================================================================== BUG: KASAN: vmalloc-out-of-bounds in cleanup_bitmap_list.part.0+0x4ac/0x5f0 fs/reiserfs/journal.c:231 Read of size 8 at addr ffffc9000308c008 by task syz-executor.0/22389 CPU: 1 PID: 22389 Comm: syz-executor.0 Not tainted 6.4.0-rc5-syzkaller-00178-g33f2b5785a2b #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd9/0x150 lib/dump_stack.c:106 print_address_description.constprop.0+0x2c/0x3c0 mm/kasan/report.c:351 print_report mm/kasan/report.c:462 [inline] kasan_report+0x11c/0x130 mm/kasan/report.c:572 cleanup_bitmap_list.part.0+0x4ac/0x5f0 fs/reiserfs/journal.c:231 cleanup_bitmap_list fs/reiserfs/journal.c:227 [inline] cleanup_freed_for_journal_list fs/reiserfs/journal.c:570 [inline] flush_commit_list.isra.0+0x114f/0x1e70 fs/reiserfs/journal.c:1142 flush_journal_list.isra.0+0x24f/0x1f10 fs/reiserfs/journal.c:1391 flush_used_journal_lists.isra.0+0x330/0x580 fs/reiserfs/journal.c:1829 do_journal_end+0x33b8/0x4af0 fs/reiserfs/journal.c:4342 do_journal_begin_r+0x9f5/0x10e0 fs/reiserfs/journal.c:3113 journal_begin+0x166/0x400 fs/reiserfs/journal.c:3253 reiserfs_fill_super+0x1c2d/0x2eb0 fs/reiserfs/super.c:2104 mount_bdev+0x358/0x420 fs/super.c:1380 legacy_get_tree+0x109/0x220 fs/fs_context.c:610 vfs_get_tree+0x8d/0x350 fs/super.c:1510 do_new_mount fs/namespace.c:3039 [inline] path_mount+0x134b/0x1e40 fs/namespace.c:3369 do_mount fs/namespace.c:3382 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount fs/namespace.c:3568 [inline] __x64_sys_mount+0x283/0x300 fs/namespace.c:3568 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fd57648d69a Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fd5772a7f88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00000000000010ec RCX: 00007fd57648d69a RDX: 0000000020001100 RSI: 0000000020001140 RDI: 00007fd5772a7fe0 RBP: 00007fd5772a8020 R08: 00007fd5772a8020 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020001100 R13: 0000000020001140 R14: 00007fd5772a7fe0 R15: 0000000020001180 The buggy address belongs to the virtual mapping at [ffffc9000308c000, ffffc9000308e000) created by: reiserfs_allocate_list_bitmaps+0x58/0x1d0 fs/reiserfs/journal.c:290 The buggy address belongs to the physical page: page:ffffea0001706d40 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5c1b5 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 22389, tgid 22388 (syz-executor.0), ts 1885115779168, free_ts 1879428191871 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x2db/0x350 mm/page_alloc.c:1731 prep_new_page mm/page_alloc.c:1738 [inline] get_page_from_freelist+0xf41/0x2c00 mm/page_alloc.c:3502 __alloc_pages+0x1cb/0x4a0 mm/page_alloc.c:4768 __alloc_pages_bulk+0x7e3/0x1360 mm/page_alloc.c:4716 alloc_pages_bulk_array_mempolicy+0x1b7/0x360 mm/mempolicy.c:2374 vm_area_alloc_pages mm/vmalloc.c:2974 [inline] __vmalloc_area_node mm/vmalloc.c:3085 [inline] __vmalloc_node_range+0xe69/0x14a0 mm/vmalloc.c:3257 __vmalloc_node mm/vmalloc.c:3322 [inline] vzalloc+0x6b/0x80 mm/vmalloc.c:3395 reiserfs_allocate_list_bitmaps+0x58/0x1d0 fs/reiserfs/journal.c:290 journal_init+0x3d2/0x64b0 fs/reiserfs/journal.c:2733 reiserfs_fill_super+0xc5b/0x2eb0 fs/reiserfs/super.c:2022 mount_bdev+0x358/0x420 fs/super.c:1380 legacy_get_tree+0x109/0x220 fs/fs_context.c:610 vfs_get_tree+0x8d/0x350 fs/super.c:1510 do_new_mount fs/namespace.c:3039 [inline] path_mount+0x134b/0x1e40 fs/namespace.c:3369 do_mount fs/namespace.c:3382 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount fs/namespace.c:3568 [inline] __x64_sys_mount+0x283/0x300 fs/namespace.c:3568 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 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:1302 [inline] free_unref_page_prepare+0x62e/0xcb0 mm/page_alloc.c:2564 free_unref_page+0x33/0x370 mm/page_alloc.c:2659 slab_destroy mm/slab.c:1612 [inline] slabs_destroy+0x85/0xc0 mm/slab.c:1632 cache_flusharray mm/slab.c:3360 [inline] ___cache_free+0x2ae/0x3d0 mm/slab.c:3423 qlink_free mm/kasan/quarantine.c:166 [inline] qlist_free_all+0x4f/0x1a0 mm/kasan/quarantine.c:185 kasan_quarantine_reduce+0x195/0x220 mm/kasan/quarantine.c:292 __kasan_slab_alloc+0x63/0x90 mm/kasan/common.c:305 kasan_slab_alloc include/linux/kasan.h:186 [inline] slab_post_alloc_hook mm/slab.h:711 [inline] slab_alloc_node mm/slab.c:3256 [inline] slab_alloc mm/slab.c:3265 [inline] __kmem_cache_alloc_lru mm/slab.c:3442 [inline] kmem_cache_alloc+0x1bd/0x3f0 mm/slab.c:3451 getname_flags.part.0+0x50/0x4f0 fs/namei.c:140 getname_flags+0x9e/0xe0 include/linux/audit.h:321 getname fs/namei.c:219 [inline] __do_sys_symlink fs/namei.c:4522 [inline] __se_sys_symlink fs/namei.c:4520 [inline] __x64_sys_symlink+0x5a/0x90 fs/namei.c:4520 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd Memory state around the buggy address: ffffc9000308bf00: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ffffc9000308bf80: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 >ffffc9000308c000: 00 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ^ ffffc9000308c080: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ffffc9000308c100: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ==================================================================