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Usage count = 3 OK so this looks like a broken test box. For belts and suspenders purposes, I confirmed this repro, and the previously reported one both work fine on mm-stable. All is good, the issue is resolved :) just a matter of waiting for the merge to mainline for this. #syz fix: mm/mremap: do not set vrm->vma NULL immediately prior to checking it > > > Tested on: > > commit: e20706d5 mseal sysmap: add arch-support txt > git tree: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git/ mm-stable > console output: https://syzkaller.appspot.com/x/log.txt?x=13bf9998580000 > kernel config: https://syzkaller.appspot.com/x/.config?x=ccf540055069887f > dashboard link: https://syzkaller.appspot.com/bug?extid=e3385f43b2897a19be24 > compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 > > Note: no patches were applied.