==================================================================
BUG: KASAN: slab-use-after-free in __update_min_deadline kernel/sched/fair.c:805 [inline]
BUG: KASAN: slab-use-after-free in min_deadline_update kernel/sched/fair.c:819 [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+0x8e3/0xa60 kernel/sched/fair.c:3660
Read of size 8 at addr ffff88802fdb00b0 by task syz-executor.3/6295
CPU: 0 PID: 6295 Comm: syz-executor.3 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
__update_min_deadline kernel/sched/fair.c:805 [inline]
min_deadline_update kernel/sched/fair.c:819 [inline]
min_deadline_cb_propagate kernel/sched/fair.c:825 [inline]
reweight_entity+0x8e3/0xa60 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:jhash2 include/linux/jhash.h:129 [inline]
RIP: 0010:hash_stack lib/stackdepot.c:322 [inline]
RIP: 0010:__stack_depot_save+0x95/0x510 lib/stackdepot.c:382
Code: 89 d8 4c 89 f1 03 41 08 83 ee 03 48 83 c1 0c 03 59 f4 44 03 41 f8 89 df 89 c3 29 c7 c1 c3 04 44 01 c0 31 fb 44 89 c7 41 89 d8 <29> df 01 c3 41 c1 c0 06 41 31 f8 44 89 c7 44 29 c0 41 01 d8 c1 c7
RSP: 0018:ffffc90000007848 EFLAGS: 00000282
RAX: 000000007a09ee5f RBX: 000000008648c13d RCX: ffffc90000007928
RDX: 0000000000000011 RSI: 0000000000000004 RDI: 000000005bbccd0d
RBP: ffffc900000078b0 R08: 000000008648c13d R09: 0000000000000000
R10: 0000000000000000 R11: 0000008a1ce1ece8 R12: 0000000000000001
R13: 0000000000000000 R14: ffffc900000078b0 R15: 0000000000000011
kasan_save_stack+0x43/0x50 mm/kasan/common.c:46
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
skb_kfree_head net/core/skbuff.c:943 [inline]
skb_kfree_head net/core/skbuff.c:940 [inline]
skb_free_head+0x17f/0x1b0 net/core/skbuff.c:957
skb_release_data+0x5ba/0x870 net/core/skbuff.c:987
skb_release_all net/core/skbuff.c:1053 [inline]
__kfree_skb net/core/skbuff.c:1067 [inline]
consume_skb net/core/skbuff.c:1283 [inline]
consume_skb+0xd2/0x170 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:lock_release+0x0/0x680 kernel/locking/lockdep.c:5761
Code: e9 99 fc ff ff 48 89 cf e8 ed 1a 75 00 e9 ce fd ff ff 48 c7 c7 54 50 cc 8e e8 dc 1a 75 00 e9 fe fe ff ff 0f 1f 80 00 00 00 00 0f 1e fa 48 b8 00 00 00 00 00 fc ff df 41 57 41 56 41 55 41 54
RSP: 0018:ffffc90015f2f988 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff81e85443 RDI: ffffffff8cbab2e0
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 00000000000440f2
R13: 0000000000000000 R14: 0000000000000000 R15: ffffea0001103c80
rcu_lock_release include/linux/rcupdate.h:308 [inline]
rcu_read_unlock include/linux/rcupdate.h:782 [inline]
page_ext_put+0x48/0xd0 mm/page_ext.c:533
page_table_check_free include/linux/page_table_check.h:41 [inline]
free_pages_prepare mm/page_alloc.c:1137 [inline]
free_unref_page_prepare+0x466/0xa40 mm/page_alloc.c:2312
free_unref_page+0x33/0x3b0 mm/page_alloc.c:2405
vfree+0x181/0x7a0 mm/vmalloc.c:2842
kcov_put kernel/kcov.c:429 [inline]
kcov_put+0x26/0x40 kernel/kcov.c:425
kcov_close+0x10/0x20 kernel/kcov.c:525
__fput+0x3f7/0xa70 fs/file_table.c:384
task_work_run+0x14d/0x240 kernel/task_work.c:180
exit_task_work include/linux/task_work.h:38 [inline]
do_exit+0xa92/0x2a20 kernel/exit.c:874
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: 0033:0x7fbd3247cae9
Code: Unable to access opcode bytes at 0x7fbd3247cabf.
