loop2: detected capacity change from 0 to 1024 EXT4-fs: Ignoring removed bh option EXT4-fs: Ignoring removed bh option ================================================================== BUG: KASAN: slab-out-of-bounds in check_igot_inode fs/ext4/inode.c:-1 [inline] BUG: KASAN: slab-out-of-bounds in __ext4_iget+0x254/0x319c fs/ext4/inode.c:4835 Read of size 8 at addr ffff0000f4f1ff30 by task syz.2.9063/24898 CPU: 0 PID: 24898 Comm: syz.2.9063 Not tainted 6.1.132-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Call trace: dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:316 [inline] print_report+0x174/0x4c0 mm/kasan/report.c:427 kasan_report+0xd4/0x130 mm/kasan/report.c:531 __asan_report_load8_noabort+0x2c/0x38 mm/kasan/report_generic.c:351 check_igot_inode fs/ext4/inode.c:-1 [inline] __ext4_iget+0x254/0x319c fs/ext4/inode.c:4835 __ext4_fill_super fs/ext4/super.c:5390 [inline] ext4_fill_super+0x5a60/0x73a4 fs/ext4/super.c:5654 get_tree_bdev+0x360/0x54c fs/super.c:1366 ext4_get_tree+0x28/0x38 fs/ext4/super.c:5684 vfs_get_tree+0x90/0x274 fs/super.c:1573 do_new_mount+0x278/0x8fc fs/namespace.c:3056 path_mount+0x590/0xe5c fs/namespace.c:3386 do_mount fs/namespace.c:3399 [inline] __do_sys_mount fs/namespace.c:3607 [inline] __se_sys_mount fs/namespace.c:3584 [inline] __arm64_sys_mount+0x498/0x588 fs/namespace.c:3584 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 Allocated by task 18151: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4c/0x80 mm/kasan/common.c:52 kasan_save_alloc_info+0x24/0x30 mm/kasan/generic.c:505 __kasan_slab_alloc+0x74/0x8c mm/kasan/common.c:328 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook+0x74/0x458 mm/slab.h:737 slab_alloc_node mm/slub.c:3398 [inline] slab_alloc mm/slub.c:3406 [inline] __kmem_cache_alloc_lru mm/slub.c:3413 [inline] kmem_cache_alloc_lru+0x1ac/0x2f8 mm/slub.c:3429 alloc_inode_sb include/linux/fs.h:3245 [inline] bdev_alloc_inode+0x2c/0x68 block/bdev.c:394 alloc_inode fs/inode.c:261 [inline] new_inode_pseudo+0x68/0x1d0 fs/inode.c:1063 new_inode+0x38/0x174 fs/inode.c:1091 bdev_alloc+0x30/0x234 block/bdev.c:485 add_partition+0x184/0x75c block/partitions/core.c:346 blk_add_partition block/partitions/core.c:581 [inline] blk_add_partitions block/partitions/core.c:653 [inline] bdev_disk_changed+0xa18/0x11d0 block/partitions/core.c:695 loop_reread_partitions drivers/block/loop.c:513 [inline] loop_set_status+0x61c/0x804 drivers/block/loop.c:1317 lo_ioctl+0xf60/0x1d08 drivers/block/loop.c:-1 blkdev_ioctl+0x408/0xb40 block/ioctl.c:620 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:856 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 Last potentially related work creation: kasan_save_stack+0x40/0x70 mm/kasan/common.c:45 __kasan_record_aux_stack+0xcc/0xe8 mm/kasan/generic.c:486 kasan_record_aux_stack_noalloc+0x14/0x20 mm/kasan/generic.c:496 call_rcu+0xfc/0xa40 kernel/rcu/tree.c:2845 destroy_inode fs/inode.c:316 [inline] evict+0x7ac/0x894 fs/inode.c:720 iput_final fs/inode.c:1834 [inline] iput+0x7c0/0x8a4 fs/inode.c:1860 part_release+0x5c/0x6c block/partitions/core.c:254 device_release+0x8c/0x1ac drivers/base/core.c:-1 kobject_cleanup lib/kobject.c:681 [inline] kobject_release lib/kobject.c:712 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x2a8/0x41c lib/kobject.c:729 put_device+0x28/0x40 drivers/base/core.c:3805 delete_partition+0x18c/0x1d0 