Hello:
This patch was applied to jaegeuk/f2fs.git (dev)
by Jaegeuk Kim <[email protected]>:
On Fri, 30 Dec 2022 23:43:32 +0800 you wrote:
> With below two cases, it will cause NULL pointer dereference when
> accessing SM_I(sbi)->fcc_info in f2fs_issue_flush().
>
> a) If kthread_run() fails in f2fs_create_flush_cmd_control(), it will
> release SM_I(sbi)->fcc_info,
>
> - mount -o noflush_merge /dev/vda /mnt/f2fs
> - mount -o remount,flush_merge /dev/vda /mnt/f2fs -- kthread_run() fails
> - dd if=/dev/zero of=/mnt/f2fs/file bs=4k count=1 conv=fsync
>
> [...]
Here is the summary with links:
- [f2fs-dev] f2fs: fix to avoid NULL pointer dereference in f2fs_issue_flush()
https://git.kernel.org/jaegeux/f2fs/c/b3d83066cbeb
You are awesome, thank you!
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