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WARNING: kernel/bpf/verifier.c:2763 at reg_bounds_sanity_check+0x3c0/0x428 kernel/bpf/verifier.c:2763, CPU#1: syz.2.17/4019
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)
Modules linked in:
Kernel panic - not syncing: kernel: panic_on_warn set ...
CPU: 1 UID: 0 PID: 4019 Comm: syz.2.17 Not tainted syzkaller #0 PREEMPT 
Hardware name: ARM-Versatile Express
Call trace: 
[<80201a14>] (dump_backtrace) from [<80201b08>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257)
 r7:8281f940 r6:00000000 r5:822a7678 r4:00000001
[<80201af0>] (show_stack) from [<8021e45c>] (__dump_stack lib/dump_stack.c:94 [inline])
[<80201af0>] (show_stack) from [<8021e45c>] (dump_stack_lvl+0x5c/0x70 lib/dump_stack.c:120)
[<8021e400>] (dump_stack_lvl) from [<8021e488>] (dump_stack+0x18/0x1c lib/dump_stack.c:129)
 r7:8281f940 r6:00000000 r5:83e1b000 r4:82a80d14
[<8021e470>] (dump_stack) from [<802025f4>] (vpanic+0x114/0x320 kernel/panic.c:650)
[<802024e0>] (vpanic) from [<80202834>] (trace_suspend_resume+0x0/0x104 kernel/panic.c:787)
 r7:803e02a4
[<80202800>] (panic) from [<80250a68>] (check_panic_on_warn kernel/panic.c:524 [inline])
[<80202800>] (panic) from [<80250a68>] (get_taint+0x0/0x1c kernel/panic.c:519)
 r3:8280c544 r2:00000001 r1:8228e41c r0:82295cd4
[<802509f0>] (check_panic_on_warn) from [<80250be4>] (__warn+0x98/0x1ac kernel/panic.c:1062)
[<80250b4c>] (__warn) from [<80250ee0>] (warn_slowpath_fmt+0x1e8/0x1f4 kernel/panic.c:1097)
 r8:00000009 r7:822adfb0 r6:dfd318c4 r5:83e1b000 r4:00000000
[<80250cfc>] (warn_slowpath_fmt) from [<803e02a4>] (reg_bounds_sanity_check+0x3c0/0x428 kernel/bpf/verifier.c:2763)
 r10:85318000 r9:ffffdfcd r8:80000000 r7:ffffdfcd r6:ffffdfcc r5:822ae714
 r4:852ac230
[<803dfee4>] (reg_bounds_sanity_check) from [<803ecfcc>] (reg_set_min_max kernel/bpf/verifier.c:17104 [inline])
[<803dfee4>] (reg_bounds_sanity_check) from [<803ecfcc>] (reg_set_min_max+0x1c4/0x288 kernel/bpf/verifier.c:17071)
 r10:00000001 r9:00000010 r8:85318000 r7:851fb310 r6:852ac310 r5:852ac230
 r4:851fb230
[<803ece08>] (reg_set_min_max) from [<803fdc10>] (check_cond_jmp_op+0xc7c/0x1980 kernel/bpf/verifier.c:17548)
 r10:852ac000 r9:00000010 r8:85294180 r7:ffffffff r6:80000000 r5:8387ccc0
 r4:dfd2d0c0 r3:851fb230
[<803fcf94>] (check_cond_jmp_op) from [<80404280>] (do_check_insn kernel/bpf/verifier.c:21103 [inline])
[<803fcf94>] (check_cond_jmp_op) from [<80404280>] (do_check kernel/bpf/verifier.c:21243 [inline])
[<803fcf94>] (check_cond_jmp_op) from [<80404280>] (do_check_common+0x259c/0x3228 kernel/bpf/verifier.c:24581)
 r10:8531c000 r9:85318000 r8:dfd2d0c0 r7:8531e000 r6:00000018 r5:dfd2d078
 r4:dfd2d000
[<80401ce4>] (do_check_common) from [<80407ed4>] (do_check_main kernel/bpf/verifier.c:24664 [inline])
[<80401ce4>] (do_check_common) from [<80407ed4>] (bpf_check+0x22e4/0x2d30 kernel/bpf/verifier.c:25989)
 r10:8531e000 r9:00000001 r8:85318000 r7:00000a7b r6:853188bc r5:00000000
 r4:00000016
[<80405bf0>] (bpf_check) from [<803d95f4>] (bpf_prog_load+0x5b8/0xdec kernel/bpf/syscall.c:3089)
 r10:dfd2d000 r9:83e1b000 r8:84e3b330 r7:dfd31d18 r6:00000000 r5:00000000
 r4:dfd31eb0
[<803d903c>] (bpf_prog_load) from [<803dae1c>] (__sys_bpf+0x2d8/0x2008 kernel/bpf/syscall.c:6229)
 r10:00000005 r9:00000000 r8:dfd31e50 r7:00000048 r6:83e1b000 r5:200054c0
 r4:00000000
[<803dab44>] (__sys_bpf) from [<803dd0e4>] (__do_sys_bpf kernel/bpf/syscall.c:6342 [inline])
[<803dab44>] (__sys_bpf) from [<803dd0e4>] (sys_bpf+0x2c/0x48 kernel/bpf/syscall.c:6340)
 r10:00000182 r9:83e1b000 r8:8020029c r7:00000182 r6:00346310 r5:00000000
 r4:00000000
[<803dd0b8>] (sys_bpf) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:67)
Exception stack(0xdfd31fa8 to 0xdfd31ff0)
1fa0:                   00000000 00000000 00000005 200054c0 00000048 00000000
1fc0: 00000000 00000000 00346310 00000182 003462d8 00000000 003462d8 003462e4
1fe0: 7efb2790 7efb2780 00018ba0 001300f0
Rebooting in 86400 seconds..