Warning: Permanently added '10.128.0.70' (ED25519) to the list of known hosts. executing program [ 42.449679][ T4294] loop0: detected capacity change from 0 to 128 [ 42.456916][ T4294] VFS: Found a Xenix FS (block size = 1024) on device loop0 [ 42.460558][ T4294] syz-executor247: attempt to access beyond end of device [ 42.460558][ T4294] loop0: rw=0, sector=6491536, nr_sectors = 2 limit=128 [ 42.465286][ T4294] Buffer I/O error on dev loop0, logical block 3245768, async page read [ 42.467859][ T4294] ================================================================== [ 42.470071][ T4294] BUG: KASAN: use-after-free in sysv_new_inode+0xd8c/0xf04 [ 42.471912][ T4294] Read of size 2 at addr ffff0001742181ce by task syz-executor247/4294 [ 42.474006][ T4294] [ 42.474617][ T4294] CPU: 1 PID: 4294 Comm: syz-executor247 Not tainted 6.1.137-syzkaller #0 [ 42.476935][ T4294] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 42.479713][ T4294] Call trace: [ 42.480556][ T4294] dump_backtrace+0x1c8/0x1f4 [ 42.481798][ T4294] show_stack+0x2c/0x3c [ 42.482924][ T4294] __dump_stack+0x30/0x40 [ 42.484111][ T4294] dump_stack_lvl+0xf8/0x160 [ 42.485361][ T4294] print_address_description+0x88/0x220 [ 42.486887][ T4294] print_report+0x50/0x68 [ 42.488056][ T4294] kasan_report+0xa8/0x100 [ 42.489255][ T4294] __asan_report_load2_noabort+0x2c/0x38 [ 42.490757][ T4294] sysv_new_inode+0xd8c/0xf04 [ 42.492076][ T4294] sysv_mknod+0x5c/0x100 [ 42.493205][ T4294] sysv_create+0x38/0x4c [ 42.494637][ T4294] path_openat+0x112c/0x2680 [ 42.495902][ T4294] do_filp_open+0x174/0x344 [ 42.497089][ T4294] do_sys_openat2+0x128/0x3d8 [ 42.498315][ T4294] __arm64_sys_openat+0x120/0x154 [ 42.499649][ T4294] invoke_syscall+0x98/0x2bc [ 42.500928][ T4294] el0_svc_common+0x138/0x258 [ 42.502125][ T4294] do_el0_svc+0x58/0x13c [ 42.503223][ T4294] el0_svc+0x58/0x138 [ 42.504272][ T4294] el0t_64_sync_handler+0x84/0xf0 [ 42.505662][ T4294] el0t_64_sync+0x18c/0x190 [ 42.506854][ T4294] [ 42.507475][ T4294] The buggy address belongs to the physical page: [ 42.509242][ T4294] page:0000000061aa7dbb refcount:0 mapcount:0 mapping:0000000000000000 index:0x1 pfn:0x1b4218 [ 42.511947][ T4294] flags: 0x5ffc00000000000(node=0|zone=2|lastcpupid=0x7ff) [ 42.513958][ T4294] raw: 05ffc00000000000 fffffc00038913c8 fffffc0005d0c448 0000000000000000 [ 42.516266][ T4294] raw: 0000000000000001 0000000000000000 00000000ffffffff 0000000000000000 [ 42.518511][ T4294] page dumped because: kasan: bad access detected [ 42.520204][ T4294] [ 42.520817][ T4294] Memory state around the buggy address: [ 42.522287][ T4294] ffff000174218080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 42.524523][ T4294] ffff000174218100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 42.526764][ T4294] >ffff000174218180: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 42.528934][ T4294] ^ [ 42.530640][ T4294] ffff000174218200: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 42.532864][ T4294] ffff000174218280: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 42.535015][ T4294] ================================================================== [ 42.538107][ T4294] Disabling lock debugging due to kernel taint [ 42.539779][ T4294] unable to read i-node block [ 42.541028][ T4294] syz-executor247: attempt to access beyond end of device [ 42.541028][ T4294] loop0: rw=0, sector=6491536, nr_sectors = 2 limit=128 [ 42.544842][ T4294] Buffer I/O error on dev loop0, logical block 3245768, async page read [ 42.546984][ T4294] sysv_free_inode: unable to read inode block on device loop0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program