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Re: [PATCH] fb: omap2: dsi: do not copy isr table To: Andreas Kemnade Cc: linux-omap@vger.kernel.org, linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, sashiko-bot@kernel.org References: <20260702-fbomap-uaf-fix-v1-1-6417edf9d3e7@kemnade.info> Content-Language: en-US From: Helge Deller Autocrypt: addr=deller@gmx.de; keydata= xsFNBF3Ia3MBEAD3nmWzMgQByYAWnb9cNqspnkb2GLVKzhoH2QD4eRpyDLA/3smlClbeKkWT HLnjgkbPFDmcmCz5V0Wv1mKYRClAHPCIBIJgyICqqUZo2qGmKstUx3pFAiztlXBANpRECgwJ r+8w6mkccOM9GhoPU0vMaD/UVJcJQzvrxVHO8EHS36aUkjKd6cOpdVbCt3qx8cEhCmaFEO6u CL+k5AZQoABbFQEBocZE1/lSYzaHkcHrjn4cQjc3CffXnUVYwlo8EYOtAHgMDC39s9a7S90L 69l6G73lYBD/Br5lnDPlG6dKfGFZZpQ1h8/x+Qz366Ojfq9MuuRJg7ZQpe6foiOtqwKym/zV dVvSdOOc5sHSpfwu5+BVAAyBd6hw4NddlAQUjHSRs3zJ9OfrEx2d3mIfXZ7+pMhZ7qX0Axlq Lq+B5cfLpzkPAgKn11tfXFxP+hcPHIts0bnDz4EEp+HraW+oRCH2m57Y9zhcJTOJaLw4YpTY GRUlF076vZ2Hz/xMEvIJddRGId7UXZgH9a32NDf+BUjWEZvFt1wFSW1r7zb7oGCwZMy2LI/G 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3Qk7pncirptwpN/4Rk8TD6EtxA3g2Zt5hGJpF1JW+XXKBPVENkjvQaYwaFkI5Uz5cFWn22ueo FuItoieg960e3JV7qHWdmSAmlJB0GqQXF8mHMa6Hf7J0oMVIqvAGWKa6DNq/zmENlkHIENYc0 vjCSXZOybh2A0+Ir9Re6E7rDbqnuWm On 7/2/26 17:50, Andreas Kemnade wrote: > To te able to unregister stuff from isrs, the corresponding table was > copied. Nobody seems to unregister stuff that way, so it does not help. > But there are stack-allocated objects passed to these isrs giving chance= s > of UAF of these objects if irqs are unregistered while they are handled, > so better do not copy that table. >=20 > Suggested-by: sashiko-bot@kernel.org > Signed-off-by: Andreas Kemnade > --- > Fix for drm variant fo driver: > https://lore.kernel.org/lkml/20260702-dsi-uaf-v2-1-dbb4aa0f0b8e@kemnade.= info/ > --- > drivers/video/fbdev/omap2/omapfb/dss/dsi.c | 9 +-------- > 1 file changed, 1 insertion(+), 8 deletions(-) applied. Thanks! Helge