Warning: Permanently added '10.128.0.180' (ED25519) to the list of known hosts. executing program [ 38.189376][ T4292] loop0: detected capacity change from 0 to 1024 [ 38.199295][ T4292] ================================================================== [ 38.200883][ T4292] BUG: KASAN: slab-out-of-bounds in hfsplus_uni2asc+0x624/0x1018 [ 38.202361][ T4292] Read of size 2 at addr ffff0000ca05440c by task syz-executor124/4292 [ 38.203924][ T4292] [ 38.204400][ T4292] CPU: 0 PID: 4292 Comm: syz-executor124 Tainted: G W 6.1.121-syzkaller #0 [ 38.206265][ T4292] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 38.208100][ T4292] Call trace: [ 38.208737][ T4292] dump_backtrace+0x1c8/0x1f4 [ 38.209789][ T4292] show_stack+0x2c/0x3c [ 38.210625][ T4292] dump_stack_lvl+0x108/0x170 [ 38.211545][ T4292] print_report+0x174/0x4c0 [ 38.212398][ T4292] kasan_report+0xd4/0x130 [ 38.213204][ T4292] __asan_report_load2_noabort+0x2c/0x38 [ 38.214228][ T4292] hfsplus_uni2asc+0x624/0x1018 [ 38.215120][ T4292] hfsplus_readdir+0x7a0/0xf28 [ 38.216045][ T4292] iterate_dir+0x1f4/0x4ec [ 38.216895][ T4292] __arm64_sys_getdents64+0x1c4/0x4a0 [ 38.217949][ T4292] invoke_syscall+0x98/0x2bc [ 38.218852][ T4292] el0_svc_common+0x138/0x258 [ 38.219772][ T4292] do_el0_svc+0x58/0x13c [ 38.220600][ T4292] el0_svc+0x58/0x168 [ 38.221390][ T4292] el0t_64_sync_handler+0x84/0xf0 [ 38.222382][ T4292] el0t_64_sync+0x18c/0x190 [ 38.223280][ T4292] [ 38.223759][ T4292] Allocated by task 4292: [ 38.224617][ T4292] kasan_set_track+0x4c/0x80 [ 38.225500][ T4292] kasan_save_alloc_info+0x24/0x30 [ 38.226479][ T4292] __kasan_kmalloc+0xac/0xc4 [ 38.227409][ T4292] __kmalloc+0xd8/0x1c4 [ 38.228234][ T4292] hfsplus_find_init+0x84/0x1bc [ 38.229224][ T4292] hfsplus_readdir+0x1c8/0xf28 [ 38.230162][ T4292] iterate_dir+0x1f4/0x4ec [ 38.231019][ T4292] __arm64_sys_getdents64+0x1c4/0x4a0 [ 38.232103][ T4292] invoke_syscall+0x98/0x2bc [ 38.232997][ T4292] el0_svc_common+0x138/0x258 [ 38.233930][ T4292] do_el0_svc+0x58/0x13c [ 38.234815][ T4292] el0_svc+0x58/0x168 [ 38.235589][ T4292] el0t_64_sync_handler+0x84/0xf0 [ 38.236618][ T4292] el0t_64_sync+0x18c/0x190 [ 38.237511][ T4292] [ 38.237951][ T4292] Last potentially related work creation: [ 38.239093][ T4292] kasan_save_stack+0x40/0x70 [ 38.240005][ T4292] __kasan_record_aux_stack+0xcc/0xe8 [ 38.241031][ T4292] kasan_record_aux_stack_noalloc+0x14/0x20 [ 38.242166][ T4292] call_rcu+0xfc/0xa40 [ 38.243101][ T4292] netlink_release+0x1274/0x179c [ 38.244095][ T4292] sock_close+0xb8/0x1fc [ 38.244963][ T4292] __fput+0x1c8/0x7c8 [ 38.245732][ T4292] ____fput+0x20/0x30 [ 38.246506][ T4292] task_work_run+0x240/0x2f0 [ 38.247428][ T4292] do_notify_resume+0x2080/0x2cb8 [ 38.248428][ T4292] el0_svc+0x9c/0x168 [ 38.249206][ T4292] el0t_64_sync_handler+0x84/0xf0 [ 38.250170][ T4292] el0t_64_sync+0x18c/0x190 [ 38.251035][ T4292] [ 38.251509][ T4292] The buggy address belongs to the object at ffff0000ca054000 [ 38.251509][ T4292] which belongs to the cache kmalloc-2k of size 2048 [ 38.254223][ T4292] The buggy address is located 1036 bytes inside of [ 38.254223][ T4292] 2048-byte region [ffff0000ca054000, ffff0000ca054800) [ 38.256816][ T4292] [ 38.257284][ T4292] The buggy address belongs to the physical page: [ 38.258531][ T4292] page:0000000018e326ad refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10a050 [ 38.260541][ T4292] head:0000000018e326ad order:3 compound_mapcount:0 compound_pincount:0 [ 38.262180][ T4292] flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff) [ 38.263775][ T4292] raw: 05ffc00000010200 0000000000000000 dead000000000001 ffff0000c0002900 [ 38.265478][ T4292] raw: 0000000000000000 0000000000080008 00000001ffffffff 0000000000000000 [ 38.267138][ T4292] page dumped because: kasan: bad access detected [ 38.268380][ T4292] [ 38.268832][ T4292] Memory state around the buggy address: [ 38.269915][ T4292] ffff0000ca054300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 38.271463][ T4292] ffff0000ca054380: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 38.273111][ T4292] >ffff0000ca054400: 00 04 fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 38.274724][ T4292] ^ [ 38.275588][ T4292] ffff0000ca054480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 38.277136][ T4292] ffff0000ca054500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 38.278674][ T4292] ================================================================== [ 38.282704][ T4292] Disabling lock debugging due to kernel taint executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program 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program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing 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executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing 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program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program