==================================================================
BUG: KASAN: slab-use-after-free in min_deadline_update kernel/sched/fair.c:818 [inline]
BUG: KASAN: slab-use-after-free in min_deadline_cb_propagate kernel/sched/fair.c:825 [inline]
BUG: KASAN: slab-use-after-free in reweight_entity+0x8c7/0xa60 kernel/sched/fair.c:3660
Read of size 8 at addr ffff88807c0bd9e8 by task syz-executor.5/9471
CPU: 0 PID: 9471 Comm: syz-executor.5 Not tainted 6.6.0-rc6-syzkaller-00217-gcd8892c07876 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
print_address_description mm/kasan/report.c:364 [inline]
print_report+0xc4/0x620 mm/kasan/report.c:475
kasan_report+0xda/0x110 mm/kasan/report.c:588
min_deadline_update kernel/sched/fair.c:818 [inline]
min_deadline_cb_propagate kernel/sched/fair.c:825 [inline]
reweight_entity+0x8c7/0xa60 kernel/sched/fair.c:3660
entity_tick kernel/sched/fair.c:5317 [inline]
task_tick_fair+0xee/0xcd0 kernel/sched/fair.c:12392
scheduler_tick+0x210/0x650 kernel/sched/core.c:5657
update_process_times+0x19f/0x220 kernel/time/timer.c:2076
tick_sched_handle+0x8e/0x170 kernel/time/tick-sched.c:254
tick_sched_timer+0xe9/0x110 kernel/time/tick-sched.c:1492
__run_hrtimer kernel/time/hrtimer.c:1688 [inline]
__hrtimer_run_queues+0x647/0xc10 kernel/time/hrtimer.c:1752
hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1814
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1063 [inline]
__sysvec_apic_timer_interrupt+0x105/0x3f0 arch/x86/kernel/apic/apic.c:1080
sysvec_apic_timer_interrupt+0x42/0xc0 arch/x86/kernel/apic/apic.c:1074
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:__orc_find+0x30/0x130 arch/x86/kernel/unwind_orc.c:90
Code: fe 41 55 41 54 49 89 cc 55 53 89 d3 48 83 ec 18 48 89 7c 24 10 48 89 74 24 08 e8 ab 8e 4d 00 89 d8 31 ff 89 de 49 8d 6c 86 fc 0b 8a 4d 00 85 db 0f 84 d9 00 00 00 e8 8e 8e 4d 00 4c 39 f5 0f
RSP: 0018:ffffc90000007730 EFLAGS: 00000246
RAX: 000000000000000b RBX: 000000000000000b RCX: 0000000000000100
RDX: ffff8880204d9dc0 RSI: 000000000000000b RDI: 0000000000000000
RBP: ffffffff8edbcaac R08: 0000000000000004 R09: 0000000000004fdc
R10: 0000000000098000 R11: 0000000000000000 R12: ffffffff814fdcf6
R13: ffffffff8f545b12 R14: ffffffff8edbca84 R15: ffffc90000007835
orc_find arch/x86/kernel/unwind_orc.c:227 [inline]
unwind_next_frame+0x329/0x2390 arch/x86/kernel/unwind_orc.c:494
arch_stack_walk+0xfa/0x170 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x96/0xd0 kernel/stacktrace.c:122
kasan_save_stack+0x33/0x50 mm/kasan/common.c:45
kasan_set_track+0x25/0x30 mm/kasan/common.c:52
kasan_save_free_info+0x2b/0x40 mm/kasan/generic.c:522
____kasan_slab_free mm/kasan/common.c:236 [inline]
____kasan_slab_free+0x15b/0x1b0 mm/kasan/common.c:200
kasan_slab_free include/linux/kasan.h:164 [inline]
slab_free_hook mm/slub.c:1800 [inline]
slab_free_freelist_hook+0x114/0x1e0 mm/slub.c:1826
slab_free mm/slub.c:3809 [inline]
kmem_cache_free+0xf0/0x480 mm/slub.c:3831
