RBP: 0000000000000002 R08: 00007ffee17ee586 R09: 0000000000003432 R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000003 R13: 0000000000050012 R14: 00007ffee17ee8ea R15: 000000000000000d ================================================================== BUG: KASAN: use-after-free in is_handle_aborted include/linux/jbd2.h:1694 [inline] BUG: KASAN: use-after-free in jbd2_journal_get_write_access+0x12f/0x140 fs/jbd2/transaction.c:1241 Read of size 4 at addr ffff888071a53eec by task syz-executor367/3503 CPU: 0 PID: 3503 Comm: syz-executor367 Not tainted 5.15.143-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106 print_address_description+0x63/0x3b0 mm/kasan/report.c:248 __kasan_report mm/kasan/report.c:434 [inline] kasan_report+0x16b/0x1c0 mm/kasan/report.c:451 is_handle_aborted include/linux/jbd2.h:1694 [inline] jbd2_journal_get_write_access+0x12f/0x140 fs/jbd2/transaction.c:1241 __ext4_journal_get_write_access+0x257/0x6b0 fs/ext4/ext4_jbd2.c:235 ext4_reserve_inode_write+0x2bd/0x3d0 fs/ext4/inode.c:5782 __ext4_mark_inode_dirty+0x1d6/0x860 fs/ext4/inode.c:5956 ext4_symlink+0xa2f/0xed0 fs/ext4/namei.c:3463 vfs_symlink+0x2ad/0x490 fs/namei.c:4358 do_symlinkat+0x1fd/0x600 fs/namei.c:4387 __do_sys_symlink fs/namei.c:4409 [inline] __se_sys_symlink fs/namei.c:4407 [inline] __x64_sys_symlink+0x7a/0x90 fs/namei.c:4407 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7ff734690269 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 21 1f 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffee17ee7e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000058 RAX: ffffffffffffffda RBX: 00007ffee17ee7f0 RCX: 00007ff734690269 RDX: 00007ff73468f170 RSI: 0000000020000180 RDI: 0000000020000140 RBP: 0000000000000002 R08: 00007ffee17ee586 R09: 0000000000003432 R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000003 R13: 0000000000050012 R14: 00007ffee17ee8ea R15: 000000000000000d Allocated by task 3503: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track mm/kasan/common.c:46 [inline] set_alloc_info mm/kasan/common.c:434 [inline] __kasan_slab_alloc+0x8e/0xc0 mm/kasan/common.c:467 kasan_slab_alloc include/linux/kasan.h:254 [inline] slab_post_alloc_hook+0x53/0x380 mm/slab.h:519 slab_alloc_node mm/slub.c:3220 [inline] slab_alloc mm/slub.c:3228 [inline] kmem_cache_alloc+0xf3/0x280 mm/slub.c:3233 kmem_cache_zalloc include/linux/slab.h:711 [inline] jbd2_alloc_handle include/linux/jbd2.h:1597 [inline] new_handle fs/jbd2/transaction.c:477 [inline] jbd2__journal_start+0x144/0x5c0 fs/jbd2/transaction.c:504 __ext4_journal_start_sb+0x175/0x370 fs/ext4/ext4_jbd2.c:105 __ext4_new_inode+0x138b/0x4430 fs/ext4/ialloc.c:1080 ext4_symlink+0x4c3/0xed0 fs/ext4/namei.c:3382 vfs_symlink+0x2ad/0x490 fs/namei.c:4358 do_symlinkat+0x1fd/0x600 fs/namei.c:4387 __do_sys_symlink fs/namei.c:4409 [inline] __se_sys_symlink fs/namei.c:4407 [inline] __x64_sys_symlink+0x7a/0x90 fs/namei.c:4407 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb Freed by task 3503: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track+0x4b/0x80 mm/kasan/common.c:46 kasan_set_free_info+0x1f/0x40 mm/kasan/generic.c:360 ____kasan_slab_free+0xd8/0x120 mm/kasan/common.c:366 kasan_slab_free include/linux/kasan.h:230 [inline] slab_free_hook mm/slub.c:1705 [inline] slab_free_freelist_hook+0xdd/0x160 mm/slub.c:1731 slab_free mm/slub.c:3499 [inline] kmem_cache_free+0x91/0x1f0 mm/slub.c:3515 jbd2_free_handle include/linux/jbd2.h:1602 [inline] jbd2_journal_stop+0x8d9/0xd70 