Re: [syzbot] BUG: Bad rss-counter state (5)

From: syzbot
Date: Thu May 30 2024 - 13:30:52 EST


syzbot has found a reproducer for the following issue on:

HEAD commit: 4a4be1ad3a6e Revert "vfs: Delete the associated dentry whe..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=17b8eeb4980000
kernel config: https://syzkaller.appspot.com/x/.config?x=bd6024aedb15e15c
dashboard link: https://syzkaller.appspot.com/bug?extid=f2bbbb592debc978d46d
compiler: aarch64-linux-gnu-gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
userspace arch: arm64
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=114401aa980000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=107eb5d2980000

Downloadable assets:
disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/384ffdcca292/non_bootable_disk-4a4be1ad.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/75957361122b/vmlinux-4a4be1ad.xz
kernel image: https://storage.googleapis.com/syzbot-assets/6c766b0ec377/Image-4a4be1ad.gz.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+f2bbbb592debc978d46d@xxxxxxxxxxxxxxxxxxxxxxxxx

BUG: Bad rss-counter state mm:00000000b0f34aa6 type:MM_SWAPENTS val:-78


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