Re: [PATCH] fbdev: fix divide error in fb_var_to_videomode

2019-04-02 Thread Shile Zhang
On 2019/4/1 23:25, Bartlomiej Zolnierkiewicz wrote: On 03/29/2019 09:46 PM, Mukesh Ojha wrote: On 3/19/2019 5:50 PM, shile.zh...@linux.alibaba.com wrote: From: Shile Zhang To fix following divide-by-zero error found by Syzkaller: divide error: [#1] SMP PTI CPU: 7 PID: 8447 Comm

Re: [PATCH] fbdev: fix divide error in fb_var_to_videomode

2019-04-01 Thread Bartlomiej Zolnierkiewicz
On 03/29/2019 09:46 PM, Mukesh Ojha wrote: > > On 3/19/2019 5:50 PM, shile.zh...@linux.alibaba.com wrote: >> From: Shile Zhang >> >> To fix following divide-by-zero error found by Syzkaller: >> >>divide error: [#1] SMP PTI >>CPU: 7 PID: 8447 Comm: test Kdump: loaded Not tainted >>

Re: [PATCH] fbdev: fix divide error in fb_var_to_videomode

2019-03-31 Thread Fredrik Noring
Hi Shile, Thank you for your report and patch. On Tue, Mar 26, 2019 at 01:54:13PM +0800, Shile Zhang wrote: > Hi, Bartlomiej, Fredrik, Daniel, > > Could you please help to have a look at this patch? I have tested your patch with a MIPS R5900 system and indeed there is a division by zero, althou

Re: [PATCH] fbdev: fix divide error in fb_var_to_videomode

2019-03-31 Thread Mukesh Ojha
On 3/19/2019 5:50 PM, shile.zh...@linux.alibaba.com wrote: From: Shile Zhang To fix following divide-by-zero error found by Syzkaller: divide error: [#1] SMP PTI CPU: 7 PID: 8447 Comm: test Kdump: loaded Not tainted 4.19.24-8.al7.x86_64 #1 Hardware name: Alibaba Cloud Alibaba Cl

Re: [PATCH] fbdev: fix divide error in fb_var_to_videomode

2019-03-26 Thread Shile Zhang
Hi, Bartlomiej, Fredrik, Daniel, Could you please help to have a look at this patch? Many thanks! -Shile On 2019/3/19 20:20, shile.zh...@linux.alibaba.com wrote: From: Shile Zhang To fix following divide-by-zero error found by Syzkaller: divide error: [#1] SMP PTI CPU: 7 PID: 84

[PATCH] fbdev: fix divide error in fb_var_to_videomode

2019-03-19 Thread shile . zhang
From: Shile Zhang To fix following divide-by-zero error found by Syzkaller: divide error: [#1] SMP PTI CPU: 7 PID: 8447 Comm: test Kdump: loaded Not tainted 4.19.24-8.al7.x86_64 #1 Hardware name: Alibaba Cloud Alibaba Cloud ECS, BIOS rel-1.12.0-0-ga698c8995f-prebuilt.qemu.org 04/01/2