[Devel] [PATCH hci-8.1 0/2] blk-throttle: fix a host panic setting the first throttle limit on a disk under I/O

[Konstantin Khorenko]

On Mon, 02 Nov 2026 17:12:15 +0100, Denis V. Lunev wrote:
> blk-throttle: fix a host panic setting the first throttle limit on a disk under I/O
> 
> A compute node panicked in submit_bio_noacct() under a vhost-blk worker
> (ASUP-3910):
> 
>   BUG: kernel NULL pointer dereference, address: 000000000000019e
>   RIP: 0010:submit_bio_noacct+0x12e/0x530
>    vhost_blk_req_submit+0xf7/0x1c0 [vhost_blk]
>    vhost_blk_req_handle+0x3b4/0x400 [vhost_blk]
>    vhost_blk_handle_guest_kick+0x1a0/0x2c6 [vhost_blk]
> 
> [...]

Applied to branch-rh10-6.12.0-211.52.1.22.x.vz10-ovz, will be released in rh10-6.12.0-211.52.1.22.16.vz10, thanks!

[1/2] ms/blk-throttle: fix access race during throttle policy activation
      https://bitbucket.org/virtuozzocore/vzkernel.vzs/commits/5252718bd1d0
[2/2] ms/blk-throttle: fix throtl_data leak during disk release
      https://bitbucket.org/virtuozzocore/vzkernel.vzs/commits/fc434d3705a0

-- 
Konstantin Khorenko,
Virtuozzo Linux Kernel Team