================================================================== BUG: KASAN: vmalloc-out-of-bounds in cleanup_bitmap_list+0x175/0x500 fs/reiserfs/journal.c:231 Read of size 8 at addr ffffc900157f3008 by task syz-executor.2/7402 CPU: 1 PID: 7402 Comm: syz-executor.2 Not tainted 6.6.0-rc4-syzkaller-00012-gce36c8b14987 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 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+0x175/0x1b0 mm/kasan/report.c:588 cleanup_bitmap_list+0x175/0x500 fs/reiserfs/journal.c:231 free_list_bitmaps+0x48/0x1a0 fs/reiserfs/journal.c:249 free_journal_ram+0xf6/0x460 fs/reiserfs/journal.c:1887 do_journal_release fs/reiserfs/journal.c:1960 [inline] journal_release_error+0x7a/0x90 fs/reiserfs/journal.c:1978 reiserfs_fill_super+0x1599/0x2620 fs/reiserfs/super.c:2223 mount_bdev+0x237/0x300 fs/super.c:1629 legacy_get_tree+0xef/0x190 fs/fs_context.c:638 vfs_get_tree+0x8c/0x280 fs/super.c:1750 do_new_mount+0x28f/0xae0 fs/namespace.c:3335 do_mount fs/namespace.c:3675 [inline] __do_sys_mount fs/namespace.c:3884 [inline] __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3861 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f844807e1ea 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:00007f8448de3ee8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f8448de3f80 RCX: 00007f844807e1ea RDX: 0000000020000080 RSI: 0000000020000040 RDI: 00007f8448de3f40 RBP: 0000000020000080 R08: 00007f8448de3f80 R09: 000000000000800c R10: 000000000000800c R11: 0000000000000202 R12: 0000000020000040 R13: 00007f8448de3f40 R14: 000000000000111a R15: 0000000020000300 The buggy address belongs to the virtual mapping at [ffffc900157f3000, ffffc900157f5000) created by: reiserfs_allocate_list_bitmaps+0x50/0x220 fs/reiserfs/journal.c:290 The buggy address belongs to the physical page: page:ffffea00007ada00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1eb68 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 7402, tgid 7399 (syz-executor.2), ts 311640368781, free_ts 305372051723 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x1e6/0x210 mm/page_alloc.c:1536 prep_new_page mm/page_alloc.c:1543 [inline] get_page_from_freelist+0x31db/0x3360 mm/page_alloc.c:3170 __alloc_pages+0x255/0x670 mm/page_alloc.c:4426 __alloc_pages_bulk+0x729/0xd40 mm/page_alloc.c:4374 vm_area_alloc_pages mm/vmalloc.c:3028 [inline] __vmalloc_area_node mm/vmalloc.c:3139 [inline] __vmalloc_node_range+0x798/0x1490 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:290 journal_init+0x2f1/0x2460 fs/reiserfs/journal.c:2740 reiserfs_fill_super+0x1039/0x2620 fs/reiserfs/super.c:2022 mount_bdev+0x237/0x300 fs/super.c:1629 legacy_get_tree+0xef/0x190 fs/fs_context.c:638 vfs_get_tree+0x8c/0x280 fs/super.c:1750 do_new_mount+0x28f/0xae0 fs/namespace.c:3335 do_mount fs/namespace.c:3675 [inline] __do_sys_mount fs/namespace.c:3884 [inline] __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3861 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1136 [inline] free_unref_page_prepare+0x8c3/0x9f0 mm/page_alloc.c:2312 free_unref_page_list+0x596/0x830 mm/page_alloc.c:2451 release_pages+0x2113/0x23f0 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:693 kill_block_super+0x41/0x70 fs/super.c:1646 xfs_kill_sb+0x15/0x50 fs/xfs/xfs_super.c:2026 deactivate_locked_super+0xa4/0x110 fs/super.c:481 cleanup_mnt+0x426/0x4c0 fs/namespace.c:1254 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+0xb1/0x140 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline] syscall_exit_to_user_mode+0x64/0x280 kernel/entry/common.c:296 do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd Memory state around the buggy address: ffffc900157f2f00: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ffffc900157f2f80: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 >ffffc900157f3000: 00 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ^ ffffc900157f3080: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ffffc900157f3100: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ==================================================================