 file changed, 15 insertions(+)
diff --git a/mm/kasan
Signed-off-by: Greg Hackmann
Signed-off-by: Paul Lawrence
---
lib/test_kasan.c | 22 ++
1 file changed, 22 insertions(+)
diff --git a/lib/test_kasan.c b/lib/test_kasan.c
index ef1a3ac1397e..2724f86c4cef 100644
--- a/lib/test_kasan.c
+++ b/lib/test_kasan.c
@@ -472,6 +472,26
f the
dynamic stack area, so unpoisoning is simpler.
Signed-off-by: Greg Hackmann
Signed-off-by: Paul Lawrence
---
mm/kasan/kasan.c | 34 ++
mm/kasan/kasan.h | 8
mm/kasan/report.c | 4
scripts/Makefile.kasan | 3 ++-
4 files change
kasan: support alloca() poisoning
Added alloca makefile option here
Modified to only unpoison the last block
[PATCH v3 4/5] kasan: Add tests for alloca poisoning
No change
[PATCH v3 5/5] kasan: added functions for unpoisoning stack variables
No change
Paul Lawrence (5):
kasan: add com
For now we can hard-code ASAN ABI level 5, since historical clang builds
can't build the kernel anyway. We also need to emulate gcc's
__SANITIZE_ADDRESS__ flag, or memset() calls won't be instrumented.
Signed-off-by: Greg Hackmann
Signed-off-by: Paul Lawrence
---
include
Use cc-option to figure out whether the compiler's sanitizer uses
LLVM-style parameters ("-mllvm -asan-foo=bar") or GCC-style parameters
("--param asan-foo=bar").
Signed-off-by: Greg Hackmann
Signed-off-by: Paul Lawrence
---
sc
Signed-off-by: Greg Hackmann
Signed-off-by: Paul Lawrence
lib/test_kasan.c | 22 ++
1 file changed, 22 insertions(+)
diff --git a/lib/test_kasan.c b/lib/test_kasan.c
index ef1a3ac1397e..2724f86c4cef 100644
--- a/lib/test_kasan.c
+++ b/lib/test_kasan.c
@@ -472,6 +472,26
.
Signed-off-by: Alexander Potapenko
[ghackm...@google.com: fix memset() parameters, and tweak
commit message to describe new callbacks]
Signed-off-by: Greg Hackmann
Signed-off-by: Paul Lawrence
---
mm/kasan/kasan.c | 15 +++
1 file changed, 15 insertions(+)
diff --git a/mm/kasan
For now we can hard-code ASAN ABI level 5, since historical clang builds
can't build the kernel anyway. We also need to emulate gcc's
__SANITIZE_ADDRESS__ flag, or memset() calls won't be instrumented.
Signed-off-by: Greg Hackmann
Signed-off-by: Paul Lawrence
---
include
ld be rejected if one was not known.
Also if both were empty, CFLAGS_KASAN would be " " which mostly
disabled kasan on older compilers.
Added support for gcc, tested on ToT compiler
[PATCH v2 5/5] kasan: add compiler support for clang
Made comments single line
Paul Lawrence (5):
f the
dynamic stack area, so unpoisoning is simpler.
Signed-off-by: Greg Hackmann
Signed-off-by: Paul Lawrence
mm/kasan/kasan.c | 32
mm/kasan/kasan.h | 8
mm/kasan/report.c | 4
3 files changed, 44 insertions(+)
diff --git a/mm/kasan/kasan.c b/mm/
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