==================================================================
BUG: KASAN: slab-use-after-free in memcmp+0x1b5/0x1c0 lib/string.c:681
Read of size 8 at addr ffff888023b99d00 by task syz-executor.0/18698

CPU: 1 PID: 18698 Comm: syz-executor.0 Not tainted 6.5.0-syzkaller-03967-gbd6c11bc43c4 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Call Trace:
 <TASK>
 __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
 memcmp+0x1b5/0x1c0 lib/string.c:681
 memcmp include/linux/fortify-string.h:728 [inline]
 compare_mount_options fs/ceph/super.c:622 [inline]
 ceph_compare_super+0x11a/0x8d0 fs/ceph/super.c:1147
 sget_fc+0x582/0x9b0 fs/super.c:778
 ceph_get_tree+0x6ea/0x1910 fs/ceph/super.c:1232
 vfs_get_tree+0x8c/0x370 fs/super.c:1711
 vfs_cmd_create+0x11f/0x2f0 fs/fsopen.c:230
 vfs_fsconfig_locked fs/fsopen.c:294 [inline]
 __do_sys_fsconfig+0x832/0xb90 fs/fsopen.c:475
 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
RIP: 0033:0x7f8400a7cae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f83ff5fe0c8 EFLAGS: 00000246 ORIG_RAX: 00000000000001af
RAX: ffffffffffffffda RBX: 00007f8400b9c050 RCX: 00007f8400a7cae9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000004
RBP: 00007f8400ac847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f8400b9c050 R15: 00007ffd65fa46d8
 </TASK>

Allocated by task 18673:
 kasan_save_stack+0x33/0x50 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+0xa2/0xb0 mm/kasan/common.c:383
 kmalloc include/linux/slab.h:582 [inline]
 kzalloc include/linux/slab.h:703 [inline]
 ceph_init_fs_context+0xc8/0x530 fs/ceph/super.c:1333
 alloc_fs_context+0x56c/0x9f0 fs/fs_context.c:294
 __do_sys_fsopen fs/fsopen.c:137 [inline]
 __se_sys_fsopen fs/fsopen.c:115 [inline]
 __x64_sys_fsopen+0xeb/0x230 fs/fsopen.c:115
 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 18673:
 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+0x15e/0x1b0 mm/kasan/common.c:200
 kasan_slab_free include/linux/kasan.h:162 [inline]
 slab_free_hook mm/slub.c:1792 [inline]
 slab_free_freelist_hook+0x10b/0x1e0 mm/slub.c:1818
 slab_free mm/slub.c:3801 [inline]
 __kmem_cache_free+0xb8/0x2f0 mm/slub.c:3814
 destroy_mount_options fs/ceph/super.c:599 [inline]
 destroy_mount_options+0xe9/0x140 fs/ceph/super.c:588
 destroy_fs_client+0x1b6/0x2b0 fs/ceph/super.c:860
 deactivate_locked_super+0xa0/0x2d0 fs/super.c:454
 ceph_get_tree+0x1270/0x1910 fs/ceph/super.c:1267
 vfs_get_tree+0x8c/0x370 fs/super.c:1711
 vfs_cmd_create+0x11f/0x2f0 fs/fsopen.c:230
 vfs_fsconfig_locked fs/fsopen.c:294 [inline]
 __do_sys_fsconfig+0x832/0xb90 fs/fsopen.c:475
 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

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
 kvfree_call_rcu+0x70/0xbe0 kernel/rcu/tree.c:3372
 cfg80211_update_known_bss+0x821/0xa80 net/wireless/scan.c:1744
 __cfg80211_bss_update+0x1ba/0x2540 net/wireless/scan.c:1788
 cfg80211_inform_single_bss_frame_data+0x7e7/0xf30 net/wireless/scan.c:2881
 cfg80211_inform_bss_frame_data+0xbf/0x290 net/wireless/scan.c:2912
 ieee80211_bss_info_update+0x37b/0x9a0 net/mac80211/scan.c:211
 ieee80211_rx_bss_info net/mac80211/ibss.c:1124 [inline]
 ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1613 [inline]
 ieee80211_ibss_rx_queued_mgmt+0x195f/0x2ee0 net/mac80211/ibss.c:1642
 ieee80211_iface_process_skb net/mac80211/iface.c:1604 [inline]
 ieee80211_iface_work+0xa1f/0xd40 net/mac80211/iface.c:1658
 cfg80211_wiphy_work+0x24e/0x330 net/wireless/core.c:435
 process_one_work+0xaa2/0x16f0 kernel/workqueue.c:2600
 worker_thread+0x687/0x1110 kernel/workqueue.c:2751
 kthread+0x33a/0x430 kernel/kthread.c:389
 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304

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
 kvfree_call_rcu+0x70/0xbe0 kernel/rcu/tree.c:3372
 cfg80211_update_known_bss+0x821/0xa80 net/wireless/scan.c:1744
 __cfg80211_bss_update+0x1ba/0x2540 net/wireless/scan.c:1788
 cfg80211_inform_single_bss_frame_data+0x7e7/0xf30 net/wireless/scan.c:2881
 cfg80211_inform_bss_frame_data+0xbf/0x290 net/wireless/scan.c:2912
 ieee80211_bss_info_update+0x37b/0x9a0 net/mac80211/scan.c:211
 ieee80211_rx_bss_info net/mac80211/ibss.c:1124 [inline]
 ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1613 [inline]
 ieee80211_ibss_rx_queued_mgmt+0x195f/0x2ee0 net/mac80211/ibss.c:1642
 ieee80211_iface_process_skb net/mac80211/iface.c:1604 [inline]
 ieee80211_iface_work+0xa1f/0xd40 net/mac80211/iface.c:1658
 cfg80211_wiphy_work+0x24e/0x330 net/wireless/core.c:435
 process_one_work+0xaa2/0x16f0 kernel/workqueue.c:2600
 worker_thread+0x687/0x1110 kernel/workqueue.c:2751
 kthread+0x33a/0x430 kernel/kthread.c:389
 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304

The buggy address belongs to the object at ffff888023b99d00
 which belongs to the cache kmalloc-96 of size 96
The buggy address is located 0 bytes inside of
 freed 96-byte region [ffff888023b99d00, ffff888023b99d60)

