------------[ cut here ]------------
WARNING: CPU: 1 PID: 4157 at mm/maccess.c:226 copy_from_user_nofault+0x15c/0x1c0
Modules linked in:
CPU: 1 PID: 4157 Comm: syz-executor Not tainted 5.15.173-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
RIP: 0010:copy_from_user_nofault+0x15c/0x1c0 mm/maccess.c:226
Code: db 48 c7 c0 f2 ff ff ff 48 0f 44 c5 eb 0c e8 cb c6 d5 ff 48 c7 c0 f2 ff ff ff 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 b4 c6 d5 ff <0f> 0b e9 1e ff ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c ef fe ff
RSP: 0000:ffffc90000dd0988 EFLAGS: 00010246
RAX: ffffffff81aaacec RBX: 0000000000000000 RCX: ffff88807d123b80
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff81aaabfd R09: fffffbfff20ec821
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: ffffc90000dd09e8
FS:  000055557385e500(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5eff6be080 CR3: 000000002bb2e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 bpf_probe_read_user_common kernel/trace/bpf_trace.c:157 [inline]
 ____bpf_probe_read_user kernel/trace/bpf_trace.c:166 [inline]
 bpf_probe_read_user+0x26/0x70 kernel/trace/bpf_trace.c:163
 bpf_prog_690f12e098ef46de+0x32/0xbcc
 bpf_dispatcher_nop_func include/linux/bpf.h:790 [inline]
 __bpf_prog_run include/linux/filter.h:628 [inline]
 bpf_prog_run include/linux/filter.h:635 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:1878 [inline]
 bpf_trace_run1+0x168/0x2f0 kernel/trace/bpf_trace.c:1914
 trace_consume_skb+0x16f/0x1d0 include/trace/events/skb.h:71
 napi_consume_skb+0x129/0x270 net/core/skbuff.c:984
 free_old_xmit_skbs+0x122/0x2c0 drivers/net/virtio_net.c:1519
 virtnet_poll_tx+0x1de/0x500 drivers/net/virtio_net.c:1686
 __napi_poll+0xc7/0x440 net/core/dev.c:7043
 napi_poll net/core/dev.c:7110 [inline]
 net_rx_action+0x617/0xda0 net/core/dev.c:7200
 handle_softirqs+0x3a7/0x930 kernel/softirq.c:558
 __do_softirq kernel/softirq.c:592 [inline]
 invoke_softirq kernel/softirq.c:432 [inline]
 __irq_exit_rcu+0x157/0x240 kernel/softirq.c:641
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:653
 common_interrupt+0xb3/0xd0 arch/x86/kernel/irq.c:240
 </IRQ>
 <TASK>
 asm_common_interrupt+0x22/0x40 arch/x86/include/asm/idtentry.h:667
RIP: 0010:__mnt_is_readonly fs/namespace.c:271 [inline]
RIP: 0010:__mnt_want_write_file+0x92/0x150 fs/namespace.c:401
Code: 69 a2 ff 48 89 df 5b 41 5e 5d e9 29 f9 ff ff 48 8d 6b 10 48 89 e8 48 c1 e8 03 42 0f b6 04 30 84 c0 0f 85 9d 00 00 00 8b 6d 00 <89> ee 83 e6 40 31 ff e8 32 6c a2 ff 83 e5 40 75 57 48 83 c3 08 48
RSP: 0000:ffffc90002d47980 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff88802d366020 RCX: ffff88807d123b80
RDX: ffff88807d123b80 RSI: 0000000000010000 RDI: 0000000000000000
RBP: 0000000000000020 R08: ffffffff81de0a75 R09: fffffbfff20ec83d
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000006
R13: dffffc0000000000 R14: dffffc0000000000 R15: 0000000000000000
 file_update_time+0x366/0x460 fs/inode.c:2055
 ext4_page_mkwrite+0x1cc/0x1290 fs/ext4/inode.c:6128
 do_page_mkwrite+0x1a9/0x440 mm/memory.c:2920
 wp_page_shared+0x179/0x690 mm/memory.c:3257
 handle_pte_fault mm/memory.c:4666 [inline]
 __handle_mm_fault mm/memory.c:4783 [inline]
 handle_mm_fault+0x2a3d/0x5960 mm/memory.c:4881
 do_user_addr_fault arch/x86/mm/fault.c:1357 [inline]
 handle_page_fault arch/x86/mm/fault.c:1445 [inline]
 exc_page_fault+0x271/0x700 arch/x86/mm/fault.c:1501
 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:606
RIP: 0033:0x7f5f016998fc
Code: 49 89 d1 48 c1 ea 03 48 83 c6 08 49 c1 e9 06 48 c1 e0 0e 48 89 d1 48 01 f8 41 81 e1 ff 3f 00 00 83 e1 07 bf 01 00 00 00 d3 e7 <41> 08 bc 01 20 20 00 00 49 39 f0 0f 85 8b fe ff ff 48 8b 5c 24 58
RSP: 002b:00007ffdc18f1d10 EFLAGS: 00010202
RAX: 00007f5eff6ba000 RBX: 00005555738803c0 RCX: 0000000000000007
RDX: 1ffffffff1110307 RSI: 0000555573875288 RDI: 0000000000000080
RBP: 00007ffdc18f2210 R08: 0000555573875290 R09: 0000000000002060
R10: 00007ffdc1992080 R11: 0000000000000246 R12: 00007ffdc18f2060
R13: 0000000000000005 R14: 00007ffdc18f1d80 R15: 00007ffdc18f1e50
 </TASK>
----------------
Code disassembly (best guess):
   0:	69 a2 ff 48 89 df 5b 	imul   $0x5d5e415b,-0x2076b701(%rdx),%esp
   7:	41 5e 5d
   a:	e9 29 f9 ff ff       	jmp    0xfffff938
   f:	48 8d 6b 10          	lea    0x10(%rbx),%rbp
  13:	48 89 e8             	mov    %rbp,%rax
  16:	48 c1 e8 03          	shr    $0x3,%rax
  1a:	42 0f b6 04 30       	movzbl (%rax,%r14,1),%eax
  1f:	84 c0                	test   %al,%al
  21:	0f 85 9d 00 00 00    	jne    0xc4
  27:	8b 6d 00             	mov    0x0(%rbp),%ebp
* 2a:	89 ee                	mov    %ebp,%esi <-- trapping instruction
  2c:	83 e6 40             	and    $0x40,%esi
  2f:	31 ff                	xor    %edi,%edi
  31:	e8 32 6c a2 ff       	call   0xffa26c68
  36:	83 e5 40             	and    $0x40,%ebp
  39:	75 57                	jne    0x92
  3b:	48 83 c3 08          	add    $0x8,%rbx
  3f:	48                   	rex.W