================================================================================ UBSAN: shift-out-of-bounds in kernel/bpf/verifier.c:13571:63 shift exponent 1073741824 is too large for 32-bit type 's32' (aka 'int') CPU: 0 PID: 5465 Comm: syz-executor.0 Not tainted 6.7.0-rc6-syzkaller-00078-ga4aebe936554 #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+0x1e3/0x2d0 lib/dump_stack.c:106 ubsan_epilogue lib/ubsan.c:217 [inline] __ubsan_handle_shift_out_of_bounds+0x3bf/0x420 lib/ubsan.c:387 scalar32_min_max_arsh+0x564/0x5f0 kernel/bpf/verifier.c:13571 adjust_scalar_min_max_vals kernel/bpf/verifier.c:13759 [inline] adjust_reg_min_max_vals+0x3d13/0x64c0 kernel/bpf/verifier.c:13860 check_alu_op kernel/bpf/verifier.c:14092 [inline] do_check+0x9863/0xef60 kernel/bpf/verifier.c:17517 do_check_common+0xa87/0x12a0 kernel/bpf/verifier.c:20177 do_check_main+0x3e/0x120 kernel/bpf/verifier.c:20240 bpf_check+0x7407/0x187e0 kernel/bpf/verifier.c:20877 bpf_prog_load+0x11cf/0x1c20 kernel/bpf/syscall.c:2716 __sys_bpf+0x2f0/0x640 kernel/bpf/syscall.c:5383 __do_sys_bpf kernel/bpf/syscall.c:5487 [inline] __se_sys_bpf kernel/bpf/syscall.c:5485 [inline] __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:5485 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7f9249e7cce9 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:00007f924ac2a0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f9249f9bf80 RCX: 00007f9249e7cce9 RDX: 0000000000000048 RSI: 00000000200054c0 RDI: 0000000000000005 RBP: 00007f9249ec947a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f9249f9bf80 R15: 00007ffe52c562b8 ================================================================================