On Mon, Mar 22, 2021 at 03:00:37PM +0200, Mike Rapoport wrote:
> On Mon, Mar 22, 2021 at 11:14:37AM +0100, Michal Hocko wrote:
> > Le'ts Andrea and Mike
> >
> > On Fri 19-03-21 22:24:28, Bui Quang Minh wrote:
> > > userfaultfd_writeprotect() use change_p
entry in missing page table entry page fault path.
Signed-off-by: Bui Quang Minh
---
mm/huge_memory.c | 12
mm/memory.c | 10 ++
2 files changed, 22 insertions(+)
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index ae907a9c2050..9bb16a55a48c 100644
--- a/mm/huge_me
On 32-bit architecture, roundup_pow_of_two() can return 0 when the argument
has upper most bit set due to resulting 1UL << 32. Add a check for this
case.
Fixes: d5a3b1f ("bpf: introduce BPF_MAP_TYPE_STACK_TRACE")
Signed-off-by: Bui Quang Minh
---
kernel/bpf/stackmap.c | 2 ++
1
On Wed, Jan 27, 2021 at 11:23:41AM +0700, Bui Quang Minh wrote:
> > * Seems like there are quite a few similar calls scattered around
> > (cpumap, etc.). Did you audit these as well?
>
> I spotted another bug after re-auditting. In hashtab, there ares 2 places
> u
On Tue, Jan 26, 2021 at 09:36:57AM +, Lorenz Bauer wrote:
> On Tue, 26 Jan 2021 at 08:26, Bui Quang Minh wrote:
> >
> > In 32-bit architecture, the result of sizeof() is a 32-bit integer so
> > the expression becomes the multiplication between 2 32-bit integer which
>
.
Signed-off-by: Bui Quang Minh
---
kernel/bpf/devmap.c | 4 ++--
net/core/sock_map.c | 2 +-
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/kernel/bpf/devmap.c b/kernel/bpf/devmap.c
index f6e9c68afdd4..e849c3e8a49f 100644
--- a/kernel/bpf/devmap.c
+++ b/kernel/bpf/devmap.c
@@ -92,7
On Tue, Jan 12, 2021 at 01:42:33PM +0700, Minh Bùi Quang wrote:
> On Mon, Jan 11, 2021 at 9:31 PM Bui Quang Minh
> wrote:
> >
> > On Mon, Jan 11, 2021 at 01:00:31PM +0100, Oliver Neukum wrote:
> > > Am Montag, den 11.01.2021, 10:49 +
Bcc:
Subject: Re: [PATCH v2] can: mcba_usb: Fix memory leak when cancelling urb
Reply-To:
In-Reply-To:
On Tue, Jan 12, 2021 at 01:42:33PM +0700, Minh Bùi Quang wrote:
> On Mon, Jan 11, 2021 at 9:31 PM Bui Quang Minh
> wrote:
> >
> > On Mon, Jan 11, 2021 at 01:00:31PM +0
and free them
later.
Reported-by: syzbot+57281c762a3922e14...@syzkaller.appspotmail.com
Signed-off-by: Bui Quang Minh
---
v1: add memory leak fix when not resubmitting urb
v2: add memory leak fix when failing to resubmit urb
v3: remove usb_free_coherent() calls in interrupt context
drivers/net
On Mon, Jan 11, 2021 at 01:00:31PM +0100, Oliver Neukum wrote:
> Am Montag, den 11.01.2021, 10:49 + schrieb Bui Quang Minh:
> > In mcba_usb_read_bulk_callback(), when we don't resubmit or fails to
> > resubmit the urb, we need to deallocate the transfer buffer that i
In mcba_usb_read_bulk_callback(), when we don't resubmit or fails to
resubmit the urb, we need to deallocate the transfer buffer that is
allocated in mcba_usb_start().
Reported-by: syzbot+57281c762a3922e14...@syzkaller.appspotmail.com
Signed-off-by: Bui Quang Minh
---
v1: add memory leak fix
#syz test: https://github.com/minhbq-99/linux.git
080e743dff190ee8ebec63a13ac33fe8b7e4fc9e
In mcba_usb_read_bulk_callback(), when we don't resubmit the urb, we
need to deallocate the transfer buffer that is allocated in
mcba_usb_start().
Reported-by: syzbot+57281c762a3922e14...@syzkaller.appspotmail.com
Signed-off-by: Bui Quang Minh
---
drivers/net/can/usb/mcba_usb.c | 2 ++
1 file
On Sat, Dec 05, 2020 at 10:15:11AM -0500, Alan Stern wrote:
> On Sat, Dec 05, 2020 at 07:47:01PM +0700, Minh Bùi Quang wrote:
> > Vào Th 6, 4 thg 12, 2020 vào lúc 23:12 Alan Stern
> > đã viết:
> > > Does this initialization end up using less memory than an explicit
> > > memset() call?
> >
> >
This error path
err_add_pdata:
for (i = 0; i < mod_data.num; i++)
kfree(dum[i]);
can be triggered when not all dum's elements are initialized.
Fix this by initializing all dum's elements to NULL.
Signed-off-by: Bui Quang Minh
---
drivers/
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