read_mapping_page failed! ERROR: (device loop2): txAbort: ================================================================== BUG: KASAN: slab-out-of-bounds in dtSplitPage+0xdc4/0x2cbc fs/jfs/jfs_dtree.c:-1 Read of size 1 at addr ffff0000f4f84025 by task syz.2.224/7409 CPU: 1 UID: 0 PID: 7409 Comm: syz.2.224 Not tainted 6.15.0-rc5-syzkaller-gc32f8dc5aaf9 #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Call trace: show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:466 (C) __dump_stack+0x30/0x40 lib/dump_stack.c:94 dump_stack_lvl+0xd8/0x12c lib/dump_stack.c:120 print_address_description+0xa8/0x254 mm/kasan/report.c:408 print_report+0x68/0x84 mm/kasan/report.c:521 kasan_report+0xb0/0x110 mm/kasan/report.c:634 __asan_report_load1_noabort+0x20/0x2c mm/kasan/report_generic.c:378 dtSplitPage+0xdc4/0x2cbc fs/jfs/jfs_dtree.c:-1 dtSplitUp fs/jfs/jfs_dtree.c:1092 [inline] dtInsert+0xccc/0x49c0 fs/jfs/jfs_dtree.c:871 jfs_create+0x588/0x8c4 fs/jfs/namei.c:137 lookup_open fs/namei.c:3701 [inline] open_last_lookups fs/namei.c:3800 [inline] path_openat+0x12d8/0x2c40 fs/namei.c:4036 do_filp_open+0x18c/0x36c fs/namei.c:4066 do_sys_openat2+0x11c/0x1b4 fs/open.c:1429 do_sys_open fs/open.c:1444 [inline] __do_sys_openat fs/open.c:1460 [inline] __se_sys_openat fs/open.c:1455 [inline] __arm64_sys_openat+0x120/0x158 fs/open.c:1455 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x58/0x17c arch/arm64/kernel/entry-common.c:767 el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:786 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 Allocated by task 7409: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x40/0x78 mm/kasan/common.c:68 kasan_save_alloc_info+0x44/0x54 mm/kasan/generic.c:562 unpoison_slab_object mm/kasan/common.c:319 [inline] __kasan_slab_alloc+0x70/0x88 mm/kasan/common.c:345 kasan_slab_alloc include/linux/kasan.h:250 [inline] slab_post_alloc_hook mm/slub.c:4147 [inline] slab_alloc_node mm/slub.c:4196 [inline] kmem_cache_alloc_lru_noprof+0x23c/0x3ec mm/slub.c:4215 jfs_alloc_inode+0x2c/0x68 fs/jfs/super.c:105 alloc_inode+0x68/0x19c fs/inode.c:346 iget_locked+0x168/0x7b0 fs/inode.c:1439 jfs_iget+0x30/0x388 fs/jfs/inode.c:29 jfs_lookup+0x198/0x32c fs/jfs/namei.c:1469 __lookup_slow+0x254/0x378 fs/namei.c:1817 lookup_slow+0x5c/0x80 fs/namei.c:1834 walk_component fs/namei.c:2138 [inline] link_path_walk+0x78c/0xc60 fs/namei.c:2503 path_parentat fs/namei.c:2707 [inline] __filename_parentat+0x1c8/0x544 fs/namei.c:2731 filename_parentat fs/namei.c:2749 [inline] do_renameat2+0x21c/0xa40 fs/namei.c:5193 __do_sys_renameat2 fs/namei.c:5304 [inline] __se_sys_renameat2 fs/namei.c:5301 [inline] __arm64_sys_renameat2+0xd8/0xf4 fs/namei.c:5301 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x58/0x17c arch/arm64/kernel/entry-common.c:767 el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:786 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 The buggy address belongs to the object at ffff0000f4f83750 which belongs to the cache jfs_ip of size 2232 The buggy address is located 29 bytes to the right of allocated 2232-byte region [ffff0000f4f83750, ffff0000f4f84008) The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x134f80 head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 memcg:ffff0000cddd7701 flags: 0x5ffc00000000040(head|node=0|zone=2|lastcpupid=0x7ff) page_type: f5(slab) raw: 05ffc00000000040 ffff0000c406a500 dead000000000122 0000000000000000 raw: 0000000000000000 00000000800d000d 00000000f5000000 ffff0000cddd7701 head: 05ffc00000000040 ffff0000c406a500 dead000000000122 0000000000000000 head: 0000000000000000 00000000800d000d 00000000f5000000 ffff0000cddd7701 head: 05ffc00000000003 fffffdffc3d3e001 00000000ffffffff 00000000ffffffff head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff0000f4f83f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff0000f4f83f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff0000f4f84000: 00 fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff0000f4f84080: fc 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff0000f4f84100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ================================================================== find_entry called with index = 0 read_mapping_page failed! ERROR: (device loop2): txAbort: netlink: 4 bytes leftover after parsing attributes in process `syz.2.224'. find_entry called with index = 0 find_entry called with index = 0 read_mapping_page failed! ERROR: (device loop2): txAbort: