ACK: [SRU][Mantic][Jammy][PATCH 0/1] CVE-2024-23850

[Tim Gardner]

On 2/28/24 3:24 PM, Bethany Jamison wrote:
> [Impact]
> 
> In btrfs_get_root_ref in fs/btrfs/disk-io.c in the Linux kernel through
> 6.7.1, there can be an assertion failure and crash because a subvolume can
> be read out too soon after its root item is inserted upon subvolume
> creation.
> 
> [Fix]
> 
> Mantic: Clean cherry-pick.
> Jammy: Mantic patch applied cleanly.
> 
> [Test Case]
> 
> Compile and boot tested.
> 
> [Where problems could occur]
> 
> This affects those who use a kernel 6.7.1 and older and make subvolumes
> for btrfs.
> 
> Qu Wenruo (1):
>    btrfs: do not ASSERT() if the newly created subvolume already got read
> 
>   fs/btrfs/disk-io.c | 13 +++++++++++--
>   1 file changed, 11 insertions(+), 2 deletions(-)
> 
Acked-by: Tim Gardner <tim.gardner at canonical.com>
-- 
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Tim Gardner
Canonical, Inc