From mboxrd@z Thu Jan 1 00:00:00 1970 From: pavel@ucw.cz (Pavel Machek) Date: Thu, 24 May 2018 13:05:33 +0200 Subject: Nokia N900: refcount_t underflow, use after free In-Reply-To: <5aa1e2de-96d1-0e88-01ca-49df9ae25457@ti.com> References: <20180308143053.GA17267@amd> <20180308165903.GM5799@atomide.com> <57c9f17b-fc9d-8506-4b5d-70ac216c9248@ti.com> <20180308185046.GA22796@amd> <1dfc05fe-1612-f5a5-b5f1-9038b3cecfe5@arm.com> <1643b74a-62ba-bea6-71c2-a2dd02430463@ti.com> <20180309221834.GA15476@amd> <20180310112634.GA31614@amd> <5aa1e2de-96d1-0e88-01ca-49df9ae25457@ti.com> Message-ID: <20180524110533.GA20599@amd> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi! > >> > >> OK, see if the following fixes the issue for you, only build tested. > > > > Word-wrapped, so I applied by hand. And yes, the oops at boot is > > gone. Thanks! > > Sorry about that, have to check my mail settings. Anyway will post the > patch again, glad that it fixed your issue. Any news here? AFAICT the bug creeped into v4.17-rcX in the meantime... Pavel > regards > Suman > > > > > (Camera still does not work in -next... kills system. Oh well. Lets > > debug that some other day.) > > > >> 8< --------------------- > >> >From bac9a48fb646dc51f2030d676a0dbe3298c3b134 Mon Sep 17 00:00:00 2001 > >> From: Suman Anna > >> Date: Fri, 9 Mar 2018 16:39:59 -0600 > >> Subject: [PATCH] media: omap3isp: fix unbalanced dma_iommu_mapping > >> > >> The OMAP3 ISP driver manages its MMU mappings through the IOMMU-aware > >> ARM DMA backend. The current code creates a dma_iommu_mapping and > >> attaches this to the ISP device, but never detaches the mapping in > >> either the probe failure paths or the driver remove path resulting > >> in an unbalanced mapping refcount and a memory leak. Fix this properly. > >> > >> Reported-by: Pavel Machek > >> Signed-off-by: Suman Anna > > > > Tested-by: Pavel Machek > > Pavel > > -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 181 bytes Desc: Digital signature URL: