Oops: general protection fault, probably for non-canonical address 0xdffffc0000000011: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000088-0x000000000000008f]
CPU: 0 UID: 0 PID: 5746 Comm: syz.3.20 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:mas_root lib/maple_tree.c:759 [inline]
RIP: 0010:mas_start+0xfe/0x550 lib/maple_tree.c:1179
Code: 4c 02 00 00 c6 43 4c 00 48 8b 44 24 28 42 80 3c 30 00 74 08 48 89 df e8 70 61 87 f6 4c 8b 23 49 83 c4 48 4c 89 e0 48 c1 e8 03 <42> 80 3c 30 00 74 08 4c 89 e7 e8 53 61 87 f6 4d 8b 24 24 e8 aa 9b
RSP: 0000:ffffc900034ff898 EFLAGS: 00010206
RAX: 0000000000000011 RBX: ffffc900034ff960 RCX: 1ffff9200069ff35
RDX: 1ffff9200069ff2c RSI: 0000000000000001 RDI: ffffc900034ff988
RBP: 0000000000000001 R08: ffffffff8baf8bfa R09: 0000000000000000
R10: 0000000000000000 R11: ffffffff8e959c20 R12: 0000000000000088
R13: ffffc900034ff960 R14: dffffc0000000000 R15: 1ffff9200069ff35
FS: 0000000000000000(0000) GS:ffff88808c815000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f53e2bc58d2 CR3: 000000000e746000 CR4: 0000000000352ef0
Call Trace:
<TASK>
mtree_load+0x1f5/0x780 lib/maple_tree.c:5657
vma_lookup include/linux/mm.h:4238 [inline]
__in_uprobe_trampoline arch/x86/kernel/uprobes.c:766 [inline]
__is_optimized arch/x86/kernel/uprobes.c:1056 [inline]
is_optimized arch/x86/kernel/uprobes.c:1067 [inline]
set_orig_insn+0x226/0x310 arch/x86/kernel/uprobes.c:1098
register_for_each_vma+0xa0e/0xb80 kernel/events/uprobes.c:1318
uprobe_unregister_nosync+0x118/0x1b0 kernel/events/uprobes.c:1343
bpf_uprobe_unregister kernel/trace/bpf_trace.c:2982 [inline]
bpf_uprobe_multi_link_release+0x99/0x1a0 kernel/trace/bpf_trace.c:2993
bpf_link_free+0xdd/0x3e0 kernel/bpf/syscall.c:3395
bpf_link_put_direct kernel/bpf/syscall.c:3448 [inline]
bpf_link_release+0x6b/0x80 kernel/bpf/syscall.c:3455
__fput+0x418/0xa50 fs/file_table.c:512
task_work_run+0x1d9/0x270 kernel/task_work.c:233
exit_task_work include/linux/task_work.h:40 [inline]
do_exit+0x73a/0x2360 kernel/exit.c:1004
__do_sys_exit kernel/exit.c:1114 [inline]
__se_sys_exit kernel/exit.c:1112 [inline]
__x64_sys_exit+0x40/0x40 kernel/exit.c:1112
x64_sys_call+0x2231/0x2240 arch/x86/include/generated/asm/syscalls_64.h:61
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd88699ce59
Code: Unable to access opcode bytes at 0x7fd88699ce2f.
RSP: 002b:00007fffde6e40f8 EFLAGS: 00000246 ORIG_RAX: 000000000000003c
RAX: ffffffffffffffda RBX: 00007fd886c15fa0 RCX: 00007fd88699ce59
RDX: 0000555576db0808 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fd886a32e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd886c15fac R14: 00007fd886c15fa0 R15: 00007fd886c15fa0
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:mas_root lib/maple_tree.c:759 [inline]
RIP: 0010:mas_start+0xfe/0x550 lib/maple_tree.c:1179
Code: 4c 02 00 00 c6 43 4c 00 48 8b 44 24 28 42 80 3c 30 00 74 08 48 89 df e8 70 61 87 f6 4c 8b 23 49 83 c4 48 4c 89 e0 48 c1 e8 03 <42> 80 3c 30 00 74 08 4c 89 e7 e8 53 61 87 f6 4d 8b 24 24 e8 aa 9b
RSP: 0000:ffffc900034ff898 EFLAGS: 00010206
RAX: 0000000000000011 RBX: ffffc900034ff960 RCX: 1ffff9200069ff35
RDX: 1ffff9200069ff2c RSI: 0000000000000001 RDI: ffffc900034ff988
RBP: 0000000000000001 R08: ffffffff8baf8bfa R09: 0000000000000000
R10: 0000000000000000 R11: ffffffff8e959c20 R12: 0000000000000088
R13: ffffc900034ff960 R14: dffffc0000000000 R15: 1ffff9200069ff35
FS: 0000000000000000(0000) GS:ffff88808c815000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa41db45000 CR3: 0000000012fed000 CR4: 0000000000352ef0
----------------
Code disassembly (best guess):
0: 4c 02 00 rex.WR add (%rax),%r8b
3: 00 c6 add %al,%dh
5: 43 rex.XB
6: 4c 00 48 8b rex.WR add %r9b,-0x75(%rax)
a: 44 24 28 rex.R and $0x28,%al
d: 42 80 3c 30 00 cmpb $0x0,(%rax,%r14,1)
12: 74 08 je 0x1c
14: 48 89 df mov %rbx,%rdi
17: e8 70 61 87 f6 call 0xf687618c
1c: 4c 8b 23 mov (%rbx),%r12
1f: 49 83 c4 48 add $0x48,%r12
23: 4c 89 e0 mov %r12,%rax
26: 48 c1 e8 03 shr $0x3,%rax
* 2a: 42 80 3c 30 00 cmpb $0x0,(%rax,%r14,1) <-- trapping instruction
2f: 74 08 je 0x39
31: 4c 89 e7 mov %r12,%rdi
34: e8 53 61 87 f6 call 0xf687618c
39: 4d 8b 24 24 mov (%r12),%r12
3d: e8 .byte 0xe8
3e: aa stos %al,%es:(%rdi)
3f: 9b fwait