kmalloc-96              1178KB       1288KB
kmem_cache_node          226KB        228KB
kmem_cache               203KB        203KB
Out of memory and no killable processes...
Kernel panic - not syncing: System is deadlocked on memory
CPU: 2 UID: 0 PID: 1 Comm: init Not tainted 6.15.0-rc2-syzkaller-00087-gcfb2e2c57aef #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x3d/0x1f0 lib/dump_stack.c:120
 panic+0x71c/0x800 kernel/panic.c:354
 out_of_memory+0x16e4/0x1700 mm/oom_kill.c:1175
 __alloc_pages_may_oom mm/page_alloc.c:3867 [inline]
 __alloc_pages_slowpath mm/page_alloc.c:4669 [inline]
 __alloc_frozen_pages_noprof+0x1c74/0x23a0 mm/page_alloc.c:4995
 alloc_pages_mpol+0x1fb/0x550 mm/mempolicy.c:2301
 folio_alloc_mpol_noprof+0x36/0x2f0 mm/mempolicy.c:2320
 __read_swap_cache_async+0x3b6/0x5a0 mm/swap_state.c:403
 swap_cluster_readahead+0x4e1/0x710 mm/swap_state.c:635
 swapin_readahead+0x13a/0xd60 mm/swap_state.c:814
 do_swap_page+0x67e/0x6030 mm/memory.c:4532
 handle_pte_fault mm/memory.c:6000 [inline]
 __handle_mm_fault+0x1056/0x2a40 mm/memory.c:6140
 handle_mm_fault+0x3fe/0xad0 mm/memory.c:6309
 do_user_addr_fault+0x7a6/0x1370 arch/x86/mm/fault.c:1388
 handle_page_fault arch/x86/mm/fault.c:1480 [inline]
 exc_page_fault+0x5c/0xc0 arch/x86/mm/fault.c:1538
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0010:__get_user_8+0x14/0x30 arch/x86/lib/getuser.S:103
Code: ca c3 cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 ba 00 f0 ff ff ff 7f 00 00 48 39 d0 48 0f 47 c2 0f 01 cb <48> 8b 10 31 c0 0f 01 ca c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00
RSP: 0018:ffffc90000137df8 EFLAGS: 00050283
RAX: 00007fa1ad5f5ea8 RBX: 00007fa1ad5f5ea8 RCX: ffffc90000137d9c
RDX: 00007ffffffff000 RSI: ffffffff81f06ed7 RDI: ffffffff8bf45100
RBP: ffffc90000137ef8 R08: 1525ca5b0a5321be R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880404c0000
R13: ffffc90000137f58 R14: ffff8880404c0000 R15: ffffc90000137e60
 rseq_get_rseq_cs_ptr_val kernel/rseq.c:248 [inline]
 rseq_get_rseq_cs kernel/rseq.c:270 [inline]
 rseq_ip_fixup kernel/rseq.c:390 [inline]
 __rseq_handle_notify_resume+0x183/0x10c0 kernel/rseq.c:438
 rseq_handle_notify_resume include/linux/rseq.h:38 [inline]
 resume_user_mode_work include/linux/resume_user_mode.h:62 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x1a3/0x2a0 kernel/entry/common.c:218
 do_syscall_64+0xda/0x260 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa1ad6ba23c
Code: Unable to access opcode bytes at 0x7fa1ad6ba212.
RSP: 002b:00007ffd911a8a40 EFLAGS: 00000246 ORIG_RAX: 0000000000000080
RAX: 0000000000000011 RBX: 00007fa1ad8f013c RCX: 00007fa1ad6ba23c
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007fa1ad8f54a8
RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000000
R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd911a8aa8 R14: 000056179a07f169 R15: 00007fa1ad92ea80
 </TASK>
Kernel Offset: disabled
Rebooting in 86400 seconds..
----------------
Code disassembly (best guess):
   0:	ca c3 cc             	lret   $0xccc3
   3:	cc                   	int3
   4:	cc                   	int3
   5:	cc                   	int3
   6:	90                   	nop
   7:	90                   	nop
   8:	90                   	nop
   9:	90                   	nop
   a:	90                   	nop
   b:	90                   	nop
   c:	90                   	nop
   d:	90                   	nop
   e:	90                   	nop
   f:	90                   	nop
  10:	90                   	nop
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
  16:	48 ba 00 f0 ff ff ff 	movabs $0x7ffffffff000,%rdx
  1d:	7f 00 00
  20:	48 39 d0             	cmp    %rdx,%rax
  23:	48 0f 47 c2          	cmova  %rdx,%rax
  27:	0f 01 cb             	stac
* 2a:	48 8b 10             	mov    (%rax),%rdx <-- trapping instruction
  2d:	31 c0                	xor    %eax,%eax
  2f:	0f 01 ca             	clac
  32:	c3                   	ret
  33:	cc                   	int3
  34:	cc                   	int3
  35:	cc                   	int3
  36:	cc                   	int3
  37:	66                   	data16
  38:	66                   	data16
  39:	2e                   	cs
  3a:	0f                   	.byte 0xf
  3b:	1f                   	(bad)
  3c:	84 00                	test   %al,(%rax)