Warning: Permanently added '10.128.0.13' (ED25519) to the list of known hosts. executing program executing program executing program [ 41.935581][ T6095] loop0: detected capacity change from 0 to 1024 executing program [ 41.945391][ T6096] loop1: detected capacity change from 0 to 1024 executing program executing program [ 41.957785][ T6100] loop2: detected capacity change from 0 to 1024 executing program executing program [ 42.013900][ T220] ================================================================== [ 42.015853][ T220] BUG: KASAN: slab-out-of-bounds in _copy_to_iter+0x7dc/0x1500 [ 42.017640][ T220] Write of size 2048 at addr ffff0000ce31a400 by task kworker/u4:5/220 [ 42.019589][ T220] [ 42.020164][ T220] CPU: 1 PID: 220 Comm: kworker/u4:5 Not tainted 6.7.0-rc4-syzkaller-gd46efae31672 #0 [ 42.022416][ T220] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 [ 42.024870][ T220] Workqueue: loop0 loop_rootcg_workfn [ 42.026162][ T220] Call trace: [ 42.027010][ T220] dump_backtrace+0x1b8/0x1e4 [ 42.028188][ T220] show_stack+0x2c/0x44 [ 42.029253][ T220] dump_stack_lvl+0xd0/0x124 [ 42.030387][ T220] print_report+0x174/0x514 [ 42.031376][ T220] kasan_report+0xd8/0x138 [ 42.032522][ T220] kasan_check_range+0x254/0x294 [ 42.033773][ T220] __asan_memcpy+0x54/0x84 [ 42.034910][ T220] _copy_to_iter+0x7dc/0x1500 [ 42.036002][ T220] copy_page_to_iter+0x200/0x2f8 [ 42.037193][ T220] shmem_file_read_iter+0x4a0/0x9dc [ 42.038461][ T220] do_iter_read+0x668/0xa80 [ 42.039537][ T220] vfs_iter_read+0x88/0xac [ 42.040561][ T220] loop_process_work+0xe9c/0x2498 [ 42.041727][ T220] loop_rootcg_workfn+0x28/0x38 [ 42.042883][ T220] process_one_work+0x694/0x1204 [ 42.044113][ T220] worker_thread+0x938/0xef4 [ 42.045181][ T220] kthread+0x288/0x310 [ 42.046162][ T220] ret_from_fork+0x10/0x20 [ 42.047235][ T220] [ 42.047782][ T220] Allocated by task 6095: [ 42.048793][ T220] kasan_set_track+0x4c/0x7c [ 42.049974][ T220] kasan_save_alloc_info+0x24/0x30 [ 42.051233][ T220] __kasan_kmalloc+0xac/0xc4 [ 42.052354][ T220] __kmalloc+0xcc/0x1b8 [ 42.053376][ T220] hfsplus_read_wrapper+0x46c/0xfcc [ 42.054715][ T220] hfsplus_fill_super+0x2f0/0x166c [ 42.054907][ T6103] loop4: detected capacity change from 0 to 1024 [ 42.055885][ T220] mount_bdev+0x1e8/0x2b4 [ 42.058421][ T220] hfsplus_mount+0x44/0x58 [ 42.059467][ T220] legacy_get_tree+0xd4/0x16c [ 42.060581][ T220] vfs_get_tree+0x90/0x288 [ 42.061626][ T220] do_new_mount+0x25c/0x8c8 [ 42.062742][ T220] path_mount+0x590/0xe04 [ 42.063836][ T220] __arm64_sys_mount+0x45c/0x594 [ 42.065027][ T220] invoke_syscall+0x98/0x2b8 [ 42.066130][ T220] el0_svc_common+0x130/0x23c [ 42.067236][ T220] do_el0_svc+0x48/0x58 [ 42.068200][ T220] el0_svc+0x54/0x158 [ 42.069255][ T220] el0t_64_sync_handler+0x84/0xfc [ 42.070450][ T220] el0t_64_sync+0x190/0x194 [ 42.071533][ T220] executing program [ 42.072089][ T220] The buggy address belongs to the object at ffff0000ce31a400 [ 42.072089][ T220] which belongs to the cache kmalloc-512 of size 512 [ 42.075468][ T220] The buggy address is located 0 bytes inside of [ 42.075468][ T220] allocated 512-byte region [ffff0000ce31a400, ffff0000ce31a600) [ 42.078754][ T220] [ 42.079305][ T220] The buggy address belongs to the physical page: [ 42.080803][ T220] page:00000000950b7bf3 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10e318 [ 42.083159][ T220] head:00000000950b7bf3 order:2 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 42.085344][ T220] anon flags: 0x5ffc00000000840(slab|head|node=0|zone=2|lastcpupid=0x7ff) [ 42.087432][ T220] page_type: 0xffffffff() [ 42.088489][ T220] raw: 05ffc00000000840 ffff0000c0001c80 0000000000000000 dead000000000001 [ 42.090566][ T220] raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000 [ 42.091421][ T6101] loop3: detected capacity change from 0 to 1024 [ 42.092635][ T220] page dumped because: kasan: bad access detected [ 42.092644][ T220] [ 42.092646][ T220] Memory state around the buggy address: [ 42.092652][ T220] ffff0000ce31a500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 42.092659][ T220] ffff0000ce31a580: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 42.092666][ T220] >ffff0000ce31a600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 42.092671][ T220] ^ [ 42.092676][ T220] ffff0000ce31a680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 42.092683][ T220] ffff0000ce31a700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 42.092688][ T220] ================================================================== [ 42.099261][ T6104] loop5: detected capacity change from 0 to 1024 [ 42.112896][ T220] Disabling lock debugging due to kernel taint [ 42.118312][ T6095] hfsplus: invalid secondary volume header [ 42.119784][ T6095] hfsplus: unable to find HFS+ superblock executing program executing program executing program executing program [ 42.140822][ T6110] loop0: detected capacity change from 0 to 1024 executing program executing program executing program executing program executing program [ 42.181387][ T6110] hfsplus: unable to set blocksize to 1024! [ 42.191610][ T6110] hfsplus: unable to find HFS+ superblock executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 50.322784][ T7327] loop0: detected capacity change from 0 to 1024 executing program executing program executing program executing program executing program [ 50.357620][ T7327] hfsplus: unable to set blocksize to 1024! [ 50.361564][ T7327] hfsplus: unable to find HFS+ superblock executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program