================================================================== BUG: KASAN: vmalloc-out-of-bounds in cleanup_bitmap_list+0x175/0x500 fs/reiserfs/journal.c:230 Read of size 8 at addr ffffc90008029008 by task syz-executor.0/18322 CPU: 1 PID: 18322 Comm: syz-executor.0 Not tainted 6.7.0-rc6-syzkaller-00248-g5254c0cbc92d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:364 [inline] print_report+0x163/0x540 mm/kasan/report.c:475 kasan_report+0x142/0x170 mm/kasan/report.c:588 cleanup_bitmap_list+0x175/0x500 fs/reiserfs/journal.c:230 free_list_bitmaps+0x48/0x1a0 fs/reiserfs/journal.c:248 free_journal_ram+0xf8/0x3c0 fs/reiserfs/journal.c:1886 do_journal_release fs/reiserfs/journal.c:1959 [inline] journal_release_error+0x7a/0x90 fs/reiserfs/journal.c:1977 reiserfs_fill_super+0x1599/0x2620 fs/reiserfs/super.c:2223 mount_bdev+0x237/0x300 fs/super.c:1650 legacy_get_tree+0xef/0x190 fs/fs_context.c:662 vfs_get_tree+0x8c/0x2a0 fs/super.c:1771 do_new_mount+0x28f/0xae0 fs/namespace.c:3337 do_mount fs/namespace.c:3677 [inline] __do_sys_mount fs/namespace.c:3886 [inline] __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3863 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x45/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7f5a5e27e3ea Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 09 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f5a5f040ee8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f5a5f040f80 RCX: 00007f5a5e27e3ea RDX: 00000000200000c0 RSI: 0000000020000040 RDI: 00007f5a5f040f40 RBP: 00000000200000c0 R08: 00007f5a5f040f80 R09: 000000000000800c R10: 000000000000800c R11: 0000000000000202 R12: 0000000020000040 R13: 00007f5a5f040f40 R14: 000000000000111f R15: 0000000020000300 The buggy address belongs to the virtual mapping at [ffffc90008029000, ffffc9000802b000) created by: reiserfs_allocate_list_bitmaps+0x50/0x220 fs/reiserfs/journal.c:289 The buggy address belongs to the physical page: page:ffffea00009eb500 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x27ad4 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) page_type: 0xffffffff() raw: 00fff00000000000 0000000000000000 dead000000000122 0000000000000000 raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x102dc2(GFP_HIGHUSER|__GFP_NOWARN|__GFP_ZERO), pid 18322, tgid 18321 (syz-executor.0), ts 617260841586, free_ts 616756446672 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x1e6/0x210 mm/page_alloc.c:1537 prep_new_page mm/page_alloc.c:1544 [inline] get_page_from_freelist+0x33ea/0x3570 mm/page_alloc.c:3312 __alloc_pages+0x255/0x680 mm/page_alloc.c:4568 __alloc_pages_bulk+0x729/0xd40 mm/page_alloc.c:4516 alloc_pages_bulk_array_mempolicy+0x685/0x840 mm/mempolicy.c:2296 vm_area_alloc_pages mm/vmalloc.c:3028 [inline] __vmalloc_area_node mm/vmalloc.c:3139 [inline] __vmalloc_node_range+0x798/0x14a0 mm/vmalloc.c:3320 __vmalloc_node mm/vmalloc.c:3385 [inline] vzalloc+0x79/0x90 mm/vmalloc.c:3458 reiserfs_allocate_list_bitmaps+0x50/0x220 fs/reiserfs/journal.c:289 journal_init+0x2f1/0x2510 fs/reiserfs/journal.c:2734 reiserfs_fill_super+0x1039/0x2620 fs/reiserfs/super.c:2022 mount_bdev+0x237/0x300 fs/super.c:1650 legacy_get_tree+0xef/0x190 fs/fs_context.c:662 vfs_get_tree+0x8c/0x2a0 fs/super.c:1771 do_new_mount+0x28f/0xae0 fs/namespace.c:3337 do_mount fs/namespace.c:3677 [inline] __do_sys_mount fs/namespace.c:3886 [inline] __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3863 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x45/0x110 arch/x86/entry/common.c:83 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1137 [inline] free_unref_page_prepare+0x931/0xa60 mm/page_alloc.c:2347 free_unref_page_list+0x5a0/0x840 mm/page_alloc.c:2533 release_pages+0x2117/0x2400 mm/swap.c:1042 __folio_batch_release+0x84/0x100 mm/swap.c:1062 folio_batch_release include/linux/pagevec.h:83 [inline] mapping_try_invalidate+0x515/0x640 mm/truncate.c:535 generic_shutdown_super+0x13a/0x2c0 fs/super.c:696 kill_block_super+0x44/0x90 fs/super.c:1667 xfs_kill_sb+0x15/0x50 fs/xfs/xfs_super.c:2033 deactivate_locked_super+0xc1/0x130 fs/super.c:484 cleanup_mnt+0x426/0x4c0 fs/namespace.c:1256 task_work_run+0x24a/0x300 kernel/task_work.c:180 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0xde/0x100 kernel/entry/common.c:171 exit_to_user_mode_prepare+0xb1/0x150 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline] syscall_exit_to_user_mode+0x69/0x2a0 kernel/entry/common.c:296 do_syscall_64+0x52/0x110 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x63/0x6b Memory state around the buggy address: ffffc90008028f00: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ffffc90008028f80: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 >ffffc90008029000: 00 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ^ ffffc90008029080: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ffffc90008029100: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ==================================================================