EXT4-fs (loop0): bad geometry: first data block 8192 is beyond end of filesystem (128) ================================================================== BUG: KCSAN: data-race in exit_signals / get_task_exe_file write to 0xffff888133f1002c of 4 bytes by task 23256 on cpu 1: exit_signals+0xe1/0x4a0 kernel/signal.c:2910 do_exit+0x194/0x1560 kernel/exit.c:782 do_group_exit+0x19b/0x1a0 kernel/exit.c:923 __do_sys_exit_group+0xb/0x10 kernel/exit.c:934 __se_sys_exit_group+0x5/0x10 kernel/exit.c:932 __x64_sys_exit_group+0x16/0x20 kernel/exit.c:932 do_syscall_64+0x4a/0x90 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff888133f1002c of 4 bytes by task 23258 on cpu 0: get_task_exe_file+0x44/0x140 kernel/fork.c:1199 proc_exe_link+0x44/0x100 fs/proc/base.c:1725 proc_pid_get_link+0x50/0xb0 fs/proc/base.c:1750 pick_link fs/namei.c:1736 [inline] step_into+0x974/0xec0 fs/namei.c:1798 open_last_lookups fs/namei.c:3308 [inline] path_openat+0xfc8/0x20b0 fs/namei.c:3491 do_filp_open+0xd9/0x1f0 fs/namei.c:3521 do_sys_openat2+0xa3/0x250 fs/open.c:1187 do_sys_open fs/open.c:1203 [inline] __do_sys_openat fs/open.c:1219 [inline] __se_sys_openat fs/open.c:1214 [inline] __x64_sys_openat+0xef/0x110 fs/open.c:1214 do_syscall_64+0x4a/0x90 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 23258 Comm: syz-executor.0 Not tainted 5.12.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================