On Thu, May 02, 2024 at 09:24:30AM -0700, syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: 9c6ecb3cb6e2 Add linux-next specific files for 20240502 > git tree: linux-next > console output: https://syzkaller.appspot.com/x/log.txt?x=17418c40980000 > kernel config: https://syzkaller.appspot.com/x/.config?x=25ba1e5e9c955f1a > dashboard link: https://syzkaller.appspot.com/bug?extid=9e39ac154d8781441e60 > compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15e4117f180000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10efe5f8980000 > > Downloadable assets: > disk image: https://storage.googleapis.com/syzbot-assets/dc32e924f570/disk-9c6ecb3c.raw.xz > vmlinux: https://storage.googleapis.com/syzbot-assets/7bc65d787cc9/vmlinux-9c6ecb3c.xz > kernel image: https://storage.googleapis.com/syzbot-assets/19096ecded11/bzImage-9c6ecb3c.xz > mounted in repro: https://storage.googleapis.com/syzbot-assets/45e18da02dc2/mount_0.gz > > IMPORTANT: if you fix the issue, please add the following tag to the commit: > Reported-by: syzbot+9e39ac154d8781441e60@xxxxxxxxxxxxxxxxxxxxxxxxx > > reset_page_owner include/linux/page_owner.h:25 [inline] > free_pages_prepare mm/page_alloc.c:1088 [inline] > free_unref_page+0xd22/0xea0 mm/page_alloc.c:2601 > free_contig_range+0x9e/0x160 mm/page_alloc.c:6655 > destroy_args+0x8a/0x890 mm/debug_vm_pgtable.c:1037 > debug_vm_pgtable+0x4be/0x550 mm/debug_vm_pgtable.c:1417 > do_one_initcall+0x248/0x880 init/main.c:1265 > do_initcall_level+0x157/0x210 init/main.c:1327 > do_initcalls+0x3f/0x80 init/main.c:1343 > kernel_init_freeable+0x435/0x5d0 init/main.c:1576 > kernel_init+0x1d/0x2b0 init/main.c:1465 > ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 > ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 > ------------[ cut here ]------------ > kernel BUG at mm/filemap.c:1507! VM_BUG_ON_FOLIO(!folio_test_locked(folio), folio); fs/btrfs/extent_io.c: 1514 if (ret) { 1515 btrfs_mark_ordered_io_finished(BTRFS_I(inode), page, page_start, 1516 PAGE_SIZE, !ret); 1517 mapping_set_error(page->mapping, ret); 1518 } 1519 unlock_page(page); ^^^^ 1520 ASSERT(ret <= 0); 1521 return ret; 1522 } Trying to unlock a page that's not locked. Code last touched by 9783e4deed7291996459858a1a16
