==================================================================
BUG: KASAN: slab-use-after-free in __list_add_valid_or_report+0x151/0x190 lib/list_debug.c:32
Read of size 8 at addr ffff888057c7e468 by task syz.9.1887/16763

CPU: 0 UID: 0 PID: 16763 Comm: syz.9.1887 Not tainted 6.15.0-rc5-syzkaller-00300-g3ce9925823c7 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:408 [inline]
 print_report+0xc3/0x670 mm/kasan/report.c:521
 kasan_report+0xe0/0x110 mm/kasan/report.c:634
 __list_add_valid_or_report+0x151/0x190 lib/list_debug.c:32
 __list_add_valid include/linux/list.h:88 [inline]
 __list_add include/linux/list.h:150 [inline]
 list_add_tail include/linux/list.h:183 [inline]
 list_lru_add+0xf6/0x2e0 mm/list_lru.c:167
 list_lru_add_obj+0x194/0x2f0 mm/list_lru.c:189
 qd_put+0x119/0x190 fs/gfs2/quota.c:342
 gfs2_quota_sync+0x358/0x570 fs/gfs2/quota.c:1361
 gfs2_sync_fs+0x44/0xb0 fs/gfs2/super.c:670
 sync_filesystem+0x111/0x290 fs/sync.c:56
 gfs2_reconfigure+0xca/0xf10 fs/gfs2/ops_fstype.c:1550
 reconfigure_super+0x450/0xb60 fs/super.c:1083
 do_remount fs/namespace.c:3365 [inline]
 path_mount+0x1726/0x1f20 fs/namespace.c:4200
 do_mount fs/namespace.c:4221 [inline]
 __do_sys_mount fs/namespace.c:4432 [inline]
 __se_sys_mount fs/namespace.c:4409 [inline]
 __x64_sys_mount+0x28d/0x310 fs/namespace.c:4409
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd72bf8e969
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd72ce69038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fd72c1b6080 RCX: 00007fd72bf8e969
RDX: 0000000000000000 RSI: 0000200000000000 RDI: 0000000000000000
RBP: 00007fd72c010ab1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000003376039 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fd72c1b6080 R15: 00007ffef361cc38
 </TASK>

Allocated by task 15317:
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
 kasan_save_track+0x14/0x30 mm/kasan/common.c:68
 unpoison_slab_object mm/kasan/common.c:319 [inline]
 __kasan_slab_alloc+0x89/0x90 mm/kasan/common.c:345
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4147 [inline]
 slab_alloc_node mm/slub.c:4196 [inline]
 kmem_cache_alloc_noprof+0x1cb/0x3b0 mm/slub.c:4203
 qd_alloc+0x4e/0x2f0 fs/gfs2/quota.c:234
 gfs2_quota_init+0x66d/0x13f0 fs/gfs2/quota.c:1448
 gfs2_make_fs_rw+0x39d/0x5c0 fs/gfs2/super.c:159
 gfs2_fill_super+0x2afa/0x2d70 fs/gfs2/ops_fstype.c:1274
 get_tree_bdev_flags+0x38c/0x620 fs/super.c:1636
 gfs2_get_tree+0x4e/0x280 fs/gfs2/ops_fstype.c:1330
 vfs_get_tree+0x8e/0x340 fs/super.c:1759
 do_new_mount fs/namespace.c:3881 [inline]
 path_mount+0x14d4/0x1f20 fs/namespace.c:4208
 do_mount fs/namespace.c:4221 [inline]
 __do_sys_mount fs/namespace.c:4432 [inline]
 __se_sys_mount fs/namespace.c:4409 [inline]
 __x64_sys_mount+0x28d/0x310 fs/namespace.c:4409
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Freed by task 15:
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
 kasan_save_track+0x14/0x30 mm/kasan/common.c:68
 kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:576
 poison_slab_object mm/kasan/common.c:247 [inline]
 __kasan_slab_free+0x51/0x70 mm/kasan/common.c:264
 kasan_slab_free include/linux/kasan.h:233 [inline]
 slab_free_hook mm/slub.c:2380 [inline]
 slab_free mm/slub.c:4642 [inline]
 kmem_cache_free+0x2d4/0x4d0 mm/slub.c:4744
