non-paged memory list_del corruption. next->prev should be ffffea00010a25c8, but was ffffea00010a3788. (next=ffffea00010a3788) ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:67! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 1095 Comm: kworker/u4:10 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Workqueue: btrfs-delalloc btrfs_work_helper RIP: 0010:__list_del_entry_valid_or_report+0x18a/0x190 lib/list_debug.c:65 Code: fc 13 54 fd 43 80 3c 2c 00 74 08 4c 89 ff e8 bd 06 77 fd 49 8b 56 08 48 c7 c7 40 da 27 8c 48 89 de 4c 89 f1 e8 37 47 6d fc 90 <0f> 0b cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc900056875f8 EFLAGS: 00010246 RAX: 000000000000006d RBX: ffffea00010a25c8 RCX: 5b2b99cb42e7cd00 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff1cbd61c R12: 1ffffd40002146f2 R13: dffffc0000000000 R14: ffffea00010a3788 R15: ffffea00010a3790 FS: 0000000000000000(0000) GS:ffff88808ca55000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000020000004b000 CR3: 000000000e54c000 CR4: 0000000000352ef0 Call Trace: __list_del_entry_valid include/linux/list.h:132 [inline] __list_del_entry include/linux/list.h:223 [inline] list_del_init include/linux/list.h:295 [inline] btrfs_alloc_compr_folio+0xa6/0x200 fs/btrfs/compression.c:194 zlib_compress_bio+0x115e/0x2050 fs/btrfs/zlib.c:261 btrfs_compress_bio+0x2c5/0x6b0 fs/btrfs/compression.c:1023 compress_file_range+0x8df/0x19b0 fs/btrfs/inode.c:1023 btrfs_work_helper+0x38c/0xc80 fs/btrfs/async-thread.c:312 process_one_work kernel/workqueue.c:3276 [inline] process_scheduled_works+0xb6e/0x18c0 kernel/workqueue.c:3359 worker_thread+0xa53/0xfc0 kernel/workqueue.c:3440 kthread+0x388/0x470 kernel/kthread.c:436 ret_from_fork+0x51e/0xb90 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__list_del_entry_valid_or_report+0x18a/0x190 lib/list_debug.c:65 Code: fc 13 54 fd 43 80 3c 2c 00 74 08 4c 89 ff e8 bd 06 77 fd 49 8b 56 08 48 c7 c7 40 da 27 8c 48 89 de 4c 89 f1 e8 37 47 6d fc 90 <0f> 0b cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc900056875f8 EFLAGS: 00010246 RAX: 000000000000006d RBX: ffffea00010a25c8 RCX: 5b2b99cb42e7cd00 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000005 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff1cbd61c R12: 1ffffd40002146f2 R13: dffffc0000000000 R14: ffffea00010a3788 R15: ffffea00010a3790 FS: 0000000000000000(0000) GS:ffff88808ca55000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000020000004b000 CR3: 000000000e54c000 CR4: 0000000000352ef0