================================================================== BUG: KASAN: vmalloc-out-of-bounds in cleanup_bitmap_list+0x175/0x500 fs/reiserfs/journal.c:230 Read of size 8 at addr ffffc90000af6008 by task syz-executor255/5061 CPU: 0 PID: 5061 Comm: syz-executor255 Not tainted 6.7.0-rc7-syzkaller #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+0x366/0x4d0 fs/reiserfs/journal.c:1959 journal_release+0x1f/0x30 fs/reiserfs/journal.c:1970 reiserfs_put_super+0x23b/0x4c0 fs/reiserfs/super.c:616 generic_shutdown_super+0x13a/0x2c0 fs/super.c:696 kill_block_super+0x44/0x90 fs/super.c:1667 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 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0xa2c/0x2740 kernel/exit.c:869 do_group_exit+0x206/0x2c0 kernel/exit.c:1018 __do_sys_exit_group kernel/exit.c:1029 [inline] __se_sys_exit_group kernel/exit.c:1027 [inline] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1027 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: 0033:0x7f41129f6809 Code: Unable to access opcode bytes at 0x7f41129f67df. RSP: 002b:00007ffcf32fc468 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f41129f6809 RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 RBP: 00007f4112a732d0 R08: ffffffffffffffb8 R09: 00007ffcf32fc540 R10: 00007ffcf32fc540 R11: 0000000000000246 R12: 00007f4112a732d0 R13: 0000000000000000 R14: 00007f4112a74040 R15: 00007f41129c4d40 The buggy address belongs to the virtual mapping at [ffffc90000af6000, ffffc90000af8000) created by: reiserfs_allocate_list_bitmaps+0x50/0x220 fs/reiserfs/journal.c:289 The buggy address belongs to the physical page: page:ffffea0000711880 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1c462 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 5061, tgid 5061 (syz-executor255), ts 56623053350, free_ts 48419622026 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+0x37/0x3f0 mm/page_alloc.c:2487 pipe_buf_release include/linux/pipe_fs_i.h:219 [inline] pipe_update_tail fs/pipe.c:234 [inline] pipe_read+0x6ee/0x13e0 fs/pipe.c:354 call_read_iter include/linux/fs.h:2014 [inline] new_sync_read fs/read_write.c:389 [inline] vfs_read+0x78b/0xb00 fs/read_write.c:470 ksys_read+0x1a0/0x2c0 fs/read_write.c:613 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 Memory state around the buggy address: ffffc90000af5f00: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ffffc90000af5f80: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 >ffffc90000af6000: 00 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ^ ffffc90000af6080: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ffffc90000af6100: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ==================================================================