 gfs2_qd_dealloc+0x69/0xf0 fs/gfs2/quota.c:111
 rcu_do_batch kernel/rcu/tree.c:2568 [inline]
 rcu_core+0x79c/0x14e0 kernel/rcu/tree.c:2824
 handle_softirqs+0x219/0x8e0 kernel/softirq.c:579
 run_ksoftirqd kernel/softirq.c:968 [inline]
 run_ksoftirqd+0x3a/0x60 kernel/softirq.c:960
 smpboot_thread_fn+0x3f7/0xae0 kernel/smpboot.c:164
 kthread+0x3c5/0x780 kernel/kthread.c:464
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Last potentially related work creation:
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
 kasan_record_aux_stack+0xb8/0xd0 mm/kasan/generic.c:548
 __call_rcu_common.constprop.0+0x9a/0x9f0 kernel/rcu/tree.c:3082
 qd_put+0x153/0x190 fs/gfs2/quota.c:337
 gfs2_quota_sync+0x358/0x570 fs/gfs2/quota.c:1361
 gfs2_sync_fs+0x44/0xb0 fs/gfs2/super.c:670
 sync_filesystem+0x111/0x290 fs/sync.c:56
 gfs2_reconfigure+0xca/0xf10 fs/gfs2/ops_fstype.c:1550
 reconfigure_super+0x450/0xb60 fs/super.c:1083
 do_remount fs/namespace.c:3365 [inline]
 path_mount+0x1726/0x1f20 fs/namespace.c:4200
 do_mount fs/namespace.c:4221 [inline]
 __do_sys_mount fs/namespace.c:4432 [inline]
 __se_sys_mount fs/namespace.c:4409 [inline]
 __x64_sys_mount+0x28d/0x310 fs/namespace.c:4409
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff888057c7e3f0
 which belongs to the cache gfs2_quotad of size 272
The buggy address is located 120 bytes inside of
 freed 272-byte region [ffff888057c7e3f0, ffff888057c7e500)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888057c7e3f0 pfn:0x57c7e
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000000 ffff88801cb9b640 dead000000000122 0000000000000000
raw: ffff888057c7e3f0 00000000800c0009 00000000f5000000 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Reclaimable, gfp_mask 0x52c50(GFP_NOFS|__GFP_RECLAIMABLE|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 8889, tgid 8888 (syz.3.449), ts 596183401302, free_ts 575359660747
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x181/0x1b0 mm/page_alloc.c:1718
 prep_new_page mm/page_alloc.c:1726 [inline]
 get_page_from_freelist+0x135c/0x3920 mm/page_alloc.c:3688
 __alloc_frozen_pages_noprof+0x263/0x23a0 mm/page_alloc.c:4970
 alloc_pages_mpol+0x1fb/0x550 mm/mempolicy.c:2301
 alloc_slab_page mm/slub.c:2450 [inline]
 allocate_slab mm/slub.c:2618 [inline]
 new_slab+0x244/0x340 mm/slub.c:2672
 ___slab_alloc+0xd9c/0x1940 mm/slub.c:3858
 __slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3948
 __slab_alloc_node mm/slub.c:4023 [inline]
 slab_alloc_node mm/slub.c:4184 [inline]
 kmem_cache_alloc_noprof+0xef/0x3b0 mm/slub.c:4203
 qd_alloc+0x4e/0x2f0 fs/gfs2/quota.c:234
 gfs2_quota_init+0x66d/0x13f0 fs/gfs2/quota.c:1448
 gfs2_make_fs_rw+0x39d/0x5c0 fs/gfs2/super.c:159
 gfs2_fill_super+0x2afa/0x2d70 fs/gfs2/ops_fstype.c:1274
 get_tree_bdev_flags+0x38c/0x620 fs/super.c:1636
 gfs2_get_tree+0x4e/0x280 fs/gfs2/ops_fstype.c:1330
 vfs_get_tree+0x8e/0x340 fs/super.c:1759
 do_new_mount fs/namespace.c:3881 [inline]
 path_mount+0x14d4/0x1f20 fs/namespace.c:4208
page last free pid 5947 tgid 5947 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1262 [inline]
 __free_frozen_pages+0x69d/0xff0 mm/page_alloc.c:2725
 discard_slab mm/slub.c:2716 [inline]
 __put_partials+0x16d/0x1c0 mm/slub.c:3185
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x4e/0x120 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:329
