[PATCH] io_uring/rsrc: clean up buffer cloning arg validation (for 6.18-stable tree)

[PATCH] io_uring/rsrc: clean up buffer cloning arg validation (for 6.18-stable tree)

[Joanne Koong]

Commit id upstream: b8201b50e403815f941d1c6581a27fdbfe7d0fd4
("io_uring/rsrc: clean up buffer cloning arg validation")
Link to the patch:
https://lore.kernel.org/io-uring/20251204215116.2642044-1-joannelkoong@gmail.com/#t
Kernel version to apply it to: 6.18-stable tree

Hi stable@,

Chris Mason recently detected that this patch is a required dependency
for commit 5b804b8f1e0d ("io_uring/rsrc: fix lost entries after cloned
range") in the 6.18-stable tree [1]. Without this patch, the changes
in commit 5b804b8f1e0d use an incorrect value for nbufs when it
assigns "i = nbufs" [2].

Could you please apply this patch to the 6.18-stable tree as a
dependency fix needed for commit 5b804b8f1e0d?

Thanks,
Joanne

[1] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-6.18.y&id=5b804b8f1e0d66413774d43f7a4b78bba0ca6272
[2] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/tree/io_uring/rsrc.c?h=linux-6.18.y#n1252.

Re: [PATCH] io_uring/rsrc: clean up buffer cloning arg validation (for 6.18-stable tree)

[Jens Axboe]

On 2/20/26 11:19 AM, Joanne Koong wrote:
> Commit id upstream: b8201b50e403815f941d1c6581a27fdbfe7d0fd4
> ("io_uring/rsrc: clean up buffer cloning arg validation")
> Link to the patch:
> https://lore.kernel.org/io-uring/20251204215116.2642044-1-joannelkoong@gmail.com/#t
> Kernel version to apply it to: 6.18-stable tree
> 
> Hi stable@,
> 
> Chris Mason recently detected that this patch is a required dependency
> for commit 5b804b8f1e0d ("io_uring/rsrc: fix lost entries after cloned
> range") in the 6.18-stable tree [1]. Without this patch, the changes
> in commit 5b804b8f1e0d use an incorrect value for nbufs when it
> assigns "i = nbufs" [2].
> 
> Could you please apply this patch to the 6.18-stable tree as a
> dependency fix needed for commit 5b804b8f1e0d?	
> 
> Thanks,
> Joanne
> 
> [1] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-6.18.y&id=5b804b8f1e0d66413774d43f7a4b78bba0ca6272
> [2] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/tree/io_uring/rsrc.c?h=linux-6.18.y#n1252.

FWIW, this is approved on my end. CC Greg.


-- 
Jens Axboe

Re: [PATCH] io_uring/rsrc: clean up buffer cloning arg validation (for 6.18-stable tree)

[Greg Kroah-Hartman]

On Sun, Feb 22, 2026 at 08:33:24AM -0700, Jens Axboe wrote:
> On 2/20/26 11:19 AM, Joanne Koong wrote:
> > Commit id upstream: b8201b50e403815f941d1c6581a27fdbfe7d0fd4
> > ("io_uring/rsrc: clean up buffer cloning arg validation")
> > Link to the patch:
> > https://lore.kernel.org/io-uring/20251204215116.2642044-1-joannelkoong@gmail.com/#t
> > Kernel version to apply it to: 6.18-stable tree
> > 
> > Hi stable@,
> > 
> > Chris Mason recently detected that this patch is a required dependency
> > for commit 5b804b8f1e0d ("io_uring/rsrc: fix lost entries after cloned
> > range") in the 6.18-stable tree [1]. Without this patch, the changes
> > in commit 5b804b8f1e0d use an incorrect value for nbufs when it
> > assigns "i = nbufs" [2].
> > 
> > Could you please apply this patch to the 6.18-stable tree as a
> > dependency fix needed for commit 5b804b8f1e0d?	
> > 
> > Thanks,
> > Joanne
> > 
> > [1] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-6.18.y&id=5b804b8f1e0d66413774d43f7a4b78bba0ca6272
> > [2] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/tree/io_uring/rsrc.c?h=linux-6.18.y#n1252.
> 
> FWIW, this is approved on my end. CC Greg.

Now queued up, thanks.

greg k-h