The buggy address belongs to the physical page:
page:ffffea00008ee640 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x23b99
flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff00000000200 ffff888012841780 ffffea00008abbc0 dead000000000006
raw: 0000000000000000 0000000000200020 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12820(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY), pid 5114, tgid 5114 (kworker/0:4), ts 152982244616, free_ts 152941425621
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x2d2/0x350 mm/page_alloc.c:1570
 prep_new_page mm/page_alloc.c:1577 [inline]
 get_page_from_freelist+0x10a9/0x31e0 mm/page_alloc.c:3221
 __alloc_pages+0x1d0/0x4a0 mm/page_alloc.c:4477
 alloc_pages+0x1a9/0x270 mm/mempolicy.c:2298
 alloc_slab_page mm/slub.c:1862 [inline]
 allocate_slab+0x24e/0x380 mm/slub.c:2009
 new_slab mm/slub.c:2062 [inline]
 ___slab_alloc+0x8bc/0x1570 mm/slub.c:3215
 __slab_alloc.constprop.0+0x56/0xa0 mm/slub.c:3314
 __slab_alloc_node mm/slub.c:3367 [inline]
 slab_alloc_node mm/slub.c:3460 [inline]
 __kmem_cache_alloc_node+0x137/0x350 mm/slub.c:3509
 kmalloc_trace+0x25/0xe0 mm/slab_common.c:1076
 kmalloc include/linux/slab.h:582 [inline]
 dst_cow_metrics_generic+0x4c/0x1f0 net/core/dst.c:180
 dst_metrics_write_ptr include/net/dst.h:133 [inline]
 dst_metric_set include/net/dst.h:194 [inline]
 icmp6_dst_alloc+0x4a2/0x620 net/ipv6/route.c:3273
 mld_sendpack+0x5f9/0xd60 net/ipv6/mcast.c:1807
 mld_send_cr net/ipv6/mcast.c:2119 [inline]
 mld_ifc_work+0x756/0xcd0 net/ipv6/mcast.c:2651
 process_one_work+0xaa2/0x16f0 kernel/workqueue.c:2600
 worker_thread+0x687/0x1110 kernel/workqueue.c:2751
 kthread+0x33a/0x430 kernel/kthread.c:389
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1161 [inline]
 free_unref_page_prepare+0x508/0xb90 mm/page_alloc.c:2348
 free_unref_page+0x33/0x3b0 mm/page_alloc.c:2443
 qlink_free mm/kasan/quarantine.c:166 [inline]
 qlist_free_all+0x6a/0x170 mm/kasan/quarantine.c:185
 kasan_quarantine_reduce+0x18b/0x1d0 mm/kasan/quarantine.c:292
 __kasan_slab_alloc+0x65/0x90 mm/kasan/common.c:305
 kasan_slab_alloc include/linux/kasan.h:186 [inline]
 slab_post_alloc_hook+0x5a/0xd0 mm/slab.h:762
 kmem_cache_alloc_bulk+0x40c/0x7c0 mm/slub.c:4048
 mt_alloc_bulk lib/maple_tree.c:164 [inline]
 mas_alloc_nodes+0x39c/0x830 lib/maple_tree.c:1304
 mas_node_count_gfp lib/maple_tree.c:1362 [inline]
 mas_preallocate+0x2b1/0x370 lib/maple_tree.c:5554
 vma_iter_prealloc mm/internal.h:1049 [inline]
 mmap_region+0x7e1/0x2650 mm/mmap.c:2810
 do_mmap+0x884/0xee0 mm/mmap.c:1363
 vm_mmap_pgoff+0x1a6/0x3b0 mm/util.c:543
 vm_mmap+0x8e/0xc0 mm/util.c:562
 elf_map+0x234/0x320 fs/binfmt_elf.c:399
 load_elf_interp fs/binfmt_elf.c:637 [inline]
 load_elf_binary+0x36fa/0x4f10 fs/binfmt_elf.c:1249
 search_binary_handler fs/exec.c:1738 [inline]
 exec_binprm fs/exec.c:1780 [inline]
 bprm_execve fs/exec.c:1855 [inline]
 bprm_execve+0x80a/0x1a50 fs/exec.c:1811

Memory state around the buggy address:
 ffff888023b99c00: 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc fc
 ffff888023b99c80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc
>ffff888023b99d00: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
                   ^
 ffff888023b99d80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc
 ffff888023b99e00: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
==================================================================
==================================================================
BUG: KASAN: slab-use-after-free in memcmp+0x192/0x1c0 lib/string.c:692
Read of size 1 at addr ffff888023b99d00 by task syz-executor.0/18698

CPU: 1 PID: 18698 Comm: syz-executor.0 Tainted: G    B              6.5.0-syzkaller-03967-gbd6c11bc43c4 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Call Trace:
 <TASK>
 __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
 memcmp+0x192/0x1c0 lib/string.c:692
 memcmp include/linux/fortify-string.h:728 [inline]
 compare_mount_options fs/ceph/super.c:622 [inline]
 ceph_compare_super+0x11a/0x8d0 fs/ceph/super.c:1147
 sget_fc+0x582/0x9b0 fs/super.c:778
 ceph_get_tree+0x6ea/0x1910 fs/ceph/super.c:1232
 vfs_get_tree+0x8c/0x370 fs/super.c:1711
 vfs_cmd_create+0x11f/0x2f0 fs/fsopen.c:230
 vfs_fsconfig_locked fs/fsopen.c:294 [inline]
 __do_sys_fsconfig+0x832/0xb90 fs/fsopen.c:475
 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
RIP: 0033:0x7f8400a7cae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f83ff5fe0c8 EFLAGS: 00000246 ORIG_RAX: 00000000000001af
RAX: ffffffffffffffda RBX: 00007f8400b9c050 RCX: 00007f8400a7cae9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000004
RBP: 00007f8400ac847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f8400b9c050 R15: 00007ffd65fa46d8
 </TASK>

