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WARNING: CPU: 1 PID: 22331 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, 0xffffdfcc] s64=[0xffffdfcd, 0xffffdfcc] u32=[0xffffdfcd, 0xffffdfcc] s32=[0xffffdfcd, 0xffffdfcc] var_off=(0xffffdfcc, 0x0)(1)
Modules linked in:
Kernel panic - not syncing: kernel: panic_on_warn set ...
CPU: 1 UID: 0 PID: 22331 Comm: syz.2.4199 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 r4:82260888
[<80201b08>] (show_stack) from [<8021fb74>] (__dump_stack lib/dump_stack.c:94 [inline])
[<80201b08>] (show_stack) from [<8021fb74>] (dump_stack_lvl+0x54/0x7c lib/dump_stack.c:120)
[<8021fb20>] (dump_stack_lvl) from [<8021fbb4>] (dump_stack+0x18/0x1c lib/dump_stack.c:129)
 r5:00000000 r4:82a77d18
[<8021fb9c>] (dump_stack) from [<80202624>] (vpanic+0x10c/0x30c kernel/panic.c:430)
[<80202518>] (vpanic) from [<80202858>] (trace_suspend_resume+0x0/0xd8 kernel/panic.c:566)
 r7:803d4454
[<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 r1:822472a4 r0:8224ed20
[<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 r7:82267188 r6:dfb09984 r5:859c6c00 r4:00000000
[<80254bd0>] (warn_slowpath_fmt) from [<803d4454>] (reg_bounds_sanity_check+0x390/0x45c kernel/bpf/verifier.c:2722)
 r10:86368000 r9:ffffdfcd r8:00000000 r7:ffffdfcd r6:ffffdfcc r5:82267ae4
 r4:84863258
[<803d40c4>] (reg_bounds_sanity_check) from [<803e2920>] (reg_set_min_max kernel/bpf/verifier.c:16334 [inline])
[<803d40c4>] (reg_bounds_sanity_check) from [<803e2920>] (reg_set_min_max+0x1b0/0x26c kernel/bpf/verifier.c:16308)
 r10:00000001 r9:84890b48 r8:00000010 r7:86368000 r6:84863348 r5:84863258
 r4:84890a58
[<803e2770>] (reg_set_min_max) from [<803ecd28>] (check_cond_jmp_op+0x848/0x1718 kernel/bpf/verifier.c:16768)
 r10:84890b48 r9:84863000 r8:00000000 r7:8390d980 r6:8390de80 r5:86368000
 r4:df8770a8 r3:84890a58
[<803ec4e0>] (check_cond_jmp_op) from [<803f6eb8>] (do_check_insn kernel/bpf/verifier.c:19956 [inline])
[<803ec4e0>] (check_cond_jmp_op) from [<803f6eb8>] (do_check kernel/bpf/verifier.c:20093 [inline])
[<803ec4e0>] (check_cond_jmp_op) from [<803f6eb8>] (do_check_common+0x2008/0x311c kernel/bpf/verifier.c:23260)
 r10:00000015 r9:8636d000 r8:df877078 r7:0000000f r6:df877000 r5:8390d180
 r4:86368000
[<803f4eb0>] (do_check_common) from [<803fb788>] (do_check_main kernel/bpf/verifier.c:23343 [inline])
[<803f4eb0>] (do_check_common) from [<803fb788>] (bpf_check+0x28c8/0x3038 kernel/bpf/verifier.c:24703)
 r10:00000000 r9:863687b8 r8:86368000 r7:00000001 r6:8636d000 r5:00000016
 r4:00000a7b
[<803f8ec0>] (bpf_check) from [<803cdc34>] (bpf_prog_load+0x68c/0xc20 kernel/bpf/syscall.c:2979)
 r10:859c6c00 r9:84760330 r8:00000048 r7:dfb09d90 r6:00000000 r5:00000000
 r4:dfb09ec0
[<803cd5a8>] (bpf_prog_load) from [<803cf270>] (__sys_bpf+0x42c/0x20f0 kernel/bpf/syscall.c:6029)
 r10:b5403587 r9:200054c0 r8:00000000 r7:00000000 r6:00000005 r5:dfb09e90
 r4:00000048
[<803cee44>] (__sys_bpf) from [<803d14d4>] (__do_sys_bpf kernel/bpf/syscall.c:6139 [inline])
[<803cee44>] (__sys_bpf) from [<803d14d4>] (sys_bpf+0x2c/0x48 kernel/bpf/syscall.c:6137)
 r10:00000182 r9:859c6c00 r8:8020029c r7:00000182 r6:002f6448 r5:00000000
 r4:00000000
[<803d14a8>] (sys_bpf) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:67)
Exception stack(0xdfb09fa8 to 0xdfb09ff0)
9fa0:                   00000000 00000000 00000005 200054c0 00000048 00000000
9fc0: 00000000 00000000 002f6448 00000182 002e0000 00000000 00006364 76f2c0bc
9fe0: 76f2bec0 76f2beb0 0001946c 00132280
Rebooting in 86400 seconds..