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Sat, 15 Jun 2024 20:06:02 -0700 (PDT) Date: Sat, 15 Jun 2024 20:06:02 -0700 In-Reply-To: <20240616023951.1250-1-hdanton@sina.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000fe2d22061af9206f@google.com> Subject: Re: [syzbot] [nilfs?] [mm?] KASAN: slab-use-after-free Read in lru_add_fn From: syzbot To: hdanton@sina.com, jack@suse.cz, konishi.ryusuke@gmail.com, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-nilfs@vger.kernel.org, syzkaller-bugs@googlegroups.com, willy@infradead.org Content-Type: text/plain; charset="UTF-8" X-Stat-Signature: dk6c5otrhw7pyyspop7fsk7hy3tperty X-Rspamd-Queue-Id: ED98F18000C X-Rspam-User: X-Rspamd-Server: rspam08 X-HE-Tag: 1718507163-342357 X-HE-Meta: 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 LZ8v+gcv 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 RfyYMrYI WKFdlkSbm54= 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: Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: kernel BUG in __filemap_add_folio NILFS (loop0): I/O error reading meta-data file (ino=3, block-offset=0) NILFS (loop0): I/O error reading meta-data file (ino=3, block-offset=0) NILFS (loop0): disposed unprocessed dirty file(s) when stopping log writer ------------[ cut here ]------------ kernel BUG at mm/filemap.c:873! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 1 PID: 5321 Comm: syz-executor Not tainted 6.10.0-rc3-syzkaller-dirty #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 RIP: 0010:__filemap_add_folio+0xd1d/0xe80 mm/filemap.c:873 Code: 37 8b 4c 89 f7 e8 23 68 10 00 90 0f 0b e8 9b 14 ce ff 48 c7 c6 e0 92 37 8b 4c 89 f7 e8 0c 68 10 00 90 0f 0b e8 84 14 ce ff 90 <0f> 0b e8 7c 14 ce ff 90 0f 0b 90 e9 24 fb ff ff e8 6e 14 ce ff 48 RSP: 0018:ffffc900035773f0 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff81bfc8cd RDX: ffff888023052440 RSI: ffffffff81bfd0cc RDI: 0000000000000001 RBP: ffff88803233a9f0 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000003 R12: ffffc90003577468 R13: 0000000000000000 R14: ffffea0000b3f7c0 R15: 0000000000000000 FS: 000055556c846480(0000) GS:ffff88806b100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe311b9ff8 CR3: 000000001ae02000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: filemap_add_folio+0x110/0x220 mm/filemap.c:971 __filemap_get_folio+0x455/0xa80 mm/filemap.c:1959 filemap_grab_folio include/linux/pagemap.h:697 [inline] nilfs_grab_buffer+0xc3/0x370 fs/nilfs2/page.c:57 nilfs_mdt_submit_block+0x9f/0x870 fs/nilfs2/mdt.c:121 nilfs_mdt_read_block+0xa4/0x3b0 fs/nilfs2/mdt.c:176 nilfs_mdt_get_block+0xdb/0xb90 fs/nilfs2/mdt.c:251 nilfs_palloc_get_block+0xb5/0x300 fs/nilfs2/alloc.c:217 nilfs_palloc_get_entry_block+0x165/0x1b0 fs/nilfs2/alloc.c:319 nilfs_ifile_delete_inode+0x1e6/0x260 fs/nilfs2/ifile.c:109 nilfs_evict_inode+0x294/0x550 fs/nilfs2/inode.c:950 evict+0x2ed/0x6c0 fs/inode.c:667 iput_final fs/inode.c:1741 [inline] iput.part.0+0x5a8/0x7f0 fs/inode.c:1767 iput+0x5c/0x80 fs/inode.c:1757 nilfs_put_root+0xae/0xe0 fs/nilfs2/the_nilfs.c:925 nilfs_segctor_destroy fs/nilfs2/segment.c:2788 [inline] nilfs_detach_log_writer+0x5ef/0xaa0 fs/nilfs2/segment.c:2850 nilfs_put_super+0x43/0x1b0 fs/nilfs2/super.c:498 generic_shutdown_super+0x159/0x3d0 fs/super.c:642 kill_block_super+0x3b/0x90 fs/super.c:1676 deactivate_locked_super+0xbe/0x1a0 fs/super.c:473 deactivate_super+0xde/0x100 fs/super.c:506 cleanup_mnt+0x222/0x450 fs/namespace.c:1267 task_work_run+0x14e/0x250 kernel/task_work.c:180 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop kernel/entry/common.c:114 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x278/0x2a0 kernel/entry/common.c:218 do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f70d447e217 Code: b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b0 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffe311ba288 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000064 RCX: 00007f70d447e217 RDX: 0000000000000200 RSI: 0000000000000009 RDI: 00007ffe311bb430 RBP: 00007f70d44c8336 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000100 R11: 0000000000000202 R12: 00007ffe311bb430 R13: 00007f70d44c8336 R14: 000055556c846430 R15: 0000000000000005 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__filemap_add_folio+0xd1d/0xe80 mm/filemap.c:873 Code: 37 8b 4c 89 f7 e8 23 68 10 00 90 0f 0b e8 9b 14 ce ff 48 c7 c6 e0 92 37 8b 4c 89 f7 e8 0c 68 10 00 90 0f 0b e8 84 14 ce ff 90 <0f> 0b e8 7c 14 ce ff 90 0f 0b 90 e9 24 fb ff ff e8 6e 14 ce ff 48 RSP: 0018:ffffc900035773f0 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff81bfc8cd RDX: ffff888023052440 RSI: ffffffff81bfd0cc RDI: 0000000000000001 RBP: ffff88803233a9f0 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000003 R12: ffffc90003577468 R13: 0000000000000000 R14: ffffea0000b3f7c0 R15: 0000000000000000 FS: 000055556c846480(0000) GS:ffff88806b000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f70d45a8000 CR3: 000000001ae02000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Tested on: commit: 83a7eefe Linux 6.10-rc3 git tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git console output: https://syzkaller.appspot.com/x/log.txt?x=15608256980000 kernel config: https://syzkaller.appspot.com/x/.config?x=b8786f381e62940f dashboard link: https://syzkaller.appspot.com/bug?extid=d79afb004be235636ee8 compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 patch: https://syzkaller.appspot.com/x/patch.diff?x=147bb012980000