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BUG: KASAN: double-free in slab_free mm/slub.c:3786 [inline]
BUG: KASAN: double-free in __kmem_cache_free+0xaf/0x2d0 mm/slub.c:3799
Free of addr ffff88809a450000 by task syz-executor.4/5054

CPU: 0 PID: 5054 Comm: syz-executor.4 Not tainted 6.4.0-rc2-next-20230515-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd9/0x150 lib/dump_stack.c:106
 print_address_description.constprop.0+0x2c/0x3c0 mm/kasan/report.c:351
 print_report mm/kasan/report.c:462 [inline]
 kasan_report_invalid_free+0xe8/0x100 mm/kasan/report.c:537
 ____kasan_slab_free+0x185/0x1c0 mm/kasan/common.c:225
 kasan_slab_free include/linux/kasan.h:162 [inline]
 slab_free_hook mm/slub.c:1781 [inline]
 slab_free_freelist_hook+0x8b/0x1c0 mm/slub.c:1807
 slab_free mm/slub.c:3786 [inline]
 __kmem_cache_free+0xaf/0x2d0 mm/slub.c:3799
 diUnmount+0xf1/0x130 fs/jfs/jfs_imap.c:195
 jfs_umount+0x189/0x430 fs/jfs/jfs_umount.c:63
 jfs_put_super+0x85/0x1d0 fs/jfs/super.c:194
 generic_shutdown_super+0x158/0x480 fs/super.c:500
 kill_block_super+0xa1/0x100 fs/super.c:1407
 deactivate_locked_super+0x98/0x160 fs/super.c:331
 deactivate_super+0xb1/0xd0 fs/super.c:362
 cleanup_mnt+0x2ae/0x3d0 fs/namespace.c:1177
 task_work_run+0x16f/0x270 kernel/task_work.c:179
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:171 [inline]
 exit_to_user_mode_prepare+0x210/0x240 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
 syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:297
 do_syscall_64+0x46/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f9ee588d5d7
Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffca7ae8c68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f9ee588d5d7
RDX: 00007ffca7ae8d3b RSI: 000000000000000a RDI: 00007ffca7ae8d30
RBP: 00007ffca7ae8d30 R08: 00000000ffffffff R09: 00007ffca7ae8b00
R10: 0000555556e57893 R11: 0000000000000246 R12: 00007f9ee58e6cdc
R13: 00007ffca7ae9df0 R14: 0000555556e57810 R15: 00007ffca7ae9e30
 </TASK>

Allocated by task 6120:
 kasan_save_stack+0x22/0x40 mm/kasan/common.c:45
 kasan_set_track+0x25/0x30 mm/kasan/common.c:52
 ____kasan_kmalloc mm/kasan/common.c:374 [inline]
 ____kasan_kmalloc mm/kasan/common.c:333 [inline]
 __kasan_kmalloc+0xa2/0xb0 mm/kasan/common.c:383
 kasan_kmalloc include/linux/kasan.h:196 [inline]
 __do_kmalloc_node mm/slab_common.c:966 [inline]
 __kmalloc_node_track_caller+0x5f/0x1a0 mm/slab_common.c:986
 kmalloc_reserve+0xf0/0x270 net/core/skbuff.c:574
 __alloc_skb+0x129/0x330 net/core/skbuff.c:643
 alloc_skb include/linux/skbuff.h:1288 [inline]
 nsim_dev_trap_skb_build drivers/net/netdevsim/dev.c:751 [inline]
 nsim_dev_trap_report drivers/net/netdevsim/dev.c:808 [inline]
 nsim_dev_trap_report_work+0x2b1/0xc80 drivers/net/netdevsim/dev.c:853
 process_one_work+0x99a/0x15e0 kernel/workqueue.c:2407
 worker_thread+0x67d/0x10c0 kernel/workqueue.c:2554
 kthread+0x344/0x440 kernel/kthread.c:379
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308