block/partitions/core.c:291 blk_drop_partitions block/partitions/core.c:543 [inline] bdev_disk_changed+0x2a8/0x11d0 block/partitions/core.c:676 __loop_clr_fd+0x358/0x584 drivers/block/loop.c:1184 lo_release+0x134/0x1c8 drivers/block/loop.c:1740 blkdev_put+0x4e8/0x6e0 block/bdev.c:-1 blkdev_close+0x58/0x94 block/fops.c:514 __fput+0x1c8/0x7c8 fs/file_table.c:320 ____fput+0x20/0x30 fs/file_table.c:348 task_work_run+0x240/0x2f0 kernel/task_work.c:203 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] do_notify_resume+0x2080/0x2cb8 arch/arm64/kernel/signal.c:1132 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline] el0_svc+0x9c/0x168 arch/arm64/kernel/entry-common.c:638 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 Second to last potentially related work creation: kasan_save_stack+0x40/0x70 mm/kasan/common.c:45 __kasan_record_aux_stack+0xcc/0xe8 mm/kasan/generic.c:486 kasan_record_aux_stack_noalloc+0x14/0x20 mm/kasan/generic.c:496 call_rcu+0xfc/0xa40 kernel/rcu/tree.c:2845 destroy_inode fs/inode.c:316 [inline] evict+0x7ac/0x894 fs/inode.c:720 iput_final fs/inode.c:1834 [inline] iput+0x7c0/0x8a4 fs/inode.c:1860 part_release+0x5c/0x6c block/partitions/core.c:254 device_release+0x8c/0x1ac drivers/base/core.c:-1 kobject_cleanup lib/kobject.c:681 [inline] kobject_release lib/kobject.c:712 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x2a8/0x41c lib/kobject.c:729 put_device+0x28/0x40 drivers/base/core.c:3805 delete_partition+0x18c/0x1d0 block/partitions/core.c:291 blk_drop_partitions block/partitions/core.c:543 [inline] bdev_disk_changed+0x2a8/0x11d0 block/partitions/core.c:676 __loop_clr_fd+0x358/0x584 drivers/block/loop.c:1184 lo_release+0x134/0x1c8 drivers/block/loop.c:1740 blkdev_put+0x4e8/0x6e0 block/bdev.c:-1 blkdev_close+0x58/0x94 block/fops.c:514 __fput+0x1c8/0x7c8 fs/file_table.c:320 ____fput+0x20/0x30 fs/file_table.c:348 task_work_run+0x240/0x2f0 kernel/task_work.c:203 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] do_notify_resume+0x2080/0x2cb8 arch/arm64/kernel/signal.c:1132 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline] el0_svc+0x9c/0x168 arch/arm64/kernel/entry-common.c:638 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 The buggy address belongs to the object at ffff0000f4f1ee00 which belongs to the cache bdev_cache of size 2680 The buggy address is located 1720 bytes to the right of 2680-byte region [ffff0000f4f1ee00, ffff0000f4f1f878) The buggy address belongs to the physical page: page:0000000010c16658 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff0000f4f1cd00 pfn:0x134f18 head:0000000010c16658 order:3 compound_mapcount:0 compound_pincount:0 memcg:ffff0000d55a2d01 flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000010200 fffffc0003012608 fffffc0003d36008 ffff0000c03dcf00 raw: ffff0000f4f1cd00 00000000000b0001 00000001ffffffff ffff0000d55a2d01 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff0000f4f1fe00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff0000f4f1fe80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff0000f4f1ff00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff0000f4f1ff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff0000f4f20000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ================================================================== EXT4-fs (loop2): corrupt root inode, run e2fsck EXT4-fs (loop2): mount failed