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WARNING: CPU: 0 PID: 15478 at kernel/bpf/verifier.c:2722 reg_bounds_sanity_check+0x390/0x45c kernel/bpf/verifier.c:2722
verifier bug: REG INVARIANTS VIOLATION (true_reg1): range bounds violation u64=[0xffffdfcd, 0xffffffffffffdfcc] s64=[0x80000000ffffdfcd, 0x7fffffffffffdfcc] u32=[0xffffdfcd, 0xffffdfcc] s32=[0xffffdfcd, 0xffffdfcc] var_off=(0xffffdfcc, 0xffffffff00000000)(1)
Modules linked in:
Kernel panic - not syncing: kernel: panic_on_warn set ...
CPU: 0 UID: 0 PID: 15478 Comm: syz.1.2517 Not tainted syzkaller #0 PREEMPT 
Hardware name: ARM-Versatile Express
Call trace: 
[<80201a24>] (dump_backtrace) from [<80201b20>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257)
 r7:00000000 r6:8281f77c r5:00000000 r4:82260afc
[<80201b08>] (show_stack) from [<8021fbe4>] (__dump_stack lib/dump_stack.c:94 [inline])
[<80201b08>] (show_stack) from [<8021fbe4>] (dump_stack_lvl+0x54/0x7c lib/dump_stack.c:120)
[<8021fb90>] (dump_stack_lvl) from [<8021fc24>] (dump_stack+0x18/0x1c lib/dump_stack.c:129)
 r5:00000000 r4:82a77d18
[<8021fc0c>] (dump_stack) from [<80202624>] (vpanic+0x10c/0x30c kernel/panic.c:430)
[<80202518>] (vpanic) from [<80202858>] (trace_suspend_resume+0x0/0xd8 kernel/panic.c:566)
 r7:803d443c
[<80202824>] (panic) from [<80254960>] (check_panic_on_warn kernel/panic.c:323 [inline])
[<80202824>] (panic) from [<80254960>] (get_taint+0x0/0x1c kernel/panic.c:318)
 r3:8280c684 r2:00000001 r1:82247518 r0:8224ef94
[<802548e8>] (check_panic_on_warn) from [<80254ac4>] (__warn+0x80/0x188 kernel/panic.c:837)
[<80254a44>] (__warn) from [<80254db4>] (warn_slowpath_fmt+0x1e8/0x1f4 kernel/panic.c:872)
 r8:00000009 r7:822673fc r6:dfa8d984 r5:84143000 r4:00000000
[<80254bd0>] (warn_slowpath_fmt) from [<803d443c>] (reg_bounds_sanity_check+0x390/0x45c kernel/bpf/verifier.c:2722)
 r10:85be8000 r9:ffffdfcd r8:80000000 r7:ffffdfcd r6:ffffdfcc r5:82267d58
 r4:85bb8a58
[<803d40ac>] (reg_bounds_sanity_check) from [<803e2908>] (reg_set_min_max kernel/bpf/verifier.c:16334 [inline])
[<803d40ac>] (reg_bounds_sanity_check) from [<803e2908>] (reg_set_min_max+0x1b0/0x26c kernel/bpf/verifier.c:16308)
 r10:00000001 r9:85bbeb48 r8:00000010 r7:85be8000 r6:85bb8b48 r5:85bb8a58
 r4:85bbea58
[<803e2758>] (reg_set_min_max) from [<803ecd10>] (check_cond_jmp_op+0x848/0x1718 kernel/bpf/verifier.c:16768)
 r10:85bbeb48 r9:85bb8800 r8:00000000 r7:8471fc00 r6:8471f800 r5:85be8000
 r4:df9f70a8 r3:85bbea58
[<803ec4c8>] (check_cond_jmp_op) from [<803f6ea0>] (do_check_insn kernel/bpf/verifier.c:19956 [inline])
[<803ec4c8>] (check_cond_jmp_op) from [<803f6ea0>] (do_check kernel/bpf/verifier.c:20093 [inline])
[<803ec4c8>] (check_cond_jmp_op) from [<803f6ea0>] (do_check_common+0x2008/0x311c kernel/bpf/verifier.c:23260)
 r10:00000015 r9:85bed000 r8:df9f7078 r7:0000000f r6:df9f7000 r5:85d0bf50
 r4:85be8000
[<803f4e98>] (do_check_common) from [<803fb770>] (do_check_main kernel/bpf/verifier.c:23343 [inline])
[<803f4e98>] (do_check_common) from [<803fb770>] (bpf_check+0x28c8/0x3038 kernel/bpf/verifier.c:24703)
 r10:00000000 r9:85be87b8 r8:85be8000 r7:00000001 r6:85bed000 r5:00000016
 r4:00000a7b
[<803f8ea8>] (bpf_check) from [<803cdc1c>] (bpf_prog_load+0x68c/0xc20 kernel/bpf/syscall.c:2979)
 r10:84143000 r9:85815730 r8:00000048 r7:dfa8dd90 r6:00000000 r5:00000000
 r4:dfa8dec0
[<803cd590>] (bpf_prog_load) from [<803cf258>] (__sys_bpf+0x42c/0x20f0 kernel/bpf/syscall.c:6029)
 r10:b5403587 r9:200054c0 r8:00000000 r7:00000000 r6:00000005 r5:dfa8de90
 r4:00000048
[<803cee2c>] (__sys_bpf) from [<803d14bc>] (__do_sys_bpf kernel/bpf/syscall.c:6139 [inline])
[<803cee2c>] (__sys_bpf) from [<803d14bc>] (sys_bpf+0x2c/0x48 kernel/bpf/syscall.c:6137)
 r10:00000182 r9:84143000 r8:8020029c r7:00000182 r6:002f6308 r5:00000000
 r4:00000000
[<803d1490>] (sys_bpf) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:67)
Exception stack(0xdfa8dfa8 to 0xdfa8dff0)
dfa0:                   00000000 00000000 00000005 200054c0 00000048 00000000
dfc0: 00000000 00000000 002f6308 00000182 002e0000 00000000 00006364 76f750bc
dfe0: 76f74ec0 76f74eb0 0001946c 00132280
Rebooting in 86400 seconds..