================================================================================ UBSAN: shift-out-of-bounds in ./include/net/red.h:312:18 shift exponent 193 is too large for 64-bit type 'long unsigned int' CPU: 0 PID: 28158 Comm: syz-executor.2 Not tainted 5.12.0-rc3-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:__alloc_pages_nodemask+0x377/0x730 mm/page_alloc.c:5032 Code: 00 48 8b 84 24 b8 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 5c 03 00 00 48 81 c4 c0 00 00 00 4c 89 e8 5b 5d 41 5c 41 5d 41 5e <41> 5f c3 44 89 f8 0d 00 00 10 00 89 04 24 65 8b 05 24 f9 52 7e a9 RSP: 0018:ffffc90011927510 EFLAGS: 00000286 RAX: ffffea000115ff00 RBX: 0000000000000000 RCX: 0000000000000001 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffffff8fe56940 R08: 0000000000000000 R09: ffffffff8dc61fcf R10: fffffbfff1b8c3f9 R11: 0000000000000100 R12: 0000000000100cca R13: ffffffff8fe56946 R14: 0000000000000000 R15: 0000000000100cca alloc_pages_vma+0xdd/0x770 mm/mempolicy.c:2240 shmem_alloc_page+0x11f/0x1f0 mm/shmem.c:1563 shmem_alloc_and_acct_page+0x161/0x8a0 mm/shmem.c:1588 shmem_getpage_gfp+0x558/0x2480 mm/shmem.c:1895 shmem_fault+0x1fe/0x870 mm/shmem.c:2116 __do_fault+0x10d/0x4d0 mm/memory.c:3637 do_read_fault mm/memory.c:3939 [inline] do_fault mm/memory.c:4067 [inline] handle_pte_fault mm/memory.c:4318 [inline] __handle_mm_fault+0x2c87/0x4f70 mm/memory.c:4453 handle_mm_fault+0x1bc/0x7e0 mm/memory.c:4551 faultin_page mm/gup.c:850 [inline] __get_user_pages+0x7cf/0x1490 mm/gup.c:1069 populate_vma_page_range+0x24d/0x330 mm/gup.c:1402 __mm_populate+0x1ea/0x3e0 mm/gup.c:1450 mm_populate include/linux/mm.h:2570 [inline] vm_mmap_pgoff+0x20e/0x290 mm/util.c:524 ksys_mmap_pgoff+0xe4/0x620 mm/mmap.c:1632 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x466459 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:00007fee0c44c188 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 000000000056c008 RCX: 0000000000466459 RDX: 0000000001000007 RSI: 0000000000b36000 RDI: 0000000020000000 RBP: 00000000004bf9fb R08: ffffffffffffffff R09: 0000000000000000 R10: 0800000000009031 R11: 0000000000000246 R12: 000000000056c008 R13: 0000000000a9fb1f R14: 00007fee0c44c300 R15: 0000000000022000 ================================================================================