syzbot

kmalloc-96              2308KB       2316KB
kmem_cache_node          221KB        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: 5349 Comm: kworker/u33:3 Not tainted 6.12.0-rc3-syzkaller-00087-gc964ced77262 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: hci5 hci_cmd_sync_work
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x3d/0x1f0 lib/dump_stack.c:120
 panic+0x71d/0x800 kernel/panic.c:354
 out_of_memory+0x16e6/0x1700 mm/oom_kill.c:1170
 __alloc_pages_may_oom mm/page_alloc.c:3625 [inline]
 __alloc_pages_slowpath mm/page_alloc.c:4412 [inline]
 __alloc_pages_noprof+0x1dc9/0x25a0 mm/page_alloc.c:4746
 alloc_pages_mpol_noprof+0x2c9/0x610 mm/mempolicy.c:2265
 alloc_slab_page mm/slub.c:2412 [inline]
 allocate_slab mm/slub.c:2586 [inline]
 new_slab+0x2d8/0x3f0 mm/slub.c:2631
 ___slab_alloc+0xd1d/0x16f0 mm/slub.c:3818
 __slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3908
 __slab_alloc_node mm/slub.c:3961 [inline]
 slab_alloc_node mm/slub.c:4122 [inline]
 kmem_cache_alloc_node_noprof+0xed/0x310 mm/slub.c:4186
 kmalloc_reserve+0x18b/0x2c0 net/core/skbuff.c:587
 __alloc_skb+0x164/0x380 net/core/skbuff.c:678
 alloc_skb include/linux/skbuff.h:1322 [inline]
 mgmt_alloc_skb net/bluetooth/mgmt_util.c:64 [inline]
 mgmt_send_event+0x44/0x180 net/bluetooth/mgmt_util.c:116
 mgmt_event net/bluetooth/mgmt.c:339 [inline]
 mgmt_connect_failed+0x1f9/0x3b0 net/bluetooth/mgmt.c:9801
 hci_conn_failed+0x2c6/0x340 net/bluetooth/hci_conn.c:1254
 hci_abort_conn_sync+0x7a4/0xba0 net/bluetooth/hci_sync.c:5586
 abort_conn_sync+0x197/0x360 net/bluetooth/hci_conn.c:2917
 hci_cmd_sync_work+0x1a4/0x410 net/bluetooth/hci_sync.c:328
 process_one_work+0x958/0x1b30 kernel/workqueue.c:3229
 process_scheduled_works kernel/workqueue.c:3310 [inline]
 worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
Kernel Offset: disabled
Rebooting in 86400 seconds..