BUG: unable to handle page fault for address: ffffffffff600000
#PF: supervisor read access in kernel mode
#PF: error_code(0x0001) - permissions violation
PGD 6812067 P4D 6812067 PUD 6814067 PMD 6816067 PTE 8000000006809165
Oops: 0001 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 10457 Comm: syz-executor.4 Tainted: G        W         5.15.149-syzkaller-00131-g79bd336c7a94 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:copy_from_kernel_nofault+0x86/0x2e0 mm/maccess.c:37
Code: 48 89 55 d0 0f 85 ea 01 00 00 ff 02 bf 07 00 00 00 4c 89 ee e8 cb 92 d6 ff 49 83 fd 07 76 5c 4d 89 fe 49 83 c5 f8 49 83 c7 08 <49> 8b 1c 24 4c 89 f0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80
RSP: 0018:ffffc90000d2f030 EFLAGS: 00010292
RAX: 0000000000000002 RBX: 00007ffffffff000 RCX: ffff888119120000
RDX: ffff888119120b90 RSI: 0000000000000008 RDI: 0000000000000007
RBP: ffffc90000d2f068 R08: ffffffff8199a795 R09: ffffed1023224001
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffffff600000
R13: 0000000000000000 R14: ffffc90000d2f0c8 R15: ffffc90000d2f0d0
FS:  00007fb5dd7fa6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffff600000 CR3: 00000001145e6000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 bpf_probe_read_kernel_common kernel/trace/bpf_trace.c:220 [inline]
 ____bpf_probe_read_compat kernel/trace/bpf_trace.c:284 [inline]
 bpf_probe_read_compat+0x112/0x180 kernel/trace/bpf_trace.c:277
 bpf_prog_baa065642a502c00+0x64/0x6fc
 bpf_dispatcher_nop_func include/linux/bpf.h:785 [inline]
 __bpf_prog_run include/linux/filter.h:625 [inline]
 bpf_prog_run include/linux/filter.h:632 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:1880 [inline]
 bpf_trace_run6+0x18d/0x2c0 kernel/trace/bpf_trace.c:1921
 __bpf_trace_ext4_ext_remove_space_done+0x4a/0x60 include/trace/events/ext4.h:2094
 trace_ext4_ext_remove_space_done include/trace/events/ext4.h:2094 [inline]
 ext4_ext_remove_space+0x48b4/0x4a60 fs/ext4/extents.c:3006
 ext4_ext_truncate+0x19a/0x240 fs/ext4/extents.c:4448
 ext4_truncate+0x96c/0xfa0 fs/ext4/inode.c:4269
 ext4_setattr+0xf84/0x1940 fs/ext4/inode.c:5567
 notify_change+0xc7a/0xf30 fs/attr.c:505
 do_truncate+0x21c/0x300 fs/open.c:66
 handle_truncate fs/namei.c:3265 [inline]
 do_open fs/namei.c:3612 [inline]
 path_openat+0x28ed/0x2f40 fs/namei.c:3742
 do_filp_open+0x21c/0x460 fs/namei.c:3769
 do_sys_openat2+0x13f/0x830 fs/open.c:1234
 do_sys_open fs/open.c:1250 [inline]
 __do_sys_openat fs/open.c:1266 [inline]
 __se_sys_openat fs/open.c:1261 [inline]
 __x64_sys_openat+0x243/0x290 fs/open.c:1261
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fb5de47ff69
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fb5dd7fa0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fb5de5b6fa0 RCX: 00007fb5de47ff69
RDX: 0000000000007a05 RSI: 0000000020000140 RDI: ffffffffffffff9c
RBP: 00007fb5de4dd706 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000001700 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fb5de5b6fa0 R15: 00007ffdd3814a48
 </TASK>
Modules linked in:
CR2: ffffffffff600000
---[ end trace 6e3def33fa8a158a ]---
RIP: 0010:copy_from_kernel_nofault+0x86/0x2e0 mm/maccess.c:37
Code: 48 89 55 d0 0f 85 ea 01 00 00 ff 02 bf 07 00 00 00 4c 89 ee e8 cb 92 d6 ff 49 83 fd 07 76 5c 4d 89 fe 49 83 c5 f8 49 83 c7 08 <49> 8b 1c 24 4c 89 f0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80
RSP: 0018:ffffc90000d2f030 EFLAGS: 00010292
RAX: 0000000000000002 RBX: 00007ffffffff000 RCX: ffff888119120000
RDX: ffff888119120b90 RSI: 0000000000000008 RDI: 0000000000000007
RBP: ffffc90000d2f068 R08: ffffffff8199a795 R09: ffffed1023224001
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffffff600000
R13: 0000000000000000 R14: ffffc90000d2f0c8 R15: ffffc90000d2f0d0
FS:  00007fb5dd7fa6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffff600000 CR3: 00000001145e6000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
----------------
Code disassembly (best guess):
   0:	48 89 55 d0          	mov    %rdx,-0x30(%rbp)
   4:	0f 85 ea 01 00 00    	jne    0x1f4
   a:	ff 02                	incl   (%rdx)
   c:	bf 07 00 00 00       	mov    $0x7,%edi
  11:	4c 89 ee             	mov    %r13,%rsi
  14:	e8 cb 92 d6 ff       	call   0xffd692e4
  19:	49 83 fd 07          	cmp    $0x7,%r13
  1d:	76 5c                	jbe    0x7b
  1f:	4d 89 fe             	mov    %r15,%r14
  22:	49 83 c5 f8          	add    $0xfffffffffffffff8,%r13
  26:	49 83 c7 08          	add    $0x8,%r15
* 2a:	49 8b 1c 24          	mov    (%r12),%rbx <-- trapping instruction
  2e:	4c 89 f0             	mov    %r14,%rax
  31:	48 c1 e8 03          	shr    $0x3,%rax
  35:	48 b9 00 00 00 00 00 	movabs $0xdffffc0000000000,%rcx
  3c:	fc ff df
  3f:	80                   	.byte 0x80