Allocated by task 18673:
 kasan_save_stack+0x33/0x50 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+0xa2/0xb0 mm/kasan/common.c:383
 kmalloc include/linux/slab.h:582 [inline]
 kzalloc include/linux/slab.h:703 [inline]
 ceph_init_fs_context+0xc8/0x530 fs/ceph/super.c:1333
 alloc_fs_context+0x56c/0x9f0 fs/fs_context.c:294
 __do_sys_fsopen fs/fsopen.c:137 [inline]
 __se_sys_fsopen fs/fsopen.c:115 [inline]
 __x64_sys_fsopen+0xeb/0x230 fs/fsopen.c:115
 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 18673:
 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+0x15e/0x1b0 mm/kasan/common.c:200
 kasan_slab_free include/linux/kasan.h:162 [inline]
 slab_free_hook mm/slub.c:1792 [inline]
 slab_free_freelist_hook+0x10b/0x1e0 mm/slub.c:1818
 slab_free mm/slub.c:3801 [inline]
 __kmem_cache_free+0xb8/0x2f0 mm/slub.c:3814
 destroy_mount_options fs/ceph/super.c:599 [inline]
 destroy_mount_options+0xe9/0x140 fs/ceph/super.c:588
 destroy_fs_client+0x1b6/0x2b0 fs/ceph/super.c:860
 deactivate_locked_super+0xa0/0x2d0 fs/super.c:454
 ceph_get_tree+0x1270/0x1910 fs/ceph/super.c:1267
 vfs_get_tree+0x8c/0x370 fs/super.c:1711
 vfs_cmd_create+0x11f/0x2f0 fs/fsopen.c:230
 vfs_fsconfig_locked fs/fsopen.c:294 [inline]
 __do_sys_fsconfig+0x832/0xb90 fs/fsopen.c:475
 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

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
 kvfree_call_rcu+0x70/0xbe0 kernel/rcu/tree.c:3372
 cfg80211_update_known_bss+0x821/0xa80 net/wireless/scan.c:1744
 __cfg80211_bss_update+0x1ba/0x2540 net/wireless/scan.c:1788
 cfg80211_inform_single_bss_frame_data+0x7e7/0xf30 net/wireless/scan.c:2881
 cfg80211_inform_bss_frame_data+0xbf/0x290 net/wireless/scan.c:2912
 ieee80211_bss_info_update+0x37b/0x9a0 net/mac80211/scan.c:211
 ieee80211_rx_bss_info net/mac80211/ibss.c:1124 [inline]
 ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1613 [inline]
 ieee80211_ibss_rx_queued_mgmt+0x195f/0x2ee0 net/mac80211/ibss.c:1642
 ieee80211_iface_process_skb net/mac80211/iface.c:1604 [inline]
 ieee80211_iface_work+0xa1f/0xd40 net/mac80211/iface.c:1658
 cfg80211_wiphy_work+0x24e/0x330 net/wireless/core.c:435
 process_one_work+0xaa2/0x16f0 kernel/workqueue.c:2600
 worker_thread+0x687/0x1110 kernel/workqueue.c:2751
 kthread+0x33a/0x430 kernel/kthread.c:389
 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304

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
 kvfree_call_rcu+0x70/0xbe0 kernel/rcu/tree.c:3372
 cfg80211_update_known_bss+0x821/0xa80 net/wireless/scan.c:1744
 __cfg80211_bss_update+0x1ba/0x2540 net/wireless/scan.c:1788
 cfg80211_inform_single_bss_frame_data+0x7e7/0xf30 net/wireless/scan.c:2881
 cfg80211_inform_bss_frame_data+0xbf/0x290 net/wireless/scan.c:2912
 ieee80211_bss_info_update+0x37b/0x9a0 net/mac80211/scan.c:211
 ieee80211_rx_bss_info net/mac80211/ibss.c:1124 [inline]
 ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1613 [inline]
 ieee80211_ibss_rx_queued_mgmt+0x195f/0x2ee0 net/mac80211/ibss.c:1642
 ieee80211_iface_process_skb net/mac80211/iface.c:1604 [inline]
 ieee80211_iface_work+0xa1f/0xd40 net/mac80211/iface.c:1658
 cfg80211_wiphy_work+0x24e/0x330 net/wireless/core.c:435
 process_one_work+0xaa2/0x16f0 kernel/workqueue.c:2600
 worker_thread+0x687/0x1110 kernel/workqueue.c:2751
 kthread+0x33a/0x430 kernel/kthread.c:389
 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304

The buggy address belongs to the object at ffff888023b99d00
 which belongs to the cache kmalloc-96 of size 96
The buggy address is located 0 bytes inside of
 freed 96-byte region [ffff888023b99d00, ffff888023b99d60)

The buggy address belongs to the physical page:
page:ffffea00008ee640 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x23b99
flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff00000000200 ffff888012841780 ffffea00008abbc0 dead000000000006
raw: 0000000000000000 0000000000200020 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12820(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY), pid 5114, tgid 5114 (kworker/0:4), ts 152982244616, free_ts 152941425621
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x2d2/0x350 mm/page_alloc.c:1570
 prep_new_page mm/page_alloc.c:1577 [inline]
 get_page_from_freelist+0x10a9/0x31e0 mm/page_alloc.c:3221
 __alloc_pages+0x1d0/0x4a0 mm/page_alloc.c:4477
 alloc_pages+0x1a9/0x270 mm/mempolicy.c:2298
 alloc_slab_page mm/slub.c:1862 [inline]
 allocate_slab+0x24e/0x380 mm/slub.c:2009
 new_slab mm/slub.c:2062 [inline]
 ___slab_alloc+0x8bc/0x1570 mm/slub.c:3215
 __slab_alloc.constprop.0+0x56/0xa0 mm/slub.c:3314
 __slab_alloc_node mm/slub.c:3367 [inline]
 slab_alloc_node mm/slub.c:3460 [inline]
 __kmem_cache_alloc_node+0x137/0x350 mm/slub.c:3509
 kmalloc_trace+0x25/0xe0 mm/slab_common.c:1076
 kmalloc include/linux/slab.h:582 [inline]
 dst_cow_metrics_generic+0x4c/0x1f0 net/core/dst.c:180
 dst_metrics_write_ptr include/net/dst.h:133 [inline]
 dst_metric_set include/net/dst.h:194 [inline]
 icmp6_dst_alloc+0x4a2/0x620 net/ipv6/route.c:3273
 mld_sendpack+0x5f9/0xd60 net/ipv6/mcast.c:1807
 mld_send_cr net/ipv6/mcast.c:2119 [inline]
 mld_ifc_work+0x756/0xcd0 net/ipv6/mcast.c:2651
 process_one_work+0xaa2/0x16f0 kernel/workqueue.c:2600
 worker_thread+0x687/0x1110 kernel/workqueue.c:2751
 kthread+0x33a/0x430 kernel/kthread.c:389
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1161 [inline]
 free_unref_page_prepare+0x508/0xb90 mm/page_alloc.c:2348
 free_unref_page+0x33/0x3b0 mm/page_alloc.c:2443
 qlink_free mm/kasan/quarantine.c:166 [inline]
 qlist_free_all+0x6a/0x170 mm/kasan/quarantine.c:185
 kasan_quarantine_reduce+0x18b/0x1d0 mm/kasan/quarantine.c:292
 __kasan_slab_alloc+0x65/0x90 mm/kasan/common.c:305
 kasan_slab_alloc include/linux/kasan.h:186 [inline]
 slab_post_alloc_hook+0x5a/0xd0 mm/slab.h:762
 kmem_cache_alloc_bulk+0x40c/0x7c0 mm/slub.c:4048
 mt_alloc_bulk lib/maple_tree.c:164 [inline]
 mas_alloc_nodes+0x39c/0x830 lib/maple_tree.c:1304
 mas_node_count_gfp lib/maple_tree.c:1362 [inline]
 mas_preallocate+0x2b1/0x370 lib/maple_tree.c:5554
 vma_iter_prealloc mm/internal.h:1049 [inline]
 mmap_region+0x7e1/0x2650 mm/mmap.c:2810
 do_mmap+0x884/0xee0 mm/mmap.c:1363
 vm_mmap_pgoff+0x1a6/0x3b0 mm/util.c:543
 vm_mmap+0x8e/0xc0 mm/util.c:562
 elf_map+0x234/0x320 fs/binfmt_elf.c:399
 load_elf_interp fs/binfmt_elf.c:637 [inline]
 load_elf_binary+0x36fa/0x4f10 fs/binfmt_elf.c:1249
 search_binary_handler fs/exec.c:1738 [inline]
 exec_binprm fs/exec.c:1780 [inline]
 bprm_execve fs/exec.c:1855 [inline]
 bprm_execve+0x80a/0x1a50 fs/exec.c:1811

