Oops: general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 1 UID: 0 PID: 11654 Comm: syz.9.953 Not tainted 6.13.0-rc4-syzkaller-00069-g8379578b11d5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:_compound_head include/linux/page-flags.h:242 [inline]
RIP: 0010:put_page+0x23/0x260 include/linux/mm.h:1553
Code: 90 90 90 90 90 90 90 55 41 57 41 56 53 49 89 fe 48 bd 00 00 00 00 00 fc ff df e8 a8 30 12 f8 49 8d 5e 08 48 89 d8 48 c1 e8 03 <80> 3c 28 00 74 08 48 89 df e8 5f 98 78 f8 48 8b 1b 48 89 de 48 83
RSP: 0018:ffffc90000a18918 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 0000000000000008 RCX: ffff88801efcbc00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff898cd6ad R09: 1ffff1100bd6f94c
R10: dffffc0000000000 R11: ffffed100bd6f94d R12: 0000000000000007
R13: ffff88805eb7ca42 R14: 0000000000000000 R15: 0000000000000000
FS:  00007fce9340c6c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d01fffc CR3: 000000002f86e000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 skb_page_unref include/linux/skbuff_ref.h:43 [inline]
 __skb_frag_unref include/linux/skbuff_ref.h:56 [inline]
 skb_release_data+0x483/0x8a0 net/core/skbuff.c:1119
 skb_release_all net/core/skbuff.c:1190 [inline]
 __kfree_skb+0x55/0x70 net/core/skbuff.c:1204
 tcp_rtx_queue_purge net/ipv4/tcp.c:3251 [inline]
 tcp_write_queue_purge+0x212/0x2f0 net/ipv4/tcp.c:3264
 tcp_done_with_error+0x41/0xc0 net/ipv4/tcp_input.c:4515
 tcp_write_err net/ipv4/tcp_timer.c:77 [inline]
 tcp_write_timeout net/ipv4/tcp_timer.c:294 [inline]
 tcp_retransmit_timer+0x1659/0x31f0 net/ipv4/tcp_timer.c:598
 tcp_write_timer+0x166/0x2e0 net/ipv4/tcp_timer.c:735
 call_timer_fn+0x187/0x650 kernel/time/timer.c:1793
 expire_timers kernel/time/timer.c:1844 [inline]
 __run_timers kernel/time/timer.c:2418 [inline]
 __run_timer_base+0x66a/0x8e0 kernel/time/timer.c:2430
 run_timer_base kernel/time/timer.c:2439 [inline]
 run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2449
 handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561
 __do_softirq kernel/softirq.c:595 [inline]
 invoke_softirq kernel/softirq.c:435 [inline]
 __irq_exit_rcu+0xf7/0x220 kernel/softirq.c:662
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:678
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:check_kcov_mode kernel/kcov.c:183 [inline]
RIP: 0010:write_comp_data kernel/kcov.c:246 [inline]
RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x18/0x90 kernel/kcov.c:314
Code: 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 4c 8b 04 24 65 48 8b 14 25 00 d6 03 00 65 8b 05 80 5d 64 7e <25> 00 01 ff 00 74 10 3d 00 01 00 00 75 5b 83 ba 1c 16 00 00 00 74
RSP: 0018:ffffc90002ea72f8 EFLAGS: 00000212
RAX: 0000000080000002 RBX: ffffea0001f8aa34 RCX: ffffffff81ef38fd
RDX: ffff88801efcbc00 RSI: 0000000000000080 RDI: 0000000000000080
RBP: 0000000000000080 R08: ffffffff81ef392c R09: 1ffffd40003f1546
R10: dffffc0000000000 R11: fffff940003f1547 R12: ffffea0001f8aa00
R13: ffff8880b8738880 R14: ffff88813fffbc80 R15: dffffc0000000000
 folio_get include/linux/mm.h:1455 [inline]
 mlock_new_folio+0x34c/0x910 mm/mlock.c:279
 do_anonymous_page mm/memory.c:4856 [inline]
 do_pte_missing mm/memory.c:3977 [inline]
 handle_pte_fault+0x488b/0x5ed0 mm/memory.c:5801
 __handle_mm_fault mm/memory.c:5944 [inline]
 handle_mm_fault+0x1106/0x1bb0 mm/memory.c:6112
 faultin_page mm/gup.c:1196 [inline]
 __get_user_pages+0x1c82/0x49e0 mm/gup.c:1494
 populate_vma_page_range+0x264/0x330 mm/gup.c:1932
 __mm_populate+0x27a/0x460 mm/gup.c:2035
 do_mlock+0x61f/0x7e0 mm/mlock.c:653
 __do_sys_mlock mm/mlock.c:661 [inline]
 __se_sys_mlock mm/mlock.c:659 [inline]
 __x64_sys_mlock+0x60/0x70 mm/mlock.c:659
 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: 0033:0x7fce92585d29
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:00007fce9340c038 EFLAGS: 00000246 ORIG_RAX: 0000000000000095
RAX: ffffffffffffffda RBX: 00007fce92775fa0 RCX: 00007fce92585d29
RDX: 0000000000000000 RSI: 0000000000800000 RDI: 0000000020000000
RBP: 00007fce92601b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fce92775fa0 R15: 00007fce9289fa28
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:_compound_head include/linux/page-flags.h:242 [inline]
RIP: 0010:put_page+0x23/0x260 include/linux/mm.h:1553
Code: 90 90 90 90 90 90 90 55 41 57 41 56 53 49 89 fe 48 bd 00 00 00 00 00 fc ff df e8 a8 30 12 f8 49 8d 5e 08 48 89 d8 48 c1 e8 03 <80> 3c 28 00 74 08 48 89 df e8 5f 98 78 f8 48 8b 1b 48 89 de 48 83
RSP: 0018:ffffc90000a18918 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 0000000000000008 RCX: ffff88801efcbc00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff898cd6ad R09: 1ffff1100bd6f94c
R10: dffffc0000000000 R11: ffffed100bd6f94d R12: 0000000000000007
R13: ffff88805eb7ca42 R14: 0000000000000000 R15: 0000000000000000
FS:  00007fce9340c6c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d01fffc CR3: 000000002f86e000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	90                   	nop
   1:	90                   	nop
   2:	90                   	nop
   3:	90                   	nop
   4:	90                   	nop
   5:	90                   	nop
   6:	90                   	nop
   7:	55                   	push   %rbp
   8:	41 57                	push   %r15
   a:	41 56                	push   %r14
   c:	53                   	push   %rbx
   d:	49 89 fe             	mov    %rdi,%r14
  10:	48 bd 00 00 00 00 00 	movabs $0xdffffc0000000000,%rbp
  17:	fc ff df
  1a:	e8 a8 30 12 f8       	call   0xf81230c7
  1f:	49 8d 5e 08          	lea    0x8(%r14),%rbx
  23:	48 89 d8             	mov    %rbx,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	80 3c 28 00          	cmpb   $0x0,(%rax,%rbp,1) <-- trapping instruction
  2e:	74 08                	je     0x38
  30:	48 89 df             	mov    %rbx,%rdi
  33:	e8 5f 98 78 f8       	call   0xf8789897
  38:	48 8b 1b             	mov    (%rbx),%rbx
  3b:	48 89 de             	mov    %rbx,%rsi
  3e:	48                   	rex.W
  3f:	83                   	.byte 0x83