ACK: [SRU][F/J 0/2][N 0/1][PATCH] CVE-2024-44942

[Guoqing Jiang]

Acked-by: Guoqing Jiang <guoqing.jiang at canonical.com>

On 10/2/24 00:49, Massimiliano Pellizzer wrote:
> [Impact]
>
> Add sanity check on F2FS_INLINE_DATA flag in inode during garbage
> collection.
>
> [Fix]
>
> Noble:  Cherry picked the fix commit from linux-6.10.y
> Jammy:  Backported both a prereq and the fix from linux-6.6.y
> Focal:  Backported both a prereq and the fix from linux-6.6.y
> Bionic: In progress
> Xenial: In progress
>
> [Test Case]
>
> Compile and boot tested.
> Moreover tested a f2fs partition using the command:
> stress-ng --hdd 4 --hdd-ops 200000 --iomix 4 --timeout 120s --temp-path /path/to/f2fs
>
> [Where problems could occur]
>
> The fix affects the f2fs filesystem. An issue with this fix may lead to
> kernel crashes, particularly during the garbage collection process.
> Users may also notice filesystem inconsistencies and data corruption.
>
> Chao Yu (2):
>    f2fs: support printk_ratelimited() in f2fs_printk()
>    f2fs: fix to do sanity check on F2FS_INLINE_DATA flag in inode during
>      GC
>
>   fs/f2fs/dir.c   |  5 ++---
>   fs/f2fs/f2fs.h  | 38 ++++++++++++++++++++++----------------
>   fs/f2fs/gc.c    | 10 ++++++++++
>   fs/f2fs/super.c | 11 ++++++++---
>   4 files changed, 42 insertions(+), 22 deletions(-)
>