Memory state around the buggy address:
 ffff888023b99c00: 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc fc
 ffff888023b99c80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc
>ffff888023b99d00: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
                   ^
 ffff888023b99d80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc
 ffff888023b99e00: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
==================================================================
==================================================================
BUG: KASAN: slab-use-after-free in memcmp+0x1b5/0x1c0 lib/string.c:681
Read of size 8 at addr ffff888079c5da80 by task syz-executor.0/18698

CPU: 0 PID: 18698 Comm: syz-executor.0 Tainted: G    B              6.5.0-syzkaller-03967-gbd6c11bc43c4 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Call Trace:
 <TASK>
 __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
 memcmp+0x1b5/0x1c0 lib/string.c:681
 memcmp include/linux/fortify-string.h:728 [inline]
 compare_mount_options fs/ceph/super.c:622 [inline]
 ceph_compare_super+0x11a/0x8d0 fs/ceph/super.c:1147
 sget_fc+0x582/0x9b0 fs/super.c:778
 ceph_get_tree+0x6ea/0x1910 fs/ceph/super.c:1232
 vfs_get_tree+0x8c/0x370 fs/super.c:1711
 vfs_cmd_create+0x11f/0x2f0 fs/fsopen.c:230
 vfs_fsconfig_locked fs/fsopen.c:294 [inline]
 __do_sys_fsconfig+0x832/0xb90 fs/fsopen.c:475
 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
RIP: 0033:0x7f8400a7cae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f83ff5fe0c8 EFLAGS: 00000246 ORIG_RAX: 00000000000001af
RAX: ffffffffffffffda RBX: 00007f8400b9c050 RCX: 00007f8400a7cae9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000004
RBP: 00007f8400ac847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f8400b9c050 R15: 00007ffd65fa46d8
 </TASK>

Allocated by task 18659:
 kasan_save_stack+0x33/0x50 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+0xa2/0xb0 mm/kasan/common.c:383
 kmalloc include/linux/slab.h:582 [inline]
 kzalloc include/linux/slab.h:703 [inline]
 ceph_init_fs_context+0xc8/0x530 fs/ceph/super.c:1333
 alloc_fs_context+0x56c/0x9f0 fs/fs_context.c:294
 __do_sys_fsopen fs/fsopen.c:137 [inline]
 __se_sys_fsopen fs/fsopen.c:115 [inline]
 __x64_sys_fsopen+0xeb/0x230 fs/fsopen.c:115
 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 18659:
 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+0x15e/0x1b0 mm/kasan/common.c:200
 kasan_slab_free include/linux/kasan.h:162 [inline]
 slab_free_hook mm/slub.c:1792 [inline]
 slab_free_freelist_hook+0x10b/0x1e0 mm/slub.c:1818
 slab_free mm/slub.c:3801 [inline]
 __kmem_cache_free+0xb8/0x2f0 mm/slub.c:3814
 destroy_mount_options fs/ceph/super.c:599 [inline]
 destroy_mount_options+0xe9/0x140 fs/ceph/super.c:588
 destroy_fs_client+0x1b6/0x2b0 fs/ceph/super.c:860
 deactivate_locked_super+0xa0/0x2d0 fs/super.c:454
 ceph_get_tree+0x1270/0x1910 fs/ceph/super.c:1267
 vfs_get_tree+0x8c/0x370 fs/super.c:1711
 vfs_cmd_create+0x11f/0x2f0 fs/fsopen.c:230
 vfs_fsconfig_locked fs/fsopen.c:294 [inline]
 __do_sys_fsconfig+0x832/0xb90 fs/fsopen.c:475
 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

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
 kvfree_call_rcu+0x70/0xbe0 kernel/rcu/tree.c:3372
 cfg80211_update_known_bss+0x821/0xa80 net/wireless/scan.c:1744
 __cfg80211_bss_update+0x1ba/0x2540 net/wireless/scan.c:1788
 cfg80211_inform_single_bss_frame_data+0x7e7/0xf30 net/wireless/scan.c:2881
 cfg80211_inform_bss_frame_data+0xbf/0x290 net/wireless/scan.c:2912
 ieee80211_bss_info_update+0x37b/0x9a0 net/mac80211/scan.c:211
 ieee80211_rx_bss_info net/mac80211/ibss.c:1124 [inline]
 ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1613 [inline]
 ieee80211_ibss_rx_queued_mgmt+0x195f/0x2ee0 net/mac80211/ibss.c:1642
 ieee80211_iface_process_skb net/mac80211/iface.c:1604 [inline]
 ieee80211_iface_work+0xa1f/0xd40 net/mac80211/iface.c:1658
 cfg80211_wiphy_work+0x24e/0x330 net/wireless/core.c:435
 process_one_work+0xaa2/0x16f0 kernel/workqueue.c:2600
 worker_thread+0x687/0x1110 kernel/workqueue.c:2751
 kthread+0x33a/0x430 kernel/kthread.c:389
 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304

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
 kvfree_call_rcu+0x70/0xbe0 kernel/rcu/tree.c:3372
 cfg80211_update_known_bss+0x821/0xa80 net/wireless/scan.c:1744
 __cfg80211_bss_update+0x1ba/0x2540 net/wireless/scan.c:1788
 cfg80211_inform_single_bss_frame_data+0x7e7/0xf30 net/wireless/scan.c:2881
 cfg80211_inform_bss_frame_data+0xbf/0x290 net/wireless/scan.c:2912
 ieee80211_bss_info_update+0x37b/0x9a0 net/mac80211/scan.c:211
 ieee80211_rx_bss_info net/mac80211/ibss.c:1124 [inline]
 ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1613 [inline]
 ieee80211_ibss_rx_queued_mgmt+0x195f/0x2ee0 net/mac80211/ibss.c:1642
 ieee80211_iface_process_skb net/mac80211/iface.c:1604 [inline]
 ieee80211_iface_work+0xa1f/0xd40 net/mac80211/iface.c:1658
 cfg80211_wiphy_work+0x24e/0x330 net/wireless/core.c:435
 process_one_work+0xaa2/0x16f0 kernel/workqueue.c:2600
 worker_thread+0x687/0x1110 kernel/workqueue.c:2751
 kthread+0x33a/0x430 kernel/kthread.c:389
 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304

The buggy address belongs to the object at ffff888079c5da80
 which belongs to the cache kmalloc-96 of size 96
The buggy address is located 0 bytes inside of
 freed 96-byte region [ffff888079c5da80, ffff888079c5dae0)

The buggy address belongs to the physical page:
page:ffffea0001e71740 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x79c5d
flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff00000000200 ffff888012841780 ffffea0001a3aa80 dead000000000002
raw: 0000000000000000 0000000000200020 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x112820(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_HARDWALL), pid 5118, tgid 5118 (kworker/0:6), ts 155647546797, free_ts 155620324374
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x2d2/0x350 mm/page_alloc.c:1570
 prep_new_page mm/page_alloc.c:1577 [inline]
 get_page_from_freelist+0x10a9/0x31e0 mm/page_alloc.c:3221
 __alloc_pages+0x1d0/0x4a0 mm/page_alloc.c:4477
 alloc_pages+0x1a9/0x270 mm/mempolicy.c:2298
 alloc_slab_page mm/slub.c:1862 [inline]
 allocate_slab+0x24e/0x380 mm/slub.c:2009
 new_slab mm/slub.c:2062 [inline]
 ___slab_alloc+0x8bc/0x1570 mm/slub.c:3215
 __slab_alloc.constprop.0+0x56/0xa0 mm/slub.c:3314
 __slab_alloc_node mm/slub.c:3367 [inline]
 slab_alloc_node mm/slub.c:3460 [inline]
 __kmem_cache_alloc_node+0x137/0x350 mm/slub.c:3509
 kmalloc_trace+0x25/0xe0 mm/slab_common.c:1076
 kmalloc include/linux/slab.h:582 [inline]
 dst_cow_metrics_generic+0x4c/0x1f0 net/core/dst.c:180
 dst_metrics_write_ptr include/net/dst.h:133 [inline]
 dst_metric_set include/net/dst.h:194 [inline]
 icmp6_dst_alloc+0x4a2/0x620 net/ipv6/route.c:3273
 ndisc_send_skb+0x100c/0x1430 net/ipv6/ndisc.c:489
 ndisc_send_rs+0x133/0x690 net/ipv6/ndisc.c:719
 addrconf_rs_timer+0x412/0x840 net/ipv6/addrconf.c:3973
 call_timer_fn+0x1a0/0x580 kernel/time/timer.c:1700
 expire_timers kernel/time/timer.c:1751 [inline]
 __run_timers+0x764/0xb10 kernel/time/timer.c:2022
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1161 [inline]
 free_unref_page_prepare+0x508/0xb90 mm/page_alloc.c:2348
 free_unref_page+0x33/0x3b0 mm/page_alloc.c:2443
 qlink_free mm/kasan/quarantine.c:166 [inline]
 qlist_free_all+0x6a/0x170 mm/kasan/quarantine.c:185
 kasan_quarantine_reduce+0x18b/0x1d0 mm/kasan/quarantine.c:292
 __kasan_slab_alloc+0x65/0x90 mm/kasan/common.c:305
 kasan_slab_alloc include/linux/kasan.h:186 [inline]
 slab_post_alloc_hook mm/slab.h:762 [inline]
 slab_alloc_node mm/slub.c:3470 [inline]
 kmem_cache_alloc_node+0x185/0x3f0 mm/slub.c:3515
 __alloc_skb+0x287/0x330 net/core/skbuff.c:634
 alloc_skb include/linux/skbuff.h:1286 [inline]
 netlink_alloc_large_skb net/netlink/af_netlink.c:1214 [inline]
 netlink_sendmsg+0x9c6/0xe40 net/netlink/af_netlink.c:1885
 sock_sendmsg_nosec net/socket.c:728 [inline]
 sock_sendmsg+0xd9/0x180 net/socket.c:751
 ____sys_sendmsg+0x6ac/0x940 net/socket.c:2538
 ___sys_sendmsg+0x135/0x1d0 net/socket.c:2592
 __sys_sendmsg+0x117/0x1e0 net/socket.c:2621
 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:
 ffff888079c5d980: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc
 ffff888079c5da00: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
>ffff888079c5da80: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
                   ^
 ffff888079c5db00: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
 ffff888079c5db80: 00 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc
==================================================================
==================================================================
BUG: KASAN: slab-use-after-free in memcmp+0x192/0x1c0 lib/string.c:692
Read of size 1 at addr ffff888079c5da80 by task syz-executor.0/18698

CPU: 0 PID: 18698 Comm: syz-executor.0 Tainted: G    B              6.5.0-syzkaller-03967-gbd6c11bc43c4 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Call Trace:
 <TASK>
 __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
 memcmp+0x192/0x1c0 lib/string.c:692
 memcmp include/linux/fortify-string.h:728 [inline]
 compare_mount_options fs/ceph/super.c:622 [inline]
 ceph_compare_super+0x11a/0x8d0 fs/ceph/super.c:1147
 sget_fc+0x582/0x9b0 fs/super.c:778
 ceph_get_tree+0x6ea/0x1910 fs/ceph/super.c:1232
 vfs_get_tree+0x8c/0x370 fs/super.c:1711
 vfs_cmd_create+0x11f/0x2f0 fs/fsopen.c:230
 vfs_fsconfig_locked fs/fsopen.c:294 [inline]
 __do_sys_fsconfig+0x832/0xb90 fs/fsopen.c:475
 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
RIP: 0033:0x7f8400a7cae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f83ff5fe0c8 EFLAGS: 00000246 ORIG_RAX: 00000000000001af
RAX: ffffffffffffffda RBX: 00007f8400b9c050 RCX: 00007f8400a7cae9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000004
RBP: 00007f8400ac847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f8400b9c050 R15: 00007ffd65fa46d8
 </TASK>

Allocated by task 18659:
 kasan_save_stack+0x33/0x50 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+0xa2/0xb0 mm/kasan/common.c:383
 kmalloc include/linux/slab.h:582 [inline]
 kzalloc include/linux/slab.h:703 [inline]
 ceph_init_fs_context+0xc8/0x530 fs/ceph/super.c:1333
 alloc_fs_context+0x56c/0x9f0 fs/fs_context.c:294
 __do_sys_fsopen fs/fsopen.c:137 [inline]
 __se_sys_fsopen fs/fsopen.c:115 [inline]
 __x64_sys_fsopen+0xeb/0x230 fs/fsopen.c:115
 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 18659:
 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+0x15e/0x1b0 mm/kasan/common.c:200
 kasan_slab_free include/linux/kasan.h:162 [inline]
 slab_free_hook mm/slub.c:1792 [inline]
 slab_free_freelist_hook+0x10b/0x1e0 mm/slub.c:1818
 slab_free mm/slub.c:3801 [inline]
 __kmem_cache_free+0xb8/0x2f0 mm/slub.c:3814
 destroy_mount_options fs/ceph/super.c:599 [inline]
 destroy_mount_options+0xe9/0x140 fs/ceph/super.c:588
 destroy_fs_client+0x1b6/0x2b0 fs/ceph/super.c:860
 deactivate_locked_super+0xa0/0x2d0 fs/super.c:454
 ceph_get_tree+0x1270/0x1910 fs/ceph/super.c:1267
 vfs_get_tree+0x8c/0x370 fs/super.c:1711
 vfs_cmd_create+0x11f/0x2f0 fs/fsopen.c:230
 vfs_fsconfig_locked fs/fsopen.c:294 [inline]
 __do_sys_fsconfig+0x832/0xb90 fs/fsopen.c:475
 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

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
 kvfree_call_rcu+0x70/0xbe0 kernel/rcu/tree.c:3372
 cfg80211_update_known_bss+0x821/0xa80 net/wireless/scan.c:1744
 __cfg80211_bss_update+0x1ba/0x2540 net/wireless/scan.c:1788
 cfg80211_inform_single_bss_frame_data+0x7e7/0xf30 net/wireless/scan.c:2881
 cfg80211_inform_bss_frame_data+0xbf/0x290 net/wireless/scan.c:2912
 ieee80211_bss_info_update+0x37b/0x9a0 net/mac80211/scan.c:211
 ieee80211_rx_bss_info net/mac80211/ibss.c:1124 [inline]
 ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1613 [inline]
 ieee80211_ibss_rx_queued_mgmt+0x195f/0x2ee0 net/mac80211/ibss.c:1642
 ieee80211_iface_process_skb net/mac80211/iface.c:1604 [inline]
 ieee80211_iface_work+0xa1f/0xd40 net/mac80211/iface.c:1658
 cfg80211_wiphy_work+0x24e/0x330 net/wireless/core.c:435
 process_one_work+0xaa2/0x16f0 kernel/workqueue.c:2600
 worker_thread+0x687/0x1110 kernel/workqueue.c:2751
 kthread+0x33a/0x430 kernel/kthread.c:389
 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304

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
 kvfree_call_rcu+0x70/0xbe0 kernel/rcu/tree.c:3372
 cfg80211_update_known_bss+0x821/0xa80 net/wireless/scan.c:1744
 __cfg80211_bss_update+0x1ba/0x2540 net/wireless/scan.c:1788
 cfg80211_inform_single_bss_frame_data+0x7e7/0xf30 net/wireless/scan.c:2881
 cfg80211_inform_bss_frame_data+0xbf/0x290 net/wireless/scan.c:2912
 ieee80211_bss_info_update+0x37b/0x9a0 net/mac80211/scan.c:211
 ieee80211_rx_bss_info net/mac80211/ibss.c:1124 [inline]
 ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1613 [inline]
 ieee80211_ibss_rx_queued_mgmt+0x195f/0x2ee0 net/mac80211/ibss.c:1642
 ieee80211_iface_process_skb net/mac80211/iface.c:1604 [inline]
 ieee80211_iface_work+0xa1f/0xd40 net/mac80211/iface.c:1658
 cfg80211_wiphy_work+0x24e/0x330 net/wireless/core.c:435
 process_one_work+0xaa2/0x16f0 kernel/workqueue.c:2600
 worker_thread+0x687/0x1110 kernel/workqueue.c:2751
 kthread+0x33a/0x430 kernel/kthread.c:389
 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304

The buggy address belongs to the object at ffff888079c5da80
 which belongs to the cache kmalloc-96 of size 96
The buggy address is located 0 bytes inside of
 freed 96-byte region [ffff888079c5da80, ffff888079c5dae0)

