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BUG: KASAN: slab-out-of-bounds in instrument_atomic_write include/linux/instrumented.h:82 [inline]
BUG: KASAN: slab-out-of-bounds in clear_bit include/asm-generic/bitops/instrumented-atomic.h:41 [inline]
BUG: KASAN: slab-out-of-bounds in cpumask_clear_cpu include/linux/cpumask.h:528 [inline]
BUG: KASAN: slab-out-of-bounds in xfs_inodegc_worker+0xbf/0x7f0 fs/xfs/xfs_icache.c:1865
Write of size 8 at addr ffff88801c59adf9 by task kworker/3:2/1384

CPU: 3 PID: 1384 Comm: kworker/3:2 Not tainted 6.9.0-syzkaller-09699-geb6a9339efeb #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Workqueue: xfs-inodegc/loop3 xfs_inodegc_worker
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:114
 print_address_description mm/kasan/report.c:377 [inline]
 print_report+0xc3/0x620 mm/kasan/report.c:488
 kasan_report+0xd9/0x110 mm/kasan/report.c:601
 check_region_inline mm/kasan/generic.c:183 [inline]
 kasan_check_range+0xef/0x1a0 mm/kasan/generic.c:189
 instrument_atomic_write include/linux/instrumented.h:82 [inline]
 clear_bit include/asm-generic/bitops/instrumented-atomic.h:41 [inline]
 cpumask_clear_cpu include/linux/cpumask.h:528 [inline]
 xfs_inodegc_worker+0xbf/0x7f0 fs/xfs/xfs_icache.c:1865
 process_one_work+0x958/0x1ad0 kernel/workqueue.c:3231
 process_scheduled_works kernel/workqueue.c:3312 [inline]
 worker_thread+0x6c8/0xf70 kernel/workqueue.c:3393
 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>

Allocated by task 5554:
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
 kasan_save_track+0x14/0x30 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:370 [inline]
 __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:387
 kmalloc_noprof include/linux/slab.h:660 [inline]
 kzalloc_noprof include/linux/slab.h:778 [inline]
 xfs_init_fs_context+0x45/0x550 fs/xfs/xfs_super.c:1988
 alloc_fs_context+0x54a/0x9c0 fs/fs_context.c:318
 do_new_mount fs/namespace.c:3331 [inline]
 path_mount+0xbfb/0x1f10 fs/namespace.c:3679
 do_mount fs/namespace.c:3692 [inline]
 __do_sys_mount fs/namespace.c:3898 [inline]
 __se_sys_mount fs/namespace.c:3875 [inline]
 __ia32_sys_mount+0x295/0x320 fs/namespace.c:3875
 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
 __do_fast_syscall_32+0x75/0x120 arch/x86/entry/common.c:386
 do_fast_syscall_32+0x32/0x80 arch/x86/entry/common.c:411
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e

The buggy address belongs to the object at ffff88801c59a000
 which belongs to the cache kmalloc-4k of size 4096
The buggy address is located 3577 bytes inside of
 allocated 3584-byte region [ffff88801c59a000, ffff88801c59ae00)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1c598
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffefff(slab)
raw: 00fff00000000040 ffff888015443040 ffffea0000744c00 dead000000000002
raw: 0000000000000000 0000000000040004 00000001ffffefff 0000000000000000
head: 00fff00000000040 ffff888015443040 ffffea0000744c00 dead000000000002
head: 0000000000000000 0000000000040004 00000001ffffefff 0000000000000000
head: 00fff00000000003 ffffea0000716601 ffffffffffffffff 0000000000000000
head: 0000000000000008 0000000000000000 00000000ffffffff 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 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, tgid 1 (swapper/0), ts 8102037016, free_ts 0
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x2d1/0x350 mm/page_alloc.c:1468
 prep_new_page mm/page_alloc.c:1476 [inline]
 get_page_from_freelist+0x136a/0x2df0 mm/page_alloc.c:3402
 __alloc_pages_noprof+0x22b/0x2460 mm/page_alloc.c:4660
 __alloc_pages_node_noprof include/linux/gfp.h:244 [inline]
 alloc_pages_node_noprof include/linux/gfp.h:271 [inline]
 alloc_slab_page+0x56/0x110 mm/slub.c:2264
 allocate_slab mm/slub.c:2427 [inline]
 new_slab+0x84/0x260 mm/slub.c:2480
 ___slab_alloc+0xdac/0x1870 mm/slub.c:3666
 __slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3756
 __slab_alloc_node mm/slub.c:3809 [inline]
 slab_alloc_node mm/slub.c:3988 [inline]
 kmalloc_trace_noprof+0x2c5/0x310 mm/slub.c:4147
 kmalloc_noprof include/linux/slab.h:660 [inline]
 kzalloc_noprof include/linux/slab.h:778 [inline]
 kobject_uevent_env+0x265/0x15f0 lib/kobject_uevent.c:525
 driver_register+0x2d3/0x4b0 drivers/base/driver.c:254
 do_one_initcall+0x128/0x630 init/main.c:1267
 do_initcall_level init/main.c:1329 [inline]
 do_initcalls init/main.c:1345 [inline]
 do_basic_setup init/main.c:1364 [inline]
 kernel_init_freeable+0x660/0xc50 init/main.c:1578
 kernel_init+0x1c/0x2b0 init/main.c:1467
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
page_owner free stack trace missing

Memory state around the buggy address:
 ffff88801c59ad00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff88801c59ad80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff88801c59ae00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                   ^
 ffff88801c59ae80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88801c59af00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
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