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WARNING: CPU: 1 PID: 4890 at mm/percpu.c:891 pcpu_alloc+0x78a/0xab0 mm/percpu.c:891
illegal size (532536) or align (8) for percpu allocation
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 4890 Comm: syz-executor.0 Not tainted 4.9.155+ #27
 ffff8801ac947a00 ffffffff81b47871 ffff8801ac947b00 ffffffff82a39be0
 00000000ffffffff 0000000000000001 0000000000000009 ffff8801ac947ae0
 ffffffff813f746a 0000000041b58ab3 ffffffff82e35b4a ffffffff813f7291
Call Trace:
 [<ffffffff81b47871>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81b47871>] dump_stack+0xc1/0x120 lib/dump_stack.c:51
 [<ffffffff813f746a>] panic+0x1d9/0x3bd kernel/panic.c:180
 [<ffffffff813f76ab>] __warn.cold+0x2f/0x2f kernel/panic.c:546
 [<ffffffff810dad12>] warn_slowpath_fmt+0xc2/0x100 kernel/panic.c:569
 [<ffffffff814769ba>] pcpu_alloc+0x78a/0xab0 mm/percpu.c:891
 [<ffffffff81476d08>] __alloc_percpu_gfp+0x28/0x30 mm/percpu.c:1066
 [<ffffffff813b0c1f>] alloc_extra_elems kernel/bpf/hashtab.c:133 [inline]
 [<ffffffff813b0c1f>] htab_map_alloc+0x74f/0xef0 kernel/bpf/hashtab.c:243
 [<ffffffff8139a67c>] find_and_alloc_map kernel/bpf/syscall.c:38 [inline]
 [<ffffffff8139a67c>] map_create kernel/bpf/syscall.c:259 [inline]
 [<ffffffff8139a67c>] SYSC_bpf kernel/bpf/syscall.c:1019 [inline]
 [<ffffffff8139a67c>] SyS_bpf+0x6fc/0x25d0 kernel/bpf/syscall.c:972
 [<ffffffff810056bd>] do_syscall_64+0x1ad/0x570 arch/x86/entry/common.c:285
 [<ffffffff82816a93>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
Kernel Offset: disabled
Rebooting in 86400 seconds..