Warning: Permanently added '10.128.0.240' (ED25519) to the list of known hosts. executing program [ 37.718945][ T4296] loop0: detected capacity change from 0 to 128 [ 37.724239][ T4296] VFS: Found a Xenix FS (block size = 1024) on device loop0 [ 37.728415][ T4296] ================================================================== [ 37.730503][ T4296] BUG: KASAN: use-after-free in sysv_new_inode+0xd8c/0xf04 [ 37.732419][ T4296] Read of size 2 at addr ffff0000e2f4f1ce by task syz-executor250/4296 [ 37.734624][ T4296] [ 37.735220][ T4296] CPU: 1 PID: 4296 Comm: syz-executor250 Not tainted 6.1.138-syzkaller #0 [ 37.737466][ T4296] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 37.740201][ T4296] Call trace: [ 37.741072][ T4296] dump_backtrace+0x1c8/0x1f4 [ 37.742304][ T4296] show_stack+0x2c/0x3c [ 37.743401][ T4296] __dump_stack+0x30/0x40 [ 37.744562][ T4296] dump_stack_lvl+0xf8/0x160 [ 37.745792][ T4296] print_address_description+0x88/0x220 [ 37.747260][ T4296] print_report+0x50/0x68 [ 37.748426][ T4296] kasan_report+0xa8/0x100 [ 37.749613][ T4296] __asan_report_load2_noabort+0x2c/0x38 [ 37.751148][ T4296] sysv_new_inode+0xd8c/0xf04 [ 37.752385][ T4296] sysv_mknod+0x5c/0x100 [ 37.753542][ T4296] sysv_create+0x38/0x4c [ 37.754663][ T4296] path_openat+0x112c/0x2680 [ 37.755876][ T4296] do_filp_open+0x174/0x344 [ 37.757072][ T4296] do_sys_openat2+0x128/0x3d8 [ 37.758300][ T4296] __arm64_sys_openat+0x120/0x154 [ 37.759633][ T4296] invoke_syscall+0x98/0x2bc [ 37.760841][ T4296] el0_svc_common+0x138/0x258 [ 37.762079][ T4296] do_el0_svc+0x58/0x13c [ 37.763194][ T4296] el0_svc+0x58/0x138 [ 37.764247][ T4296] el0t_64_sync_handler+0x84/0xf0 [ 37.765596][ T4296] el0t_64_sync+0x18c/0x190 [ 37.766805][ T4296] [ 37.767401][ T4296] The buggy address belongs to the physical page: [ 37.769093][ T4296] page:00000000ed18c4c2 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1 pfn:0x122f4f [ 37.771816][ T4296] flags: 0x5ffc00000000000(node=0|zone=2|lastcpupid=0x7ff) [ 37.773746][ T4296] raw: 05ffc00000000000 dead000000000100 dead000000000122 0000000000000000 [ 37.776061][ T4296] raw: 0000000000000001 0000000000000000 00000000ffffffff 0000000000000000 [ 37.778312][ T4296] page dumped because: kasan: bad access detected [ 37.779991][ T4296] [ 37.780611][ T4296] Memory state around the buggy address: [ 37.782090][ T4296] ffff0000e2f4f080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 37.784189][ T4296] ffff0000e2f4f100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 37.786306][ T4296] >ffff0000e2f4f180: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 37.788437][ T4296] ^ [ 37.790125][ T4296] ffff0000e2f4f200: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 37.792249][ T4296] ffff0000e2f4f280: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 37.794421][ T4296] ================================================================== executing program [ 37.796736][ T4296] Disabling lock debugging due to kernel taint [ 37.802105][ T4296] syz-executor250: attempt to access beyond end of device [ 37.802105][ T4296] loop0: rw=2049, sector=6491536, nr_sectors = 2 limit=128 [ 37.806736][ T4296] Buffer I/O error on dev loop0, logical block 3245768, lost async page write executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program