syzbot

cred                     184KB        328KB
anon_vma_chain           223KB        338KB
anon_vma                 244KB        438KB
pid                      216KB        456KB
Acpi-Operand             251KB        356KB
Acpi-ParseExt             66KB         94KB
Acpi-Parse                94KB        134KB
Acpi-State                55KB         90KB
Acpi-Namespace            52KB         52KB
shared_policy_node         12KB         12KB
numa_policy               15KB         15KB
perf_event                62KB         62KB
trace_event_file         544KB        544KB
ftrace_event_field       1008KB       1008KB
pool_workqueue          1832KB       1888KB
maple_node               480KB       1392KB
task_group                46KB         46KB
mm_struct                415KB        600KB
vmap_area               1154KB       1192KB
debug_objects_cache       1981KB       2387KB
page->ptl                101KB        153KB
kmalloc-cg-8k           1632KB       1728KB
kmalloc-cg-4k          11072KB      11744KB
kmalloc-cg-2k           8184KB       8800KB
kmalloc-cg-1k           1828KB       2368KB
kmalloc-cg-512           692KB       1232KB
kmalloc-cg-256           433KB        464KB
kmalloc-cg-128           214KB        252KB
kmalloc-cg-64            117KB        136KB
kmalloc-cg-32             90KB        180KB
kmalloc-cg-16             16KB         16KB
kmalloc-cg-8              34KB         48KB
kmalloc-cg-192            84KB         88KB
kmalloc-cg-96             68KB         68KB
kmalloc-8k              4528KB       4832KB
kmalloc-4k             19072KB      19488KB
kmalloc-2k             10888KB      12288KB
kmalloc-1k              6910KB       9568KB
kmalloc-512             7066KB       9072KB
kmalloc-256            15959KB      15960KB
kmalloc-128              773KB       1080KB
kmalloc-64              2841KB       4204KB
kmalloc-32              1702KB       2196KB
kmalloc-16               557KB        592KB
kmalloc-8                392KB        480KB
kmalloc-192             1510KB       1604KB
kmalloc-96              1339KB       1696KB
kmem_cache_node          219KB        224KB
kmem_cache               195KB        195KB
Out of memory and no killable processes...
Kernel panic - not syncing: System is deadlocked on memory
CPU: 3 UID: 0 PID: 1 Comm: init Not tainted 6.16.0-rc4-syzkaller-00348-g772b78c2abd8 #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:382
 out_of_memory+0x16e4/0x1700 mm/oom_kill.c:1175
 __alloc_pages_may_oom mm/page_alloc.c:3836 [inline]
 __alloc_pages_slowpath mm/page_alloc.c:4646 [inline]
 __alloc_frozen_pages_noprof+0x1d53/0x23f0 mm/page_alloc.c:4972
 alloc_pages_mpol+0x1fb/0x550 mm/mempolicy.c:2419
 folio_alloc_mpol_noprof+0x36/0x2f0 mm/mempolicy.c:2438
 __read_swap_cache_async+0x3b6/0x5a0 mm/swap_state.c:400
 swap_cluster_readahead+0x4e1/0x710 mm/swap_state.c:632
 swapin_readahead+0x13a/0xd60 mm/swap_state.c:811
 do_swap_page+0x635/0x65c0 mm/memory.c:4603
 handle_pte_fault mm/memory.c:6072 [inline]
 __handle_mm_fault+0x162f/0x5490 mm/memory.c:6212
 handle_mm_fault+0x589/0xd10 mm/memory.c:6381
 do_user_addr_fault+0x7a6/0x1370 arch/x86/mm/fault.c:1387
 handle_page_fault arch/x86/mm/fault.c:1476 [inline]
 exc_page_fault+0x5c/0xb0 arch/x86/mm/fault.c:1532
 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 e9 3f 09 04 00 66 66 2e 0f 1f 84 00 00 00
RSP: 0018:ffffc90000137df8 EFLAGS: 00050287
RAX: 00007f12904d0ae8 RBX: 00007f12904d0ae8 RCX: ffffc90000137d9c
RDX: 00007ffffffff000 RSI: ffffffff81f0f267 RDI: ffffffff8c157120
RBP: ffffc90000137ef8 R08: 6e3da4e5b782f7c8 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffff88801d6b8000
R13: ffffc90000137f58 R14: ffff88801d6b8000 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+0x183/0x10e0 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+0xcb/0x110 kernel/entry/common.c:114
 exit_to_user_mode_prepare include/linux/entry-common.h:330 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:414 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:449 [inline]
 do_syscall_64+0x3f6/0x490 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1290620407
Code: Unable to access opcode bytes at 0x7f12906203dd.
RSP: 002b:00007ffc7db387d0 EFLAGS: 00000202 ORIG_RAX: 00000000000000e6
RAX: 0000000000000000 RBX: 00007f12904d0c80 RCX: 00007f1290620407
RDX: 00007ffc7db38810 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
R10: 00007ffc7db38810 R11: 0000000000000202 R12: 00007f129083a490
R13: 00007ffc7db3884c R14: 00007f129087a000 R15: 00005646658e9d98
 </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:	e9 3f 09 04 00       	jmp    0x40976
  37:	66                   	data16
  38:	66                   	data16
  39:	2e                   	cs
  3a:	0f                   	.byte 0xf
  3b:	1f                   	(bad)
  3c:	84 00                	test   %al,(%rax)