Oops: general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 1 UID: 0 PID: 17509 Comm: syz.7.3534 Not tainted 6.17.0-rc1-syzkaller-00022-g07866544e410-dirty #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:bpf_verify_pkcs7_signature+0x31/0x190
Code: 41 56 41 55 41 54 53 48 89 d3 49 89 f6 49 89 ff 48 bd 00 00 00 00 00 fc ff df e8 aa b0 e0 ff 4c 8d 63 08 4c 89 e0 48 c1 e8 03 <0f> b6 04 28 84 c0 0f 85 01 01 00 00 41 80 3c 24 00 74 3d 48 89 d8
RSP: 0018:ffffc900047efa08 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000080000
RDX: ffffc9002380f000 RSI: 00000000000003b6 RDI: 00000000000003b7
RBP: dffffc0000000000 R08: 0000000000000018 R09: ffffffff820b8a70
R10: ffffc900047efac0 R11: fffff520008fdf5a R12: 0000000000000008
R13: 0000000000000010 R14: ffffc900047efaa0 R15: ffffc900047efac0
FS:  00007ff35b2b86c0(0000) GS:ffff8881a3c1c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32f20000 CR3: 0000000039510000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 bpf_prog_verify_signature+0x2da/0x3b0
 bpf_prog_load+0xcc4/0x19e0
 __sys_bpf+0x507/0x860
 __x64_sys_bpf+0x7c/0x90
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff35a38ebe9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff35b2b8038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007ff35a5b5fa0 RCX: 00007ff35a38ebe9
RDX: 00000000000000a8 RSI: 0000200000000140 RDI: 0000000000000005
RBP: 00007ff35a411e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff35a5b6038 R14: 00007ff35a5b5fa0 R15: 00007ffc7ddb3148
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:bpf_verify_pkcs7_signature+0x31/0x190
Code: 41 56 41 55 41 54 53 48 89 d3 49 89 f6 49 89 ff 48 bd 00 00 00 00 00 fc ff df e8 aa b0 e0 ff 4c 8d 63 08 4c 89 e0 48 c1 e8 03 <0f> b6 04 28 84 c0 0f 85 01 01 00 00 41 80 3c 24 00 74 3d 48 89 d8
RSP: 0018:ffffc900047efa08 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000080000
RDX: ffffc9002380f000 RSI: 00000000000003b6 RDI: 00000000000003b7
RBP: dffffc0000000000 R08: 0000000000000018 R09: ffffffff820b8a70
R10: ffffc900047efac0 R11: fffff520008fdf5a R12: 0000000000000008
R13: 0000000000000010 R14: ffffc900047efaa0 R15: ffffc900047efac0
FS:  00007ff35b2b86c0(0000) GS:ffff8881a3c1c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000039510000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
