================================================================================ UBSAN: shift-out-of-bounds in kernel/bpf/verifier.c:9038:63 shift exponent 1073741824 is too large for 32-bit type 'int' CPU: 0 PID: 2035 Comm: syz-executor.0 Not tainted 6.1.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x44/0x60 lib/dump_stack.c:106 ubsan_epilogue+0x5/0x36 lib/ubsan.c:151 __ubsan_handle_shift_out_of_bounds.cold+0x6a/0x108 lib/ubsan.c:322 scalar32_min_max_arsh kernel/bpf/verifier.c:9038 [inline] adjust_scalar_min_max_vals kernel/bpf/verifier.c:9226 [inline] adjust_reg_min_max_vals.cold+0x105/0x124 kernel/bpf/verifier.c:9327 do_check kernel/bpf/verifier.c:12342 [inline] do_check_common+0x103f/0x3e80 kernel/bpf/verifier.c:14750 do_check_main kernel/bpf/verifier.c:14813 [inline] bpf_check+0x2179/0x3230 kernel/bpf/verifier.c:15383 bpf_prog_load+0x573/0xbf0 kernel/bpf/syscall.c:2571 __sys_bpf+0xa9f/0x2a30 kernel/bpf/syscall.c:4931 __do_sys_bpf kernel/bpf/syscall.c:5035 [inline] __se_sys_bpf kernel/bpf/syscall.c:5033 [inline] __x64_sys_bpf+0x19/0x20 kernel/bpf/syscall.c:5033 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x64/0xce RIP: 0033:0x7f308b950ba9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f308b4d30c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f308ba6ff80 RCX: 00007f308b950ba9 RDX: 0000000000000048 RSI: 00000000200054c0 RDI: 0000000000000005 RBP: 00007f308b99c47a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f308ba6ff80 R15: 00007fffaf633dc8 ================================================================================