Messages in this thread | | | Date | Sat, 28 May 2016 12:15:59 +0300 | From | Dan Carpenter <> | Subject | Re: [PATCH] Revert "i2c: dev: switch from register_chrdev to cdev API" |
| |
On Sat, May 28, 2016 at 11:07:47AM +0200, Wolfram Sang wrote: > This reverts commit d6760b14d4a1243f918d983bba1e35c5a5cd5a6d. When > hitting Linus' tree, buildbots ran additional checks and found boot > problems. Although Dan Carpenter provided an obvious fix already, I > still could not reproduce one problem manually (at least not on a > Saturday morning). So we'll try again later after some more > investigation. >
These kinds of use after frees don't always cause a runtime problem. I found it using static analysis, but I bet you could detect it if you enabled kasan. The other option is to enable PAGE_POISONING?
regards, dan carpenter
| |