REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 REISERFS (device loop0): checking transaction log (loop0) REISERFS (device loop0): Using r5 hash to sort names ================================================================== BUG: KASAN: use-after-free in instrument_atomic_read include/linux/instrumented.h:68 [inline] BUG: KASAN: use-after-free in _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline] BUG: KASAN: use-after-free in test_bit_le include/asm-generic/bitops/le.h:21 [inline] BUG: KASAN: use-after-free in reiserfs_readdir_inode+0x5dc/0x14c0 fs/reiserfs/dir.c:147 Read of size 8 at addr ffff88807424b000 by task syz-executor218/5022 CPU: 0 PID: 5022 Comm: syz-executor218 Not tainted 6.5.0-syzkaller-01207-g1c59d383390f #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+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 kasan_check_range+0x27e/0x290 mm/kasan/generic.c:187 instrument_atomic_read include/linux/instrumented.h:68 [inline] _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline] test_bit_le include/asm-generic/bitops/le.h:21 [inline] reiserfs_readdir_inode+0x5dc/0x14c0 fs/reiserfs/dir.c:147 iterate_dir+0x1cd/0x580 fs/readdir.c:106 __do_sys_getdents64 fs/readdir.c:405 [inline] __se_sys_getdents64+0x20d/0x4f0 fs/readdir.c:390 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: 0033:0x7fe4b6d129b9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 1a 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 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:00007fffd098b6d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d9 RAX: ffffffffffffffda RBX: 00007fe4b6d6709a RCX: 00007fe4b6d129b9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00007fffd098b728 R08: 0000555500000000 R09: 0000555500000000 R10: 0000000000001131 R11: 0000000000000246 R12: 00007fffd098b740 R13: 00007fe4b6d955b0 R14: 0000000000000000 R15: 00007fffd098b734 The buggy address belongs to the physical page: page:ffffea0001d092c0 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1 pfn:0x7424b flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) page_type: 0xffffffff() raw: 00fff00000000000 ffffea0001d09308 ffff8880b98431a0 0000000000000000 raw: 0000000000000001 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as freed page last allocated via order 0, migratetype Movable, gfp_mask 0x8(__GFP_MOVABLE), pid 1, tgid 1 (swapper/0), ts 16863089212, free_ts 18396190057 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x1e6/0x210 mm/page_alloc.c:1570 split_map_pages+0x24a/0x510 mm/compaction.c:97 isolate_freepages_range+0x480/0x4e0 mm/compaction.c:754 alloc_contig_range+0x62e/0x9a0 mm/page_alloc.c:6270 __alloc_contig_pages mm/page_alloc.c:6293 [inline] alloc_contig_pages+0x3f4/0x4f0 mm/page_alloc.c:6373 debug_vm_pgtable_alloc_huge_page+0xb9/0x110 mm/debug_vm_pgtable.c:1096 init_args+0x837/0xb10 mm/debug_vm_pgtable.c:1279 debug_vm_pgtable+0xe0/0x4b0 mm/debug_vm_pgtable.c:1317 do_one_initcall+0x23d/0x7d0 init/main.c:1232 do_initcall_level+0x157/0x210 init/main.c:1294 do_initcalls+0x3f/0x80 init/main.c:1310 kernel_init_freeable+0x43b/0x5d0 init/main.c:1546 kernel_init+0x1d/0x2a0 init/main.c:1437 ret_from_fork+0x2e/0x60 arch/x86/kernel/process.c:145 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1161 [inline] free_unref_page_prepare+0x903/0xa30 mm/page_alloc.c:2348 free_unref_page+0x37/0x3f0 mm/page_alloc.c:2443 free_contig_range+0x9e/0x150 mm/page_alloc.c:6395 destroy_args+0x102/0x9a0 mm/debug_vm_pgtable.c:1029 debug_vm_pgtable+0x42a/0x4b0 mm/debug_vm_pgtable.c:1410 do_one_initcall+0x23d/0x7d0 init/main.c:1232 do_initcall_level+0x157/0x210 init/main.c:1294 do_initcalls+0x3f/0x80 init/main.c:1310 kernel_init_freeable+0x43b/0x5d0 init/main.c:1546 kernel_init+0x1d/0x2a0 init/main.c:1437 ret_from_fork+0x2e/0x60 arch/x86/kernel/process.c:145 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304 Memory state around the buggy address: ffff88807424af00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff88807424af80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff88807424b000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ^ ffff88807424b080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff88807424b100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ==================================================================