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Wed, 02 Oct 2024 22:22:24 -0700 (PDT) Date: Wed, 02 Oct 2024 22:22:24 -0700 In-Reply-To: <0000000000003eb4720622638663@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <66fe2a10.050a0220.28a3b.0209.GAE@google.com> Subject: Re: [syzbot] [mm?] BUG: corrupted list in do_compact_page From: syzbot To: akpm@linux-foundation.org, linmiaohe@huawei.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, syzkaller-bugs@googlegroups.com, vitaly.wool@konsulko.com Content-Type: text/plain; charset="UTF-8" X-Rspamd-Server: rspam03 X-Rspam-User: X-Rspamd-Queue-Id: 25A8040005 X-Stat-Signature: w33mbzezdcffeebu9nef6hqryanfxoxu X-HE-Tag: 1727932945-224581 X-HE-Meta: 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 GSuaV6X2 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 cBnOgJt5 Gxlyl2cSqkrcRgndh/n6ddFiFRuYE0B2l/EozMFqs16pJCvYjyEd2b62/S/ahRMGCxsKrqZWmgCUhyBRDtovofXO4ktM5GIfH/zvrg07M12/4Ge5sjm3rFcNj6ZBwHshf+D6IsrBp9fEmaJqc7WDWzFWxmKad8RALFNM0TrknIS3nhJt0cjgSNns2zIK7YOj+Y51I3YURK0TlLNpFrY1Oh9r6zpzSoNj X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: syzbot has found a reproducer for the following issue on: HEAD commit: f23aa4c0761a Merge tag 'hid-for-linus-2024090201' of git:/.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=13904b9f980000 kernel config: https://syzkaller.appspot.com/x/.config?x=6248f0ab12f33349 dashboard link: https://syzkaller.appspot.com/bug?extid=b7a3118f6a494674077f compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=174ab580580000 Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7feb34a89c2a/non_bootable_disk-f23aa4c0.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/6b65e6e0b52b/vmlinux-f23aa4c0.xz kernel image: https://storage.googleapis.com/syzbot-assets/5dd7d20b144c/bzImage-f23aa4c0.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+b7a3118f6a494674077f@syzkaller.appspotmail.com list_add corruption. next->prev should be prev (ffffe8fefc9300e0), but was ffff88810a694800. (next=ffff88810868fc00). ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:29! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 3 UID: 0 PID: 69 Comm: kworker/u32:3 Not tainted 6.12.0-rc1-syzkaller-00042-gf23aa4c0761a #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Workqueue: zswap1 compact_page_work RIP: 0010:__list_add_valid_or_report+0xa9/0x100 lib/list_debug.c:29 Code: 9d d1 8b e8 19 93 d8 fc 90 0f 0b 48 c7 c7 60 9e d1 8b e8 0a 93 d8 fc 90 0f 0b 48 89 d9 48 c7 c7 c0 9e d1 8b e8 f8 92 d8 fc 90 <0f> 0b 48 89 f1 48 c7 c7 40 9f d1 8b 48 89 de e8 e3 92 d8 fc 90 0f RSP: 0018:ffffc90000d67bf8 EFLAGS: 00010286 RAX: 0000000000000075 RBX: ffff88810868fc00 RCX: ffffffff816d47e9 RDX: 0000000000000000 RSI: ffffffff816df0e6 RDI: 0000000000000005 RBP: ffff888040c49000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000000 R12: ffff88810868fc00 R13: ffff888040c490b0 R14: ffffea0001031240 R15: ffff888040c49008 FS: 0000000000000000(0000) GS:ffff88806a900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055555b764808 CR3: 000000006493a000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __list_add_valid include/linux/list.h:88 [inline] __list_add include/linux/list.h:150 [inline] list_add include/linux/list.h:169 [inline] add_to_unbuddied mm/z3fold.c:550 [inline] do_compact_page+0x10f2/0x27b0 mm/z3fold.c:772 process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229 process_scheduled_works kernel/workqueue.c:3310 [inline] worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__list_add_valid_or_report+0xa9/0x100 lib/list_debug.c:29 Code: 9d d1 8b e8 19 93 d8 fc 90 0f 0b 48 c7 c7 60 9e d1 8b e8 0a 93 d8 fc 90 0f 0b 48 89 d9 48 c7 c7 c0 9e d1 8b e8 f8 92 d8 fc 90 <0f> 0b 48 89 f1 48 c7 c7 40 9f d1 8b 48 89 de e8 e3 92 d8 fc 90 0f RSP: 0018:ffffc90000d67bf8 EFLAGS: 00010286 RAX: 0000000000000075 RBX: ffff88810868fc00 RCX: ffffffff816d47e9 RDX: 0000000000000000 RSI: ffffffff816df0e6 RDI: 0000000000000005 RBP: ffff888040c49000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000000 R12: ffff88810868fc00 R13: ffff888040c490b0 R14: ffffea0001031240 R15: ffff888040c49008 FS: 0000000000000000(0000) GS:ffff88806a900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055555b764808 CR3: 000000006493a000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing.