Kernel panic - not syncing: Kernel stack overflow CPU: 0 PID: 3081 Comm: syz-executor.15 Not tainted 6.7.0-arnd-4+ #15 Hardware name: linux,dummy-virt (DT) Call trace: [4fe0] show_stack+0x2c/0x44 obj/../arch/arm64/kernel/stacktrace.c:298 [5000] __dump_stack obj/../lib/dump_stack.c:88 [inline] [5000] dump_stack_lvl+0xac/0xdc obj/../lib/dump_stack.c:106 [5030] dump_stack+0x1c/0x28 obj/../lib/dump_stack.c:113 [50c0] panic+0x1d4/0x4f0 obj/../kernel/panic.c:344 [5110] nmi_panic+0x70/0xdc obj/../kernel/panic.c:202 [5140] panic_bad_stack+0x134/0x164 obj/../arch/arm64/kernel/traps.c:900 [5190] handle_bad_stack+0x34/0x48 obj/../arch/arm64/kernel/entry-common.c:894 [52f0] el1t_64_sync+0x0/0x68 obj/../arch/arm64/kernel/entry.S:563 [4000] el1h_64_sync+0x0/0x68 obj/../arch/arm64/kernel/entry.S:587 [40c0] arch_stack_walk+0x204/0x330 obj/../arch/arm64/kernel/stacktrace.c:169 [4110] return_address+0x4c/0x94 obj/../arch/arm64/kernel/return_address.c:42 [4130] get_lock_parent_ip obj/../include/linux/ftrace.h:976 [inline] [4130] preempt_latency_start obj/../kernel/sched/core.c:5843 [inline] [4130] preempt_count_add+0x84/0x128 obj/../kernel/sched/core.c:5868 [4160] _raw_spin_lock_irqsave+0x2c/0x88 obj/../include/linux/spinlock_api_smp.h:109 [4180] cgroup_rstat_updated+0x64/0xf4 obj/../kernel/cgroup/rstat.c:45 [41d0] __mod_memcg_lruvec_state+0xd4/0x1b4 obj/../mm/memcontrol.c:715 [4220] drain_obj_stock+0x154/0x2ac obj/../include/linux/memcontrol.h:1083 [4260] refill_obj_stock+0x68/0x24c obj/../mm/memcontrol.c:3507 [42a0] obj_cgroup_uncharge+0x14/0x20 obj/../mm/memcontrol.c:3575 [42b0] __memcg_slab_free_hook+0xb4/0x198 obj/../mm/slub.c:2010 [4320] kmem_cache_free+0x1d4/0x380 obj/../mm/slub.c:2030 [4380] free_buffer_head+0x38/0xb0 obj/../fs/buffer.c:3013 [43b0] try_to_free_buffers+0xfc/0x150 obj/../fs/buffer.c:2954 [43e0] jbd2_journal_try_to_free_buffers+0xfc/0x12c obj/../fs/jbd2/transaction.c:2182 [4430] ext4_release_folio+0x60/0x154 obj/../fs/ext4/inode.c:3198 [4460] filemap_release_folio+0x98/0x118 obj/../mm/filemap.c:4086 [4510] shrink_folio_list+0x898/0x12b8 obj/../mm/vmscan.c:1369 [45f0] shrink_inactive_list+0x330/0x65c obj/../mm/vmscan.c:1914 [46e0] shrink_lruvec+0x200/0x4e0 obj/../mm/vmscan.c:2155 [4740] shrink_node_memcgs+0x134/0x2c4 obj/../mm/vmscan.c:5867 [47b0] shrink_node+0xa8/0x5dc obj/../mm/vmscan.c:5902 [4820] shrink_zones+0x190/0x3dc obj/../mm/vmscan.c:6141 [4890] do_try_to_free_pages+0xf4/0x490 obj/../mm/vmscan.c:6203 [4990] try_to_free_pages+0x50c/0x760 obj/../mm/vmscan.c:6438 [4a80] __perform_reclaim obj/../mm/page_alloc.c:3768 [inline] [4a80] __alloc_pages_direct_reclaim obj/../mm/page_alloc.c:3790 [inline] [4a80] __alloc_pages_slowpath+0x3cc/0x7dc obj/../mm/page_alloc.c:4195 [4b10] __alloc_pages+0x20c/0x2f0 obj/../mm/page_alloc.c:4580 [4b80] alloc_pages_node obj/../include/linux/gfp.h:238 [inline] [4b80] alloc_slab_page obj/../mm/slub.c:2190 [inline] [4b80] allocate_slab+0xec/0x464 obj/../mm/slub.c:2354 [4bf0] ___slab_alloc+0x350/0x5c0 obj/../mm/slub.c:2407 [4c70] __slab_alloc obj/../mm/slub.c:3625 [inline] [4c70] __slab_alloc_node obj/../mm/slub.c:3678 [inline] [4c70] slab_alloc_node obj/../mm/slub.c:3850 [inline] [4c70] kmem_cache_alloc+0x238/0x380 obj/../mm/slub.c:3867 [4d40] __kernfs_new_node+0x74/0x2c8 obj/../include/linux/slab.h:701 [4da0] kernfs_new_node+0x60/0xf0 obj/../fs/kernfs/dir.c:679 [4de0] __kernfs_create_file+0x60/0x144 obj/../fs/kernfs/file.c:1025 [4e40] sysfs_add_file_mode_ns+0xe8/0x164 obj/../fs/sysfs/file.c:307