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WARNING: CPU: 1 PID: 5117 at kernel/rcu/tree_stall.h:990 rcu_check_gp_start_stall+0x2cf/0x460 kernel/rcu/tree_stall.h:990
Modules linked in:
CPU: 1 PID: 5117 Comm: syz-executor332 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:rcu_check_gp_start_stall+0x2cf/0x460 kernel/rcu/tree_stall.h:990
Code: c7 60 f6 51 94 be 04 00 00 00 e8 5c 37 7c 00 b8 01 00 00 00 87 05 a1 e6 d5 12 85 c0 0f 85 1a ff ff ff 48 c7 c0 40 6c 13 8e 90 <0f> 0b 90 49 39 c7 74 47 48 c7 c0 9c 6d 87 8f 48 c1 e8 03 42 0f b6
RSP: 0018:ffffc90000a08bd8 EFLAGS: 00010046
RAX: ffffffff8e136c40 RBX: 0000000100004609 RCX: ffffffff817c0fb4
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffffff9451f660
RBP: ffffc90000a08e30 R08: 0000000000000003 R09: fffffbfff28a3ecc
R10: dffffc0000000000 R11: fffffbfff28a3ecc R12: dffffc0000000000
R13: ffff8880b953f240 R14: 0000000000000246 R15: ffffffff8e136c40
FS:  00007ff8ee0796c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002010d030 CR3: 000000002176e000 CR4: 0000000000350ef0
Call Trace:
 <IRQ>
 rcu_core+0x694/0x1830 kernel/rcu/tree.c:2466
 __do_softirq+0x2be/0x943 kernel/softirq.c:554
 invoke_softirq kernel/softirq.c:428 [inline]
 __irq_exit_rcu+0xf2/0x1c0 kernel/softirq.c:633
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:645
 instr_sysvec_call_function_single arch/x86/kernel/smp.c:266 [inline]
 sysvec_call_function_single+0xa3/0xc0 arch/x86/kernel/smp.c:266
 </IRQ>
 <TASK>
 asm_sysvec_call_function_single+0x1a/0x20 arch/x86/include/asm/idtentry.h:709
RIP: 0010:__rcu_read_unlock+0x6e/0x110 kernel/rcu/tree_plugin.h:425
Code: c0 75 76 41 89 6d 00 85 ed 75 21 4d 8d be 40 04 00 00 4c 89 f8 48 c1 e8 03 42 0f b6 04 20 84 c0 0f 85 88 00 00 00 41 83 3f 00 <75> 29 42 0f b6 04 23 84 c0 75 62 41 8b 45 00 3d 00 00 00 40 73 0f
RSP: 0018:ffffc90004577068 EFLAGS: 00000202
RAX: 0000000000000000 RBX: 1ffff1100bdf3447 RCX: ffff88805ef99e00
RDX: 0000000000000000 RSI: ffffffff8bfed2e0 RDI: ffffffff8bfed2a0
RBP: 0000000000000000 R08: ffffffff81e0f294 R09: 1ffff11004528cb4
R10: dffffc0000000000 R11: ffffed1004528cb5 R12: dffffc0000000000
R13: ffff88805ef9a23c R14: ffff88805ef99e00 R15: ffff88805ef9a240
 rcu_read_unlock include/linux/rcupdate.h:782 [inline]
 pte_unmap include/linux/pgtable.h:113 [inline]
 wp_page_copy mm/memory.c:3244 [inline]
 do_wp_page+0x229b/0x4c90 mm/memory.c:3525
 handle_pte_fault mm/memory.c:5180 [inline]
 __handle_mm_fault+0x26ad/0x72d0 mm/memory.c:5305
 handle_mm_fault+0x3c2/0x8a0 mm/memory.c:5470
 do_user_addr_fault arch/x86/mm/fault.c:1413 [inline]
 handle_page_fault arch/x86/mm/fault.c:1505 [inline]
 exc_page_fault+0x2a8/0x890 arch/x86/mm/fault.c:1563
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0010:__put_user_nocheck_4+0x7/0x20 arch/x86/lib/putuser.S:97
Code: d9 0f 01 cb 89 01 31 c9 0f 01 ca e9 43 1e 0e 00 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 01 cb <89> 01 31 c9 0f 01 ca e9 1d 1e 0e 00 66 2e 0f 1f 84 00 00 00 00 00
RSP: 0018:ffffc900045778f8 EFLAGS: 00050202
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 000000002010d030
RDX: ffff88805ef99e00 RSI: 0000000000000002 RDI: 00000000ffffffff
RBP: ffffc90004577a70 R08: ffffffff893fd633 R09: 1ffff920008aeed0
R10: dffffc0000000000 R11: fffff520008aeed1 R12: dffffc0000000000
R13: 0000000000000002 R14: 0000000000000000 R15: 000000002010d000
 ____sys_recvmsg+0x2b9/0x470 net/socket.c:2816
 ___sys_recvmsg net/socket.c:2845 [inline]
 do_recvmmsg+0x474/0xae0 net/socket.c:2939
 __sys_recvmmsg net/socket.c:3018 [inline]
 __do_sys_recvmmsg net/socket.c:3041 [inline]
 __se_sys_recvmmsg net/socket.c:3034 [inline]
 __x64_sys_recvmmsg+0x199/0x250 net/socket.c:3034
 do_syscall_64+0xfd/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7ff8ee0df519
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 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:00007ff8ee079228 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 0000000000000040 RCX: 00007ff8ee0df519
RDX: 0000000000010106 RSI: 00000000200000c0 RDI: 0000000000000003
RBP: 00007ff8ee169338 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 00007ff8ee169330
R13: 00007ff8ee136064 R14: 00007ffd00ce7d40 R15: 00007ffd00ce7e28
 </TASK>
----------------
Code disassembly (best guess):
   0:	c0 75 76 41          	shlb   $0x41,0x76(%rbp)
   4:	89 6d 00             	mov    %ebp,0x0(%rbp)
   7:	85 ed                	test   %ebp,%ebp
   9:	75 21                	jne    0x2c
   b:	4d 8d be 40 04 00 00 	lea    0x440(%r14),%r15
  12:	4c 89 f8             	mov    %r15,%rax
  15:	48 c1 e8 03          	shr    $0x3,%rax
  19:	42 0f b6 04 20       	movzbl (%rax,%r12,1),%eax
  1e:	84 c0                	test   %al,%al
  20:	0f 85 88 00 00 00    	jne    0xae
  26:	41 83 3f 00          	cmpl   $0x0,(%r15)
* 2a:	75 29                	jne    0x55 <-- trapping instruction
  2c:	42 0f b6 04 23       	movzbl (%rbx,%r12,1),%eax
  31:	84 c0                	test   %al,%al
  33:	75 62                	jne    0x97
  35:	41 8b 45 00          	mov    0x0(%r13),%eax
  39:	3d 00 00 00 40       	cmp    $0x40000000,%eax
  3e:	73 0f                	jae    0x4f