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4147 [inline]
 slab_alloc_node mm/slub.c:4196 [inline]
 kmem_cache_alloc_lru_noprof+0x1d0/0x3b0 mm/slub.c:4215
 sock_alloc_inode+0x25/0x1c0 net/socket.c:309
 alloc_inode+0x64/0x240 fs/inode.c:346
 new_inode_pseudo include/linux/fs.h:3309 [inline]
 sock_alloc+0x40/0x280 net/socket.c:622
 __sock_create+0xc1/0x8d0 net/socket.c:1505
 rds_tcp_conn_path_connect+0x2d0/0x7f0 net/rds/tcp_connect.c:115
 rds_connect_worker+0x1af/0x2c0 net/rds/threads.c:176
 process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3238
 process_scheduled_works kernel/workqueue.c:3319 [inline]
 worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400
 kthread+0x3c5/0x780 kernel/kthread.c:464
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:153

Memory state around the buggy address:
 ffff888057c7e300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff888057c7e380: 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fa fb
>ffff888057c7e400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                                          ^
 ffff888057c7e480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888057c7e500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================
==================================================================
BUG: KASAN: slab-use-after-free in __list_add include/linux/list.h:156 [inline]
BUG: KASAN: slab-use-after-free in list_add_tail include/linux/list.h:183 [inline]
BUG: KASAN: slab-use-after-free in list_lru_add+0x284/0x2e0 mm/list_lru.c:167
Write of size 8 at addr ffff888057c7e468 by task syz.9.1887/16763

CPU: 0 UID: 0 PID: 16763 Comm: syz.9.1887 Tainted: G    B               6.15.0-rc5-syzkaller-00300-g3ce9925823c7 #0 PREEMPT(full) 
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:408 [inline]
 print_report+0xc3/0x670 mm/kasan/report.c:521
 kasan_report+0xe0/0x110 mm/kasan/report.c:634
 __list_add include/linux/list.h:156 [inline]
 list_add_tail include/linux/list.h:183 [inline]
 list_lru_add+0x284/0x2e0 mm/list_lru.c:167
 list_lru_add_obj+0x194/0x2f0 mm/list_lru.c:189
 qd_put+0x119/0x190 fs/gfs2/quota.c:342
 gfs2_quota_sync+0x358/0x570 fs/gfs2/quota.c:1361
 gfs2_sync_fs+0x44/0xb0 fs/gfs2/super.c:670
 sync_filesystem+0x111/0x290 fs/sync.c:56
 gfs2_reconfigure+0xca/0xf10 fs/gfs2/ops_fstype.c:1550
 reconfigure_super+0x450/0xb60 fs/super.c:1083
 do_remount fs/namespace.c:3365 [inline]
 path_mount+0x1726/0x1f20 fs/namespace.c:4200
 do_mount fs/namespace.c:4221 [inline]
 __do_sys_mount fs/namespace.c:4432 [inline]
 __se_sys_mount fs/namespace.c:4409 [inline]
 __x64_sys_mount+0x28d/0x310 fs/namespace.c:4409
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd72bf8e969
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd72ce69038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fd72c1b6080 RCX: 00007fd72bf8e969
RDX: 0000000000000000 RSI: 0000200000000000 RDI: 0000000000000000
RBP: 00007fd72c010ab1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000003376039 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fd72c1b6080 R15: 00007ffef361cc38
 </TASK>

Allocated by task 15317:
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
 kasan_save_track+0x14/0x30 mm/kasan/common.c:68
 unpoison_slab_object mm/kasan/common.c:319 [inline]
