Messages in this thread | | | Date | Thu, 24 May 2018 13:05:33 +0200 | From | Pavel Machek <> | Subject | Re: Nokia N900: refcount_t underflow, use after free |
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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 <s-anna@ti.com> > >> 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 <pavel@ucw.cz> > >> Signed-off-by: Suman Anna <s-anna@ti.com> > > > > Tested-by: Pavel Machek <pavel@ucw.cz> > > Pavel > >
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