================================================================== BUG: KASAN: vmalloc-out-of-bounds in cleanup_bitmap_list.part.0+0x4dd/0x5c0 fs/reiserfs/journal.c:231 Read of size 8 at addr ffffc90000b1e008 by task syz-executor500/5036 CPU: 0 PID: 5036 Comm: syz-executor500 Not tainted 6.5.0-syzkaller-09276-g99d99825fc07 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:364 [inline] print_report+0xc4/0x620 mm/kasan/report.c:475 kasan_report+0xda/0x110 mm/kasan/report.c:588 cleanup_bitmap_list.part.0+0x4dd/0x5c0 fs/reiserfs/journal.c:231 cleanup_bitmap_list fs/reiserfs/journal.c:227 [inline] free_list_bitmaps fs/reiserfs/journal.c:249 [inline] free_journal_ram+0x160/0x650 fs/reiserfs/journal.c:1887 do_journal_release fs/reiserfs/journal.c:1960 [inline] journal_release+0x2a4/0x660 fs/reiserfs/journal.c:1971 reiserfs_put_super+0xe9/0x5c0 fs/reiserfs/super.c:616 generic_shutdown_super+0x161/0x3c0 fs/super.c:693 kill_block_super+0x3b/0x70 fs/super.c:1646 deactivate_locked_super+0x9a/0x170 fs/super.c:481 deactivate_super+0xde/0x100 fs/super.c:514 cleanup_mnt+0x222/0x3d0 fs/namespace.c:1254 task_work_run+0x14d/0x240 kernel/task_work.c:179 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0xa99/0x2a20 kernel/exit.c:874 do_group_exit+0xd4/0x2a0 kernel/exit.c:1024 __do_sys_exit_group kernel/exit.c:1035 [inline] __se_sys_exit_group kernel/exit.c:1033 [inline] __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1033 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f143ed73809 Code: Unable to access opcode bytes at 0x7f143ed737df. RSP: 002b:00007fffe6a757e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f143ed73809 RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 RBP: 00007f143edf02d0 R08: ffffffffffffffb8 R09: 00007fffe6a758c0 R10: 00007fffe6a758c0 R11: 0000000000000246 R12: 00007f143edf02d0 R13: 0000000000000000 R14: 00007f143edf1040 R15: 00007f143ed41d40 The buggy address belongs to the virtual mapping at [ffffc90000b1e000, ffffc90000b20000) created by: reiserfs_allocate_list_bitmaps+0x58/0x1c0 fs/reiserfs/journal.c:290 The buggy address belongs to the physical page: page:ffffea0001d05400 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x74150 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 0x2dc2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN|__GFP_ZERO), pid 5036, tgid 5036 (syz-executor500), ts 56279616304, free_ts 45227057643 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x2cf/0x340 mm/page_alloc.c:1536 prep_new_page mm/page_alloc.c:1543 [inline] get_page_from_freelist+0x10a9/0x31e0 mm/page_alloc.c:3183 __alloc_pages+0x1d0/0x4a0 mm/page_alloc.c:4439 __alloc_pages_bulk+0x77a/0x1110 mm/page_alloc.c:4387 alloc_pages_bulk_array_mempolicy+0x1ca/0x370 mm/mempolicy.c:2394 vm_area_alloc_pages mm/vmalloc.c:3028 [inline] __vmalloc_area_node mm/vmalloc.c:3139 [inline] __vmalloc_node_range+0xd08/0x1540 mm/vmalloc.c:3320 __vmalloc_node mm/vmalloc.c:3385 [inline] vzalloc+0x6b/0x80 mm/vmalloc.c:3458 reiserfs_allocate_list_bitmaps+0x58/0x1c0 fs/reiserfs/journal.c:290 journal_init+0x3e2/0x64b0 fs/reiserfs/journal.c:2740 reiserfs_fill_super+0xcc6/0x3150 fs/reiserfs/super.c:2022 mount_bdev+0x1f3/0x2e0 fs/super.c:1629 legacy_get_tree+0x109/0x220 fs/fs_context.c:638 vfs_get_tree+0x8c/0x370 fs/super.c:1750 do_new_mount fs/namespace.c:3335 [inline] path_mount+0x1492/0x1ed0 fs/namespace.c:3662 do_mount fs/namespace.c:3675 [inline] __do_sys_mount fs/namespace.c:3884 [inline] __se_sys_mount fs/namespace.c:3861 [inline] __x64_sys_mount+0x293/0x310 fs/namespace.c:3861 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 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+0x476/0xa40 mm/page_alloc.c:2312 free_unref_page+0x33/0x3b0 mm/page_alloc.c:2405 __folio_put_small mm/swap.c:106 [inline] __folio_put+0xc3/0x110 mm/swap.c:129 folio_put include/linux/mm.h:1475 [inline] put_page include/linux/mm.h:1544 [inline] anon_pipe_buf_release+0x3fa/0x4b0 fs/pipe.c:138 pipe_buf_release include/linux/pipe_fs_i.h:203 [inline] pipe_read+0x635/0x1270 fs/pipe.c:324 call_read_iter include/linux/fs.h:1979 [inline] new_sync_read fs/read_write.c:389 [inline] vfs_read+0x7ef/0x930 fs/read_write.c:470 ksys_read+0x1f0/0x250 fs/read_write.c:613 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd Memory state around the buggy address: ffffc90000b1df00: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ffffc90000b1df80: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 >ffffc90000b1e000: 00 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ^ ffffc90000b1e080: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ffffc90000b1e100: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ==================================================================