================================================================================ UBSAN: shift-out-of-bounds in ./include/net/red.h:312:18 shift exponent 69 is too large for 64-bit type 'long unsigned int' CPU: 0 PID: 10883 Comm: syz-executor.3 Not tainted 5.12.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x141/0x1d7 lib/dump_stack.c:120 ubsan_epilogue+0xb/0x5a lib/ubsan.c:148 __ubsan_handle_shift_out_of_bounds.cold+0xb1/0x181 lib/ubsan.c:327 red_calc_qavg_from_idle_time include/net/red.h:312 [inline] red_adaptative_algo include/net/red.h:444 [inline] red_adaptative_timer.cold+0x1bd/0x26c net/sched/sch_red.c:324 call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1431 expire_timers kernel/time/timer.c:1476 [inline] __run_timers.part.0+0x67c/0xa50 kernel/time/timer.c:1745 __run_timers kernel/time/timer.c:1726 [inline] run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1758 __do_softirq+0x29b/0x9f6 kernel/softirq.c:345 invoke_softirq kernel/softirq.c:221 [inline] __irq_exit_rcu kernel/softirq.c:422 [inline] irq_exit_rcu+0x134/0x200 kernel/softirq.c:434 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1100 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:632 RIP: 0010:__sanitizer_cov_trace_cmp4+0xc/0x70 kernel/kcov.c:257 Code: 00 00 00 48 89 7c 30 e8 48 89 4c 30 f0 4c 89 54 d8 20 48 89 10 5b c3 0f 1f 80 00 00 00 00 41 89 f8 bf 03 00 00 00 4c 8b 14 24 <89> f1 65 48 8b 34 25 00 f0 01 00 e8 d4 f1 ff ff 84 c0 74 4b 48 8b RSP: 0018:ffffc90001d378e8 EFLAGS: 00000202 RAX: 0000000000040000 RBX: dffffc0000000000 RCX: ffffc9000f7d9000 RDX: 0000000000040000 RSI: 000000000002cad0 RDI: 0000000000000003 RBP: 00000000000032f7 R08: 00000000000032f7 R09: 0000000000000001 R10: ffffffff818a8e17 R11: 0000000000000000 R12: ffffffff8b292178 R13: 000000000002cad0 R14: 000000000000000d R15: 0000000000000004 btf_find_by_name_kind+0x247/0x480 kernel/bpf/btf.c:480 btf_vmlinux_map_ids_init kernel/bpf/btf.c:4385 [inline] btf_parse_vmlinux+0x4e2/0x7e0 kernel/bpf/btf.c:4457 bpf_get_btf_vmlinux kernel/bpf/verifier.c:12502 [inline] bpf_check+0x1aca/0xc610 kernel/bpf/verifier.c:12541 bpf_prog_load+0xe47/0x1f40 kernel/bpf/syscall.c:2209 __do_sys_bpf+0x1251/0x4f00 kernel/bpf/syscall.c:4388 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x465f69 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff4b5564188 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000465f69 RDX: 0000000000000048 RSI: 0000000020000080 RDI: 0000000000000005 RBP: 00000000004bfa3f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60 R13: 00007fff8c6a3acf R14: 00007ff4b5564300 R15: 0000000000022000 ================================================================================