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WARNING: CPU: 1 PID: 8184 at kernel/rcu/tree_stall.h:1010 rcu_check_gp_start_stall+0x2cf/0x460 kernel/rcu/tree_stall.h:1010
Modules linked in:
CPU: 1 UID: 0 PID: 8184 Comm: syz.4.616 Not tainted 6.12.0-rc7-syzkaller-g2c8b09ac2537 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
RIP: 0010:rcu_check_gp_start_stall+0x2cf/0x460 kernel/rcu/tree_stall.h:1010
Code: c7 c0 fa 41 9a be 04 00 00 00 e8 5c f4 83 00 b8 01 00 00 00 87 05 71 78 c6 18 85 c0 0f 85 1a ff ff ff 48 c7 c0 00 ec 93 8e 90 <0f> 0b 90 49 39 c7 74 47 48 c7 c0 0c 5e 1d 90 48 c1 e8 03 42 0f b6
RSP: 0018:ffffc90000a18bd8 EFLAGS: 00010046
RAX: ffffffff8e93ec00 RBX: 00000000ffffef3d RCX: ffffffff817b8244
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffffff9a41fac0
RBP: ffffc90000a18e30 R08: 0000000000000003 R09: fffffbfff3483f58
R10: dffffc0000000000 R11: fffffbfff3483f58 R12: dffffc0000000000
R13: dffffc0000000000 R14: 0000000000000246 R15: ffffffff8e93ec00
FS:  00007fabd0fb26c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000004 CR3: 0000000028632000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 rcu_core+0x650/0x17a0 kernel/rcu/tree.c:2818
 handle_softirqs+0x2c5/0x980 kernel/softirq.c:554
 __do_softirq kernel/softirq.c:588 [inline]
 invoke_softirq kernel/softirq.c:428 [inline]
 __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649
 instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline]
 sysvec_irq_work+0xa3/0xc0 arch/x86/kernel/irq_work.c:17
 </IRQ>
 <TASK>
 asm_sysvec_irq_work+0x1a/0x20 arch/x86/include/asm/idtentry.h:738
RIP: 0010:rcu_read_unlock_special+0x88/0x570 kernel/rcu/tree_plugin.h:693
Code: f1 f1 f1 00 f2 f2 f2 49 89 04 14 66 41 c7 44 14 09 f3 f3 41 c6 44 14 0b f3 65 44 8b 3d 49 22 88 7e 41 f7 c7 00 00 f0 00 74 49 <48> c7 44 24 20 0e 36 e0 45 4a c7 04 22 00 00 00 00 66 42 c7 44 22
RSP: 0018:ffffc90004637d20 EFLAGS: 00000206
RAX: 2e488f9c66428400 RBX: 1ffff920008c6fac RCX: ffffffff8170c9ba
RDX: dffffc0000000000 RSI: ffffffff8c0acda0 RDI: ffffffff8c6114e0
RBP: ffffc90004637df0 R08: ffffffff942d583f R09: 1ffffffff285ab07
R10: dffffc0000000000 R11: fffffbfff285ab08 R12: 1ffff920008c6fa8
R13: ffff8880304fde60 R14: ffffc90004637d60 R15: 0000000000000000
 __rcu_read_unlock+0xa1/0x110 kernel/rcu/tree_plugin.h:437
 dput+0x197/0x2b0 fs/dcache.c:856
 __fput+0x5d2/0x880 fs/file_table.c:439
 __do_sys_close fs/open.c:1567 [inline]
 __se_sys_close fs/open.c:1552 [inline]
 __x64_sys_close+0x7f/0x110 fs/open.c:1552
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fabd2d7e719
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:00007fabd0fb2038 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 00007fabd2f36208 RCX: 00007fabd2d7e719
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000010
RBP: 00007fabd2df175e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fabd2f36208 R15: 00007ffe86df4838
 </TASK>
----------------
Code disassembly (best guess):
   0:	f1                   	int1
   1:	f1                   	int1
   2:	f1                   	int1
   3:	00 f2                	add    %dh,%dl
   5:	f2 f2 49 89 04 14    	repnz repnz mov %rax,(%r12,%rdx,1)
   b:	66 41 c7 44 14 09 f3 	movw   $0xf3f3,0x9(%r12,%rdx,1)
  12:	f3
  13:	41 c6 44 14 0b f3    	movb   $0xf3,0xb(%r12,%rdx,1)
  19:	65 44 8b 3d 49 22 88 	mov    %gs:0x7e882249(%rip),%r15d        # 0x7e88226a
  20:	7e
  21:	41 f7 c7 00 00 f0 00 	test   $0xf00000,%r15d
  28:	74 49                	je     0x73
* 2a:	48 c7 44 24 20 0e 36 	movq   $0x45e0360e,0x20(%rsp) <-- trapping instruction
  31:	e0 45
  33:	4a c7 04 22 00 00 00 	movq   $0x0,(%rdx,%r12,1)
  3a:	00
  3b:	66                   	data16
  3c:	42                   	rex.X
  3d:	c7                   	.byte 0xc7
  3e:	44                   	rex.R
  3f:	22                   	.byte 0x22