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Tue, 15 Sep 2020 21:24:04 -0700 (PDT) Date: Tue, 15 Sep 2020 21:24:04 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000047239b05af66a31c@google.com> Subject: Re: general protection fault in unlink_file_vma From: syzbot To: akpm@linux-foundation.org, hdanton@sina.com, linmiaohe@huawei.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" X-Rspamd-Queue-Id: 4DA67180AD807 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam04 X-Bogosity: Ham, tests=bogofilter, spamicity=0.169712, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: kernel panic: Fatal exception RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 R10: 00007ffd30630720 R11: 0000000000000000 R12: 000000000118d940 R13: 000000000118d940 R14: ffffffffffffffff R15: 000000000118cfec FS: 0000000001b47940(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0033 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000001590004 CR3: 0000000021097000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Kernel panic - not syncing: Fatal exception Kernel Offset: disabled Tested on: commit: 8f79400b fix vma_merge gpf git tree: https://github.com/Linmiaohe/linux vma_merge_fix console output: https://syzkaller.appspot.com/x/log.txt?x=153b1d43900000 kernel config: https://syzkaller.appspot.com/x/.config?x=3c5f6ce8d5b68299 dashboard link: https://syzkaller.appspot.com/bug?extid=c5d5a51dcbb558ca0cb5 compiler: gcc (GCC) 10.1.0-syz 20200507