RSP: 002b:00007fbd3313b0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: 0000000000000004 RBX: 00007fbd3259bf80 RCX: 00007fbd3247cae9
RDX: 00000000000026e1 RSI: 0000000020000300 RDI: ffffffffffffff9c
RBP: 00007fbd324c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fbd3259bf80 R15: 00007ffd5354da38
Allocated by task 6388:
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 5033:
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 ffff88802fdb0000
which belongs to the cache task_struct of size 7360
The buggy address is located 176 bytes inside of
freed 7360-byte region [ffff88802fdb0000, ffff88802fdb1cc0)
The buggy address belongs to the physical page:
page:ffffea0000bf6c00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2fdb0
head:ffffea0000bf6c00 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0
memcg:ffff8880665ec141
flags: 0xfff00000000840(slab|head|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff00000000840 ffff888014e43500 ffffea0000c10200 0000000000000002
raw: 0000000000000000 0000000000040004 00000001ffffffff ffff8880665ec141
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 6278, tgid 6278 (syz-executor.3), ts 345298834919, free_ts 345269932533
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_clone3+0x1f1/0x260 kernel/fork.c:3210
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+0x16c/0x3b0 mm/slub.c:3502
mt_alloc_one lib/maple_tree.c:160 [inline]
mas_alloc_nodes+0x182/0x830 lib/maple_tree.c:1265
mas_node_count_gfp+0x105/0x130 lib/maple_tree.c:1345
mas_preallocate+0x2d7/0xda0 lib/maple_tree.c:5520
vma_iter_prealloc mm/internal.h:1077 [inline]
vma_expand+0x63c/0x12a0 mm/mmap.c:650
mmap_region+0x978/0x28b0 mm/mmap.c:2719
do_mmap+0x893/0xef0 mm/mmap.c:1354
vm_mmap_pgoff+0x1a8/0x3b0 mm/util.c:546
ksys_mmap_pgoff+0x7d/0x5b0 mm/mmap.c:1400
__do_sys_mmap arch/x86/kernel/sys_x86_64.c:93 [inline]
__se_sys_mmap arch/x86/kernel/sys_x86_64.c:86 [inline]
__x64_sys_mmap+0x125/0x190 arch/x86/kernel/sys_x86_64.c:86
Memory state around the buggy address:
ffff88802fdaff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff88802fdb0000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88802fdb0080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff88802fdb0100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88802fdb0180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
----------------
Code disassembly (best guess):
0: 89 d8 mov %ebx,%eax
2: 4c 89 f1 mov %r14,%rcx
5: 03 41 08 add 0x8(%rcx),%eax
8: 83 ee 03 sub $0x3,%esi
b: 48 83 c1 0c add $0xc,%rcx
f: 03 59 f4 add -0xc(%rcx),%ebx
12: 44 03 41 f8 add -0x8(%rcx),%r8d
16: 89 df mov %ebx,%edi
18: 89 c3 mov %eax,%ebx
1a: 29 c7 sub %eax,%edi
1c: c1 c3 04 rol $0x4,%ebx
1f: 44 01 c0 add %r8d,%eax
22: 31 fb xor %edi,%ebx
24: 44 89 c7 mov %r8d,%edi
27: 41 89 d8 mov %ebx,%r8d
* 2a: 29 df sub %ebx,%edi <-- trapping instruction
2c: 01 c3 add %eax,%ebx
2e: 41 c1 c0 06 rol $0x6,%r8d
32: 41 31 f8 xor %edi,%r8d
35: 44 89 c7 mov %r8d,%edi
38: 44 29 c0 sub %r8d,%eax
3b: 41 01 d8 add %ebx,%r8d
3e: c1 .byte 0xc1
3f: c7 .byte 0xc7