Warning: Permanently added '10.128.1.156' (ED25519) to the list of known hosts. executing program executing program executing program executing program [ 36.288444][ T4226] loop4: detected capacity change from 0 to 1024 [ 36.291486][ T4227] loop1: detected capacity change from 0 to 1024 executing program [ 36.300532][ T4230] loop3: detected capacity change from 0 to 1024 [ 36.314363][ T4229] loop2: detected capacity change from 0 to 1024 [ 36.325060][ T4228] loop0: detected capacity change from 0 to 1024 executing program executing program executing program executing program [ 36.396618][ T11] ================================================================== [ 36.398626][ T11] BUG: KASAN: slab-out-of-bounds in _copy_to_iter+0x738/0xe58 [ 36.400389][ T11] Write of size 2048 at addr ffff0000c3080800 by task kworker/u4:1/11 [ 36.402308][ T11] [ 36.402841][ T11] CPU: 0 PID: 11 Comm: kworker/u4:1 Not tainted 6.1.83-syzkaller #0 [ 36.404423][ T11] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 36.406704][ T11] Workqueue: loop0 loop_rootcg_workfn [ 36.407925][ T11] Call trace: [ 36.408743][ T11] dump_backtrace+0x1c8/0x1f4 [ 36.409801][ T11] show_stack+0x2c/0x3c [ 36.410837][ T11] dump_stack_lvl+0x108/0x170 [ 36.411917][ T11] print_report+0x174/0x4c0 [ 36.412980][ T11] kasan_report+0xd4/0x130 [ 36.413927][ T11] kasan_check_range+0x264/0x2a4 [ 36.415050][ T11] memcpy+0x60/0x90 [ 36.415906][ T11] _copy_to_iter+0x738/0xe58 [ 36.416981][ T11] copy_page_to_iter+0x218/0x344 [ 36.418160][ T11] shmem_file_read_iter+0x4d0/0xa04 [ 36.419296][ T11] do_iter_read+0x578/0x998 [ 36.420337][ T11] vfs_iter_read+0x88/0xac [ 36.421353][ T11] loop_process_work+0xe7c/0x24a4 [ 36.422548][ T11] loop_rootcg_workfn+0x28/0x38 [ 36.423616][ T11] process_one_work+0x7ac/0x1404 [ 36.424784][ T11] worker_thread+0x8e4/0xfec [ 36.425824][ T11] kthread+0x250/0x2d8 [ 36.426737][ T11] ret_from_fork+0x10/0x20 [ 36.427771][ T11] [ 36.428346][ T11] Allocated by task 4228: [ 36.429340][ T11] kasan_set_track+0x4c/0x80 [ 36.430389][ T11] kasan_save_alloc_info+0x24/0x30 [ 36.431647][ T11] __kasan_kmalloc+0xac/0xc4 [ 36.432729][ T11] __kmalloc+0xd8/0x1c4 [ 36.433676][ T11] hfsplus_read_wrapper+0x46c/0xfcc [ 36.434936][ T11] hfsplus_fill_super+0x2f0/0x166c [ 36.436070][ T11] mount_bdev+0x274/0x370 [ 36.437029][ T11] hfsplus_mount+0x44/0x58 [ 36.438071][ T11] legacy_get_tree+0xd4/0x16c [ 36.439159][ T11] vfs_get_tree+0x90/0x274 [ 36.440111][ T11] do_new_mount+0x278/0x8fc [ 36.441181][ T11] path_mount+0x590/0xe5c [ 36.442232][ T11] __arm64_sys_mount+0x45c/0x594 [ 36.443437][ T11] invoke_syscall+0x98/0x2c0 [ 36.444544][ T11] el0_svc_common+0x138/0x258 [ 36.445604][ T11] do_el0_svc+0x64/0x218 [ 36.446589][ T11] el0_svc+0x58/0x168 [ 36.447515][ T11] el0t_64_sync_handler+0x84/0xf0 [ 36.448602][ T11] el0t_64_sync+0x18c/0x190 [ 36.449627][ T11] [ 36.450120][ T11] The buggy address belongs to the object at ffff0000c3080800 [ 36.450120][ T11] which belongs to the cache kmalloc-512 of size 512 [ 36.453337][ T11] The buggy address is located 0 bytes inside of [ 36.453337][ T11] 512-byte region [ffff0000c3080800, ffff0000c3080a00) [ 36.456263][ T11] [ 36.456792][ T11] The buggy address belongs to the physical page: [ 36.458260][ T11] page:00000000bcf74046 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103080 [ 36.460547][ T11] head:00000000bcf74046 order:2 compound_mapcount:0 compound_pincount:0 [ 36.462439][ T11] flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff) [ 36.464365][ T11] raw: 05ffc00000010200 dead000000000100 dead000000000122 ffff0000c0002600 [ 36.466299][ T11] raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000 [ 36.468340][ T11] page dumped because: kasan: bad access detected [ 36.469847][ T11] [ 36.470357][ T11] Memory state around the buggy address: [ 36.471615][ T11] ffff0000c3080900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 36.473568][ T11] ffff0000c3080980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 36.475392][ T11] >ffff0000c3080a00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 36.477244][ T11] ^ [ 36.478151][ T11] ffff0000c3080a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 36.479953][ T11] ffff0000c3080b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 36.481779][ T11] ================================================================== executing program [ 36.494331][ T11] Disabling lock debugging due to kernel taint executing program [ 36.498163][ T4228] hfsplus: invalid secondary volume header [ 36.501174][ T4228] hfsplus: unable to find HFS+ superblock executing program executing program executing program executing program executing program executing program executing program executing program [ 36.575586][ T4244] loop0: detected capacity change from 0 to 1024 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program