The buggy address belongs to the physical page:
page:ffffea0001e71740 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x79c5d
flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff00000000200 ffff888012841780 ffffea0001a3aa80 dead000000000002
raw: 0000000000000000 0000000000200020 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x112820(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_HARDWALL), pid 5118, tgid 5118 (kworker/0:6), ts 155647546797, free_ts 155620324374
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x2d2/0x350 mm/page_alloc.c:1570
 prep_new_page mm/page_alloc.c:1577 [inline]
 get_page_from_freelist+0x10a9/0x31e0 mm/page_alloc.c:3221
 __alloc_pages+0x1d0/0x4a0 mm/page_alloc.c:4477
 alloc_pages+0x1a9/0x270 mm/mempolicy.c:2298
 alloc_slab_page mm/slub.c:1862 [inline]
 allocate_slab+0x24e/0x380 mm/slub.c:2009
 new_slab mm/slub.c:2062 [inline]
 ___slab_alloc+0x8bc/0x1570 mm/slub.c:3215
 __slab_alloc.constprop.0+0x56/0xa0 mm/slub.c:3314
 __slab_alloc_node mm/slub.c:3367 [inline]
 slab_alloc_node mm/slub.c:3460 [inline]
 __kmem_cache_alloc_node+0x137/0x350 mm/slub.c:3509
 kmalloc_trace+0x25/0xe0 mm/slab_common.c:1076
 kmalloc include/linux/slab.h:582 [inline]
 dst_cow_metrics_generic+0x4c/0x1f0 net/core/dst.c:180
 dst_metrics_write_ptr include/net/dst.h:133 [inline]
 dst_metric_set include/net/dst.h:194 [inline]
 icmp6_dst_alloc+0x4a2/0x620 net/ipv6/route.c:3273
 ndisc_send_skb+0x100c/0x1430 net/ipv6/ndisc.c:489
 ndisc_send_rs+0x133/0x690 net/ipv6/ndisc.c:719
 addrconf_rs_timer+0x412/0x840 net/ipv6/addrconf.c:3973
 call_timer_fn+0x1a0/0x580 kernel/time/timer.c:1700
 expire_timers kernel/time/timer.c:1751 [inline]
 __run_timers+0x764/0xb10 kernel/time/timer.c:2022
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1161 [inline]
 free_unref_page_prepare+0x508/0xb90 mm/page_alloc.c:2348
 free_unref_page+0x33/0x3b0 mm/page_alloc.c:2443
 qlink_free mm/kasan/quarantine.c:166 [inline]
 qlist_free_all+0x6a/0x170 mm/kasan/quarantine.c:185
 kasan_quarantine_reduce+0x18b/0x1d0 mm/kasan/quarantine.c:292
 __kasan_slab_alloc+0x65/0x90 mm/kasan/common.c:305
 kasan_slab_alloc include/linux/kasan.h:186 [inline]
 slab_post_alloc_hook mm/slab.h:762 [inline]
 slab_alloc_node mm/slub.c:3470 [inline]
 kmem_cache_alloc_node+0x185/0x3f0 mm/slub.c:3515
 __alloc_skb+0x287/0x330 net/core/skbuff.c:634
 alloc_skb include/linux/skbuff.h:1286 [inline]
 netlink_alloc_large_skb net/netlink/af_netlink.c:1214 [inline]
 netlink_sendmsg+0x9c6/0xe40 net/netlink/af_netlink.c:1885
 sock_sendmsg_nosec net/socket.c:728 [inline]
 sock_sendmsg+0xd9/0x180 net/socket.c:751
 ____sys_sendmsg+0x6ac/0x940 net/socket.c:2538
 ___sys_sendmsg+0x135/0x1d0 net/socket.c:2592
 __sys_sendmsg+0x117/0x1e0 net/socket.c:2621
 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:
 ffff888079c5d980: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc
 ffff888079c5da00: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
>ffff888079c5da80: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
                   ^
 ffff888079c5db00: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
 ffff888079c5db80: 00 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc
==================================================================
==================================================================
BUG: KASAN: slab-use-after-free in memcmp+0x192/0x1c0 lib/string.c:692
Read of size 1 at addr ffff888079c5da81 by task syz-executor.0/18698

CPU: 0 PID: 18698 Comm: syz-executor.0 Tainted: G    B              6.5.0-syzkaller-03967-gbd6c11bc43c4 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Call Trace:
 <TASK>
 __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
 memcmp+0x192/0x1c0 lib/string.c:692
 memcmp include/linux/fortify-string.h:728 [inline]
 compare_mount_options fs/ceph/super.c:622 [inline]
 ceph_compare_super+0x11a/0x8d0 fs/ceph/super.c:1147
 sget_fc+0x582/0x9b0 fs/super.c:778
 ceph_get_tree+0x6ea/0x1910 fs/ceph/super.c:1232
 vfs_get_tree+0x8c/0x370 fs/super.c:1711
 vfs_cmd_create+0x11f/0x2f0 fs/fsopen.c:230
 vfs_fsconfig_locked fs/fsopen.c:294 [inline]
 __do_sys_fsconfig+0x832/0xb90 fs/fsopen.c:475
 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
RIP: 0033:0x7f8400a7cae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f83ff5fe0c8 EFLAGS: 00000246 ORIG_RAX: 00000000000001af
RAX: ffffffffffffffda RBX: 00007f8400b9c050 RCX: 00007f8400a7cae9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000004
RBP: 00007f8400ac847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f8400b9c050 R15: 00007ffd65fa46d8
 </TASK>

Allocated by task 18659:
 kasan_save_stack+0x33/0x50 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+0xa2/0xb0 mm/kasan/common.c:383
 kmalloc include/linux/slab.h:582 [inline]
 kzalloc include/linux/slab.h:703 [inline]
 ceph_init_fs_context+0xc8/0x530 fs/ceph/super.c:1333
 alloc_fs_context+0x56c/0x9f0 fs/fs_context.c:294
 __do_sys_fsopen fs/fsopen.c:137 [inline]
 __se_sys_fsopen fs/fsopen.c:115 [inline]
 __x64_sys_fsopen+0xeb/0x230 fs/fsopen.c:115
 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 18659:
 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+0x15e/0x1b0 mm/kasan/common.c:200
 kasan_slab_free include/linux/kasan.h:162 [inline]
 slab_free_hook mm/slub.c:1792 [inline]
 slab_free_freelist_hook+0x10b/0x1e0 mm/slub.c:1818
 slab_free mm/slub.c:3801 [inline]
 __kmem_cache_free+0xb8/0x2f0 mm/slub.c:3814
 destroy_mount_options fs/ceph/super.c:599 [inline]
 destroy_mount_options+0xe9/0x140 fs/ceph/super.c:588
 destroy_fs_client+0x1b6/0x2b0 fs/ceph/super.c:860
 deactivate_locked_super+0xa0/0x2d0 fs/super.c:454
 ceph_get_tree+0x1270/0x1910 fs/ceph/super.c:1267
 vfs_get_tree+0x8c/0x370 fs/super.c:1711
 vfs_cmd_create+0x11f/0x2f0 fs/fsopen.c:230
 vfs_fsconfig_locked fs/fsopen.c:294 [inline]
 __do_sys_fsconfig+0x832/0xb90 fs/fsopen.c:475
 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