fs/jbd2/transaction.c:1964 __ext4_journal_stop+0xf8/0x190 fs/ext4/ext4_jbd2.c:127 ext4_symlink+0x5fe/0xed0 fs/ext4/namei.c:3461 vfs_symlink+0x2ad/0x490 fs/namei.c:4358 do_symlinkat+0x1fd/0x600 fs/namei.c:4387 __do_sys_symlink fs/namei.c:4409 [inline] __se_sys_symlink fs/namei.c:4407 [inline] __x64_sys_symlink+0x7a/0x90 fs/namei.c:4407 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb The buggy address belongs to the object at ffff888071a53ec8 which belongs to the cache jbd2_journal_handle of size 56 The buggy address is located 36 bytes inside of 56-byte region [ffff888071a53ec8, ffff888071a53f00) The buggy address belongs to the page: page:ffffea0001c694c0 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x71a53 flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000200 0000000000000000 dead000000000122 ffff88814634d140 raw: 0000000000000000 00000000802e002e 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 0, migratetype Reclaimable, gfp_mask 0x12c50(GFP_NOFS|__GFP_NOWARN|__GFP_NORETRY|__GFP_RECLAIMABLE), pid 3492, ts 35917830207, free_ts 10187209887 prep_new_page mm/page_alloc.c:2426 [inline] get_page_from_freelist+0x322a/0x33c0 mm/page_alloc.c:4159 __alloc_pages+0x272/0x700 mm/page_alloc.c:5421 alloc_slab_page mm/slub.c:1775 [inline] allocate_slab mm/slub.c:1912 [inline] new_slab+0xbb/0x4b0 mm/slub.c:1975 ___slab_alloc+0x6f6/0xe10 mm/slub.c:3008 __slab_alloc mm/slub.c:3095 [inline] slab_alloc_node mm/slub.c:3186 [inline] slab_alloc mm/slub.c:3228 [inline] kmem_cache_alloc+0x18e/0x280 mm/slub.c:3233 kmem_cache_zalloc include/linux/slab.h:711 [inline] jbd2_alloc_handle include/linux/jbd2.h:1597 [inline] new_handle fs/jbd2/transaction.c:477 [inline] jbd2__journal_start+0x144/0x5c0 fs/jbd2/transaction.c:504 __ext4_journal_start_sb+0x175/0x370 fs/ext4/ext4_jbd2.c:105 __ext4_journal_start fs/ext4/ext4_jbd2.h:326 [inline] ext4_dirty_inode+0x8b/0x100 fs/ext4/inode.c:5990 __mark_inode_dirty+0x2fd/0xd60 fs/fs-writeback.c:2464 mark_inode_dirty include/linux/fs.h:2436 [inline] generic_write_end+0x232/0x440 fs/buffer.c:2204 ext4_da_write_end+0x72d/0x9e0 fs/ext4/inode.c:3084 generic_perform_write+0x3b7/0x5b0 mm/filemap.c:3787 ext4_buffered_write_iter+0x227/0x360 fs/ext4/file.c:268 ext4_file_write_iter+0x87c/0x1990 call_write_iter include/linux/fs.h:2146 [inline] new_sync_write fs/read_write.c:507 [inline] vfs_write+0xacf/0xe50 fs/read_write.c:594 ksys_write+0x1a2/0x2c0 fs/read_write.c:647 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1340 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0xc34/0xcf0 mm/page_alloc.c:3317 free_unref_page+0x95/0x2d0 mm/page_alloc.c:3396 free_contig_range+0x95/0xf0 mm/page_alloc.c:9340 destroy_args+0xfe/0x97f mm/debug_vm_pgtable.c:1018 debug_vm_pgtable+0x40d/0x462 mm/debug_vm_pgtable.c:1331 do_one_initcall+0x22b/0x7a0 init/main.c:1299 do_initcall_level+0x157/0x207 init/main.c:1372 do_initcalls+0x49/0x86 init/main.c:1388 kernel_init_freeable+0x425/0x5b5 init/main.c:1612 kernel_init+0x19/0x290 init/main.c:1503 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 Memory state around the buggy address: ffff888071a53d80: fb fb fb fb fc fc fc fc fa fb fb fb fb fb fb fc ffff888071a53e00: fc fc fc fa fb fb fb fb fb fb fc fc fc fc fa fb >ffff888071a53e80: fb fb fb fb fb fc fc fc fc fa fb fb fb fb fb fb ^ ffff888071a53f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff888071a53f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ==================================================================