Freed by task 6120:
 kasan_save_stack+0x22/0x40 mm/kasan/common.c:45
 kasan_set_track+0x25/0x30 mm/kasan/common.c:52
 kasan_save_free_info+0x2e/0x40 mm/kasan/generic.c:521
 ____kasan_slab_free mm/kasan/common.c:236 [inline]
 ____kasan_slab_free+0x160/0x1c0 mm/kasan/common.c:200
 kasan_slab_free include/linux/kasan.h:162 [inline]
 slab_free_hook mm/slub.c:1781 [inline]
 slab_free_freelist_hook+0x8b/0x1c0 mm/slub.c:1807
 slab_free mm/slub.c:3786 [inline]
 __kmem_cache_free+0xaf/0x2d0 mm/slub.c:3799
 skb_kfree_head net/core/skbuff.c:893 [inline]
 skb_free_head+0x110/0x1b0 net/core/skbuff.c:905
 skb_release_data+0x598/0x820 net/core/skbuff.c:935
 skb_release_all net/core/skbuff.c:1001 [inline]
 __kfree_skb net/core/skbuff.c:1015 [inline]
 consume_skb net/core/skbuff.c:1231 [inline]
 consume_skb+0xd2/0x170 net/core/skbuff.c:1225
 nsim_dev_trap_report drivers/net/netdevsim/dev.c:824 [inline]
 nsim_dev_trap_report_work+0x87c/0xc80 drivers/net/netdevsim/dev.c:853
 process_one_work+0x99a/0x15e0 kernel/workqueue.c:2407
 worker_thread+0x67d/0x10c0 kernel/workqueue.c:2554
 kthread+0x344/0x440 kernel/kthread.c:379
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308

The buggy address belongs to the object at ffff88809a450000
 which belongs to the cache kmalloc-4k of size 4096
The buggy address is located 0 bytes inside of
 4096-byte region [ffff88809a450000, ffff88809a451000)

The buggy address belongs to the physical page:
page:ffffea0002691400 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x9a450
head:ffffea0002691400 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff00000010200 ffff888012442140 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000040004 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0x1d2820(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 6120, tgid 6120 (kworker/1:16), ts 826800928899, free_ts 826483103185
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x2db/0x350 mm/page_alloc.c:1731
 prep_new_page mm/page_alloc.c:1738 [inline]
 get_page_from_freelist+0xf67/0x2a80 mm/page_alloc.c:3539
 __alloc_pages+0x1cb/0x4a0 mm/page_alloc.c:4805
 alloc_pages+0x1aa/0x270 mm/mempolicy.c:2279
 alloc_slab_page mm/slub.c:1851 [inline]
 allocate_slab+0x28e/0x380 mm/slub.c:1998
 new_slab mm/slub.c:2051 [inline]
 ___slab_alloc+0xa91/0x1400 mm/slub.c:3192
 __slab_alloc.constprop.0+0x56/0xa0 mm/slub.c:3291
 __slab_alloc_node mm/slub.c:3344 [inline]
 slab_alloc_node mm/slub.c:3441 [inline]
 __kmem_cache_alloc_node+0x136/0x320 mm/slub.c:3490
 __do_kmalloc_node mm/slab_common.c:965 [inline]
 __kmalloc_node_track_caller+0x4f/0x1a0 mm/slab_common.c:986
 kmalloc_reserve+0xf0/0x270 net/core/skbuff.c:574
 __alloc_skb+0x129/0x330 net/core/skbuff.c:643
 alloc_skb include/linux/skbuff.h:1288 [inline]
 nsim_dev_trap_skb_build drivers/net/netdevsim/dev.c:751 [inline]
 nsim_dev_trap_report drivers/net/netdevsim/dev.c:808 [inline]
 nsim_dev_trap_report_work+0x2b1/0xc80 drivers/net/netdevsim/dev.c:853
 process_one_work+0x99a/0x15e0 kernel/workqueue.c:2407
 worker_thread+0x67d/0x10c0 kernel/workqueue.c:2554
 kthread+0x344/0x440 kernel/kthread.c:379
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1302 [inline]
 free_unref_page_prepare+0x4dd/0xb90 mm/page_alloc.c:2600
 free_unref_page+0x33/0x370 mm/page_alloc.c:2695
 diUnmount+0xf1/0x130 fs/jfs/jfs_imap.c:195
 jfs_mount_rw+0x215/0x6d0 fs/jfs/jfs_mount.c:239
 jfs_remount+0x520/0x660 fs/jfs/super.c:454
 legacy_reconfigure+0x119/0x180 fs/fs_context.c:633
 reconfigure_super+0x40c/0xa30 fs/super.c:956
 vfs_fsconfig_locked fs/fsopen.c:254 [inline]
 __do_sys_fsconfig+0xa5e/0xc50 fs/fsopen.c:439
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Memory state around the buggy address:
 ffff88809a44ff00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff88809a44ff80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff88809a450000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                   ^
 ffff88809a450080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88809a450100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
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