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
 kvfree_call_rcu+0x70/0xbe0 kernel/rcu/tree.c:3372
 cfg80211_update_known_bss+0x821/0xa80 net/wireless/scan.c:1744
 __cfg80211_bss_update+0x1ba/0x2540 net/wireless/scan.c:1788
 cfg80211_inform_single_bss_frame_data+0x7e7/0xf30 net/wireless/scan.c:2881
 cfg80211_inform_bss_frame_data+0xbf/0x290 net/wireless/scan.c:2912
 ieee80211_bss_info_update+0x37b/0x9a0 net/mac80211/scan.c:211
 ieee80211_rx_bss_info net/mac80211/ibss.c:1124 [inline]
 ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1613 [inline]
 ieee80211_ibss_rx_queued_mgmt+0x195f/0x2ee0 net/mac80211/ibss.c:1642
 ieee80211_iface_process_skb net/mac80211/iface.c:1604 [inline]
 ieee80211_iface_work+0xa1f/0xd40 net/mac80211/iface.c:1658
 cfg80211_wiphy_work+0x24e/0x330 net/wireless/core.c:435
 process_one_work+0xaa2/0x16f0 kernel/workqueue.c:2600
 worker_thread+0x687/0x1110 kernel/workqueue.c:2751
 kthread+0x33a/0x430 kernel/kthread.c:389
 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304

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
 kvfree_call_rcu+0x70/0xbe0 kernel/rcu/tree.c:3372
 cfg80211_update_known_bss+0x821/0xa80 net/wireless/scan.c:1744
 __cfg80211_bss_update+0x1ba/0x2540 net/wireless/scan.c:1788
 cfg80211_inform_single_bss_frame_data+0x7e7/0xf30 net/wireless/scan.c:2881
 cfg80211_inform_bss_frame_data+0xbf/0x290 net/wireless/scan.c:2912
 ieee80211_bss_info_update+0x37b/0x9a0 net/mac80211/scan.c:211
 ieee80211_rx_bss_info net/mac80211/ibss.c:1124 [inline]
 ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1613 [inline]
 ieee80211_ibss_rx_queued_mgmt+0x195f/0x2ee0 net/mac80211/ibss.c:1642
 ieee80211_iface_process_skb net/mac80211/iface.c:1604 [inline]
 ieee80211_iface_work+0xa1f/0xd40 net/mac80211/iface.c:1658
 cfg80211_wiphy_work+0x24e/0x330 net/wireless/core.c:435
 process_one_work+0xaa2/0x16f0 kernel/workqueue.c:2600
 worker_thread+0x687/0x1110 kernel/workqueue.c:2751
 kthread+0x33a/0x430 kernel/kthread.c:389
 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304

The buggy address belongs to the object at ffff888079c5da80
 which belongs to the cache kmalloc-96 of size 96
The buggy address is located 1 bytes inside of
 freed 96-byte region [ffff888079c5da80, ffff888079c5dae0)

The buggy address belongs to the physical page:
page:ffffea0001e71740 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x79c5d
flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff00000000200 ffff888012841780 ffffea0001a3aa80 dead000000000002
raw: 0000000000000000 0000000000200020 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x112820(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_HARDWALL), pid 5118, tgid 5118 (kworker/0:6), ts 155647546797, free_ts 155620324374
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x2d2/0x350 mm/page_alloc.c:1570
 prep_new_page mm/page_alloc.c:1577 [inline]
 get_page_from_freelist+0x10a9/0x31e0 mm/page_alloc.c:3221
 __alloc_pages+0x1d0/0x4a0 mm/page_alloc.c:4477
 alloc_pages+0x1a9/0x270 mm/mempolicy.c:2298
 alloc_slab_page mm/slub.c:1862 [inline]
 allocate_slab+0x24e/0x380 mm/slub.c:2009
 new_slab mm/slub.c:2062 [inline]
 ___slab_alloc+0x8bc/0x1570 mm/slub.c:3215
 __slab_alloc.constprop.0+0x56/0xa0 mm/slub.c:3314
 __slab_alloc_node mm/slub.c:3367 [inline]
 slab_alloc_node mm/slub.c:3460 [inline]
 __kmem_cache_alloc_node+0x137/0x350 mm/slub.c:3509
 kmalloc_trace+0x25/0xe0 mm/slab_common.c:1076
 kmalloc include/linux/slab.h:582 [inline]
 dst_cow_metrics_generic+0x4c/0x1f0 net/core/dst.c:180
 dst_metrics_write_ptr include/net/dst.h:133 [inline]
 dst_metric_set include/net/dst.h:194 [inline]
 icmp6_dst_alloc+0x4a2/0x620 net/ipv6/route.c:3273
 ndisc_send_skb+0x100c/0x1430 net/ipv6/ndisc.c:489
 ndisc_send_rs+0x133/0x690 net/ipv6/ndisc.c:719
 addrconf_rs_timer+0x412/0x840 net/ipv6/addrconf.c:3973
 call_timer_fn+0x1a0/0x580 kernel/time/timer.c:1700
 expire_timers kernel/time/timer.c:1751 [inline]
 __run_timers+0x764/0xb10 kernel/time/timer.c:2022
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1161 [inline]
 free_unref_page_prepare+0x508/0xb90 mm/page_alloc.c:2348
 free_unref_page+0x33/0x3b0 mm/page_alloc.c:2443
 qlink_free mm/kasan/quarantine.c:166 [inline]
 qlist_free_all+0x6a/0x170 mm/kasan/quarantine.c:185
 kasan_quarantine_reduce+0x18b/0x1d0 mm/kasan/quarantine.c:292
 __kasan_slab_alloc+0x65/0x90 mm/kasan/common.c:305
 kasan_slab_alloc include/linux/kasan.h:186 [inline]
 slab_post_alloc_hook mm/slab.h:762 [inline]
 slab_alloc_node mm/slub.c:3470 [inline]
 kmem_cache_alloc_node+0x185/0x3f0 mm/slub.c:3515
 __alloc_skb+0x287/0x330 net/core/skbuff.c:634
 alloc_skb include/linux/skbuff.h:1286 [inline]
 netlink_alloc_large_skb net/netlink/af_netlink.c:1214 [inline]
 netlink_sendmsg+0x9c6/0xe40 net/netlink/af_netlink.c:1885
 sock_sendmsg_nosec net/socket.c:728 [inline]
 sock_sendmsg+0xd9/0x180 net/socket.c:751
 ____sys_sendmsg+0x6ac/0x940 net/socket.c:2538
 ___sys_sendmsg+0x135/0x1d0 net/socket.c:2592
 __sys_sendmsg+0x117/0x1e0 net/socket.c:2621
 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:
 ffff888079c5d980: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc
 ffff888079c5da00: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
>ffff888079c5da80: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
                   ^
 ffff888079c5db00: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
 ffff888079c5db80: 00 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc
==================================================================
ceph: No mds server is up or the cluster is laggy