Re: [PATCH] ext4: fix another off-by-one fsmap error on 1k block filesystems

[Theodore Ts'o]

On Thu, 16 Feb 2023 10:55:48 -0800, Darrick J. Wong wrote:
> From: Darrick J. Wong <djwong@xxxxxxxxxx>
> 
> Apparently syzbot figured out that issuing this FSMAP call:
> 
> struct fsmap_head cmd = {
> 	.fmh_count	= ...;
> 	.fmh_keys	= {
> 		{ .fmr_device = /* ext4 dev */, .fmr_physical = 0, },
> 		{ .fmr_device = /* ext4 dev */, .fmr_physical = 0, },
> 	},
> ...
> };
> ret = ioctl(fd, FS_IOC_GETFSMAP, &cmd);
> 
> [...]

Applied, thanks!

[1/1] ext4: fix another off-by-one fsmap error on 1k block filesystems
      commit: c993799baf9c5861f8df91beb80e1611b12efcbd

Best regards,
-- 
Theodore Ts'o <tytso@xxxxxxx>