kfree_skbmem+0xef/0x1b0 net/core/skbuff.c:1010
__kfree_skb net/core/skbuff.c:1068 [inline]
consume_skb net/core/skbuff.c:1283 [inline]
consume_skb+0xdf/0x170 net/core/skbuff.c:1277
mac80211_hwsim_tx_frame+0x1f3/0x2a0 drivers/net/wireless/virtual/mac80211_hwsim.c:2172
mac80211_hwsim_beacon_tx+0x41b/0x730 drivers/net/wireless/virtual/mac80211_hwsim.c:2264
__iterate_interfaces+0x2d2/0x580 net/mac80211/util.c:766
ieee80211_iterate_active_interfaces_atomic+0x71/0x1b0 net/mac80211/util.c:802
mac80211_hwsim_beacon+0x101/0x200 drivers/net/wireless/virtual/mac80211_hwsim.c:2290
__run_hrtimer kernel/time/hrtimer.c:1688 [inline]
__hrtimer_run_queues+0x203/0xc10 kernel/time/hrtimer.c:1752
hrtimer_run_softirq+0x17d/0x350 kernel/time/hrtimer.c:1769
__do_softirq+0x218/0x965 kernel/softirq.c:553
invoke_softirq kernel/softirq.c:427 [inline]
__irq_exit_rcu kernel/softirq.c:632 [inline]
irq_exit_rcu+0xb7/0x120 kernel/softirq.c:644
sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1074
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:__ref_is_percpu include/linux/percpu-refcount.h:174 [inline]
RIP: 0010:percpu_ref_tryget_many include/linux/percpu-refcount.h:243 [inline]
RIP: 0010:percpu_ref_tryget include/linux/percpu-refcount.h:266 [inline]
RIP: 0010:css_tryget include/linux/cgroup_refcnt.h:45 [inline]
RIP: 0010:css_tryget include/linux/cgroup_refcnt.h:42 [inline]
RIP: 0010:get_mem_cgroup_from_objcg+0x134/0x230 include/linux/memcontrol.h:533
Code: ff e8 a0 26 59 08 5a 85 c0 75 35 48 8d 7d 10 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 d3 00 00 00 <48> 8b 45 10 a8 03 75 4a 65 48 ff 00 e8 1b 79 ff ff e9 47 ff ff ff
RSP: 0018:ffffc90004effa68 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: ffff888026ce6b00 RCX: 0000000000000001
RDX: 1ffff1100fb5a802 RSI: ffffffff8ae933a0 RDI: ffff88807dad4010
RBP: ffff88807dad4000 R08: 0000000000000000 R09: fffffbfff23389d0
R10: ffffffff919c4e87 R11: 0000000000000000 R12: ffffed1004d9cd62
R13: dffffc0000000000 R14: ffff888026ce6b10 R15: 0000000000000001
obj_cgroup_uncharge_pages mm/memcontrol.c:3081 [inline]
refill_obj_stock+0x42a/0x7b0 mm/memcontrol.c:3356
memcg_slab_free_hook mm/slab.h:571 [inline]
slab_free mm/slub.c:3804 [inline]
__kmem_cache_free+0x22f/0x2f0 mm/slub.c:3822
kvfree+0x47/0x50 mm/util.c:653
__free_fdtable fs/file.c:36 [inline]
put_files_struct fs/file.c:451 [inline]
put_files_struct+0x284/0x360 fs/file.c:444
exit_files+0x82/0xb0 fs/file.c:464
do_exit+0xa5e/0x2a20 kernel/exit.c:869
do_group_exit+0xd4/0x2a0 kernel/exit.c:1024
get_signal+0x23ba/0x2790 kernel/signal.c:2892
arch_do_signal_or_restart+0x90/0x7f0 arch/x86/kernel/signal.c:309
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x11f/0x240 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x1d/0x60 kernel/entry/common.c:296
do_syscall_64+0x44/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fdeca47cae9
Code: Unable to access opcode bytes at 0x7fdeca47cabf.
