Hello Greg,
-----Original Message----- From: Greg Kroah-Hartman gregkh@linuxfoundation.org Sent: Sunday, July 11, 2021 7:07 PM To: Gabbasov, Andrew Andrew_Gabbasov@mentor.com Cc: Macpaul Lin macpaul.lin@mediatek.com; Eugeniu Rosca erosca@de.adit-jv.com; linux-usb@vger.kernel.org; linux-kernel@vger.kernel.org; stable@vger.kernel.org; Felipe Balbi balbi@kernel.org; Eugeniu Rosca roscaeugeniu@gmail.com; Eddie Hung eddie.hung@mediatek.com Subject: Re: [PATCH v4.14] usb: gadget: f_fs: Fix setting of device and driver data cross-references
On Sun, Jul 11, 2021 at 10:51:30AM -0500, Andrew Gabbasov wrote:
commit ecfbd7b9054bddb12cea07fda41bb3a79a7b0149 upstream.
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Fixes: 4b187fceec3c ("usb: gadget: FunctionFS: add devices management code") Fixes: 3262ad824307 ("usb: gadget: f_fs: Stop ffs_closed NULL pointer dereference") Fixes: cdafb6d8b8da ("usb: gadget: f_fs: Fix use-after-free in ffs_free_inst") Reported-by: Bhuvanesh Surachari bhuvanesh_surachari@mentor.com Tested-by: Eugeniu Rosca erosca@de.adit-jv.com Reviewed-by: Eugeniu Rosca erosca@de.adit-jv.com Signed-off-by: Andrew Gabbasov andrew_gabbasov@mentor.com Link: https://lore.kernel.org/r/20210603171507.22514-1-andrew_gabbasov@mentor.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org [agabbasov: Backported to earlier mount API, resolved context conflicts]
drivers/usb/gadget/function/f_fs.c | 67 ++++++++++++++---------------- 1 file changed, 32 insertions(+), 35 deletions(-)
I also need a 4.19 version of this commit, as you do not want to upgrade to a newer kernel and regress. Can you also provide that?
If I correctly understand, this particular file has a very minor difference between 4.14 and 4.19. So, this same patch for 4.14 can be just applied / cherry-picked cleanly on top of latest stable 4.19.
Thanks!
Best regards, Andrew