[Devel] [PATCH hci-8.1 1/6] ms/cgroup/dmem: fix NULL pointer dereference when setting max

[no-reply at sashiko.virtuozzo.com]

> From: Chen Ridong <chenridong at huawei.com>
> 
> An issue was triggered:
> 
>  BUG: kernel NULL pointer dereference, address: 0000000000000000
>  #PF: supervisor read access in kernel mode
>  #PF: error_code(0x0000) - not-present page
>  PGD 0 P4D 0
>  Oops: Oops: 0000 [#1] SMP NOPTI
>  CPU: 15 UID: 0 PID: 658 Comm: bash Tainted: 6.19.0-rc6-next-2026012
>  Tainted: [O]=OOT_MODULE
>  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),
>  RIP: 0010:strcmp+0x10/0x30
>  RSP: 0018:ffffc900017f7dc0 EFLAGS: 00000246
>  RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff888107cd4358
> [ ... ]
> Signed-off-by: Tejun Heo <tj at kernel.org>
> (cherry picked from commit 43151f812886be1855d2cba059f9c93e4729460b)
> 
> https://virtuozzo.atlassian.net/browse/VSTOR-152813
> Signed-off-by: Mirian Shilakadze <mirian.shilakadze at virtuozzo.com>

Sashiko has reviewed this patch and found no issues. It looks great!

-- 
Sashiko AI review · https://sashiko.vzint.dev/#/patchset/20261101235155.124059-1-mirian.shilakadze@virtuozzo.com?part=1