RSP: 002b:00007fdecb125178 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007fdeca59c058 RCX: 00007fdeca47cae9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fdeca59c058
RBP: 00007fdeca59c050 R08: 00007fdecb1256c0 R09: 00007fdecb1256c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fdeca59c05c
R13: 000000000000000b R14: 00007ffced353990 R15: 00007ffced353a78
Allocated by task 4491:
kasan_save_stack+0x33/0x50 mm/kasan/common.c:45
kasan_set_track+0x25/0x30 mm/kasan/common.c:52
__kasan_slab_alloc+0x81/0x90 mm/kasan/common.c:328
kasan_slab_alloc include/linux/kasan.h:188 [inline]
slab_post_alloc_hook mm/slab.h:762 [inline]
slab_alloc_node mm/slub.c:3478 [inline]
kmem_cache_alloc_node+0x180/0x3f0 mm/slub.c:3523
alloc_task_struct_node kernel/fork.c:173 [inline]
dup_task_struct kernel/fork.c:1110 [inline]
copy_process+0x41c/0x73f0 kernel/fork.c:2327
kernel_clone+0xfd/0x920 kernel/fork.c:2909
__do_sys_clone+0xba/0x100 kernel/fork.c:3052
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
Freed by task 22:
kasan_save_stack+0x33/0x50 mm/kasan/common.c:45
kasan_set_track+0x25/0x30 mm/kasan/common.c:52
kasan_save_free_info+0x2b/0x40 mm/kasan/generic.c:522
____kasan_slab_free mm/kasan/common.c:236 [inline]
____kasan_slab_free+0x15b/0x1b0 mm/kasan/common.c:200
kasan_slab_free include/linux/kasan.h:164 [inline]
slab_free_hook mm/slub.c:1800 [inline]
slab_free_freelist_hook+0x114/0x1e0 mm/slub.c:1826
slab_free mm/slub.c:3809 [inline]
kmem_cache_free+0xf0/0x480 mm/slub.c:3831
put_task_struct include/linux/sched/task.h:136 [inline]
put_task_struct include/linux/sched/task.h:123 [inline]
delayed_put_task_struct+0x21b/0x2b0 kernel/exit.c:226
rcu_do_batch kernel/rcu/tree.c:2139 [inline]
rcu_core+0x805/0x1bb0 kernel/rcu/tree.c:2403
__do_softirq+0x218/0x965 kernel/softirq.c:553
Last potentially related work creation:
kasan_save_stack+0x33/0x50 mm/kasan/common.c:45
__kasan_record_aux_stack+0xbc/0xd0 mm/kasan/generic.c:492
__call_rcu_common.constprop.0+0x9a/0x790 kernel/rcu/tree.c:2653
put_task_struct_rcu_user kernel/exit.c:232 [inline]
put_task_struct_rcu_user+0x87/0xc0 kernel/exit.c:229
release_task+0xef7/0x1b70 kernel/exit.c:282
wait_task_zombie kernel/exit.c:1210 [inline]
wait_consider_task+0x17b5/0x4000 kernel/exit.c:1437
do_wait_thread kernel/exit.c:1500 [inline]
do_wait+0x72a/0xc70 kernel/exit.c:1617
kernel_wait4+0x16d/0x280 kernel/exit.c:1780
__do_sys_wait4+0x15b/0x170 kernel/exit.c:1808
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
Second to last potentially related work creation:
kasan_save_stack+0x33/0x50 mm/kasan/common.c:45
__kasan_record_aux_stack+0xbc/0xd0 mm/kasan/generic.c:492
task_work_add+0x88/0x2a0 kernel/task_work.c:48
scheduler_tick+0x228/0x650 kernel/sched/core.c:5662
update_process_times+0x19f/0x220 kernel/time/timer.c:2076
tick_sched_handle+0x8e/0x170 kernel/time/tick-sched.c:254
tick_sched_timer+0xe9/0x110 kernel/time/tick-sched.c:1492
__run_hrtimer kernel/time/hrtimer.c:1688 [inline]
__hrtimer_run_queues+0x647/0xc10 kernel/time/hrtimer.c:1752
hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1814
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1063 [inline]
__sysvec_apic_timer_interrupt+0x105/0x3f0 arch/x86/kernel/apic/apic.c:1080
sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1074
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
The buggy address belongs to the object at ffff88807c0bd940
which belongs to the cache task_struct of size 7360
The buggy address is located 168 bytes inside of
freed 7360-byte region [ffff88807c0bd940, ffff88807c0bf600)
The buggy address belongs to the physical page:
page:ffffea0001f02e00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7c0b8
head:ffffea0001f02e00 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0
memcg:ffff888024da5001
ksm flags: 0xfff00000000840(slab|head|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff00000000840 ffff888140008500 ffffea0001a59c00 dead000000000003
raw: 0000000000000000 0000000000040004 00000001ffffffff ffff888024da5001
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0x1d20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 5072, tgid 5072 (syz-executor.2), ts 466150982935, free_ts 466083000307
set_page_owner include/linux/page_owner.h:31 [inline]
post_alloc_hook+0x2cf/0x340 mm/page_alloc.c:1536
prep_new_page mm/page_alloc.c:1543 [inline]
get_page_from_freelist+0xee0/0x2f20 mm/page_alloc.c:3170
__alloc_pages+0x1d0/0x4a0 mm/page_alloc.c:4426
alloc_pages+0x1a9/0x270 mm/mempolicy.c:2297
alloc_slab_page mm/slub.c:1870 [inline]
allocate_slab+0x251/0x380 mm/slub.c:2017
new_slab mm/slub.c:2070 [inline]
___slab_alloc+0x8c7/0x1580 mm/slub.c:3223
__slab_alloc.constprop.0+0x56/0xa0 mm/slub.c:3322
__slab_alloc_node mm/slub.c:3375 [inline]
slab_alloc_node mm/slub.c:3468 [inline]
kmem_cache_alloc_node+0x132/0x3f0 mm/slub.c:3523
alloc_task_struct_node kernel/fork.c:173 [inline]
dup_task_struct kernel/fork.c:1110 [inline]
copy_process+0x41c/0x73f0 kernel/fork.c:2327
kernel_clone+0xfd/0x920 kernel/fork.c:2909
__do_sys_clone+0xba/0x100 kernel/fork.c:3052
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
page last free stack trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1136 [inline]
free_unref_page_prepare+0x476/0xa40 mm/page_alloc.c:2312
free_unref_page+0x33/0x3b0 mm/page_alloc.c:2405
__unfreeze_partials+0x21d/0x240 mm/slub.c:2655
qlink_free mm/kasan/quarantine.c:166 [inline]
qlist_free_all+0x6a/0x170 mm/kasan/quarantine.c:185
kasan_quarantine_reduce+0x18e/0x1d0 mm/kasan/quarantine.c:292
__kasan_slab_alloc+0x65/0x90 mm/kasan/common.c:305
kasan_slab_alloc include/linux/kasan.h:188 [inline]
slab_post_alloc_hook mm/slab.h:762 [inline]
slab_alloc_node mm/slub.c:3478 [inline]
slab_alloc mm/slub.c:3486 [inline]
__kmem_cache_alloc_lru mm/slub.c:3493 [inline]
kmem_cache_alloc_lru+0x221/0x680 mm/slub.c:3509
alloc_inode_sb include/linux/fs.h:2868 [inline]
sock_alloc_inode+0x25/0x1c0 net/socket.c:308
alloc_inode+0x5d/0x220 fs/inode.c:259
new_inode_pseudo+0x16/0x80 fs/inode.c:1004
sock_alloc+0x40/0x270 net/socket.c:634
__sock_create+0xbc/0x800 net/socket.c:1533
sock_create net/socket.c:1620 [inline]
__sys_socket_create net/socket.c:1657 [inline]
__sys_socket+0x14c/0x260 net/socket.c:1708
__do_sys_socket net/socket.c:1722 [inline]
__se_sys_socket net/socket.c:1720 [inline]
__x64_sys_socket+0x72/0xb0 net/socket.c:1720
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
Memory state around the buggy address:
ffff88807c0bd880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff88807c0bd900: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb
>ffff88807c0bd980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff88807c0bda00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88807c0bda80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
----------------
Code disassembly (best guess):
0: fe 41 55 incb 0x55(%rcx)
3: 41 54 push %r12
5: 49 89 cc mov %rcx,%r12
8: 55 push %rbp
9: 53 push %rbx
a: 89 d3 mov %edx,%ebx
c: 48 83 ec 18 sub $0x18,%rsp
10: 48 89 7c 24 10 mov %rdi,0x10(%rsp)
15: 48 89 74 24 08 mov %rsi,0x8(%rsp)
1a: e8 ab 8e 4d 00 call 0x4d8eca
1f: 89 d8 mov %ebx,%eax
21: 31 ff xor %edi,%edi
23: 89 de mov %ebx,%esi
25: 49 8d 6c 86 fc lea -0x4(%r14,%rax,4),%rbp
* 2a: e8 0b 8a 4d 00 call 0x4d8a3a <-- trapping instruction
2f: 85 db test %ebx,%ebx
31: 0f 84 d9 00 00 00 je 0x110
37: e8 8e 8e 4d 00 call 0x4d8eca
3c: 4c 39 f5 cmp %r14,%rbp
3f: 0f .byte 0xf