 __kasan_slab_alloc+0x89/0x90 mm/kasan/common.c:345
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4147 [inline]
 slab_alloc_node mm/slub.c:4196 [inline]
 kmem_cache_alloc_noprof+0x1cb/0x3b0 mm/slub.c:4203
 qd_alloc+0x4e/0x2f0 fs/gfs2/quota.c:234
 gfs2_quota_init+0x66d/0x13f0 fs/gfs2/quota.c:1448
 gfs2_make_fs_rw+0x39d/0x5c0 fs/gfs2/super.c:159
 gfs2_fill_super+0x2afa/0x2d70 fs/gfs2/ops_fstype.c:1274
 get_tree_bdev_flags+0x38c/0x620 fs/super.c:1636
 gfs2_get_tree+0x4e/0x280 fs/gfs2/ops_fstype.c:1330
 vfs_get_tree+0x8e/0x340 fs/super.c:1759
 do_new_mount fs/namespace.c:3881 [inline]
 path_mount+0x14d4/0x1f20 fs/namespace.c:4208
 do_mount fs/namespace.c:4221 [inline]
 __do_sys_mount fs/namespace.c:4432 [inline]
 __se_sys_mount fs/namespace.c:4409 [inline]
 __x64_sys_mount+0x28d/0x310 fs/namespace.c:4409
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Freed by task 15:
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
 kasan_save_track+0x14/0x30 mm/kasan/common.c:68
 kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:576
 poison_slab_object mm/kasan/common.c:247 [inline]
 __kasan_slab_free+0x51/0x70 mm/kasan/common.c:264
 kasan_slab_free include/linux/kasan.h:233 [inline]
 slab_free_hook mm/slub.c:2380 [inline]
 slab_free mm/slub.c:4642 [inline]
 kmem_cache_free+0x2d4/0x4d0 mm/slub.c:4744
 gfs2_qd_dealloc+0x69/0xf0 fs/gfs2/quota.c:111
 rcu_do_batch kernel/rcu/tree.c:2568 [inline]
 rcu_core+0x79c/0x14e0 kernel/rcu/tree.c:2824
 handle_softirqs+0x219/0x8e0 kernel/softirq.c:579
 run_ksoftirqd kernel/softirq.c:968 [inline]
 run_ksoftirqd+0x3a/0x60 kernel/softirq.c:960
 smpboot_thread_fn+0x3f7/0xae0 kernel/smpboot.c:164
 kthread+0x3c5/0x780 kernel/kthread.c:464
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Last potentially related work creation:
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
 kasan_record_aux_stack+0xb8/0xd0 mm/kasan/generic.c:548
 __call_rcu_common.constprop.0+0x9a/0x9f0 kernel/rcu/tree.c:3082
 qd_put+0x153/0x190 fs/gfs2/quota.c:337
 gfs2_quota_sync+0x358/0x570 fs/gfs2/quota.c:1361
 gfs2_sync_fs+0x44/0xb0 fs/gfs2/super.c:670
 sync_filesystem+0x111/0x290 fs/sync.c:56
 gfs2_reconfigure+0xca/0xf10 fs/gfs2/ops_fstype.c:1550
 reconfigure_super+0x450/0xb60 fs/super.c:1083
 do_remount fs/namespace.c:3365 [inline]
 path_mount+0x1726/0x1f20 fs/namespace.c:4200
 do_mount fs/namespace.c:4221 [inline]
 __do_sys_mount fs/namespace.c:4432 [inline]
 __se_sys_mount fs/namespace.c:4409 [inline]
 __x64_sys_mount+0x28d/0x310 fs/namespace.c:4409
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff888057c7e3f0
 which belongs to the cache gfs2_quotad of size 272
The buggy address is located 120 bytes inside of
 freed 272-byte region [ffff888057c7e3f0, ffff888057c7e500)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888057c7e3f0 pfn:0x57c7e
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000000 ffff88801cb9b640 dead000000000122 0000000000000000
raw: ffff888057c7e3f0 00000000800c0009 00000000f5000000 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Reclaimable, gfp_mask 0x52c50(GFP_NOFS|__GFP_RECLAIMABLE|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 8889, tgid 8888 (syz.3.449), ts 596183401302, free_ts 575359660747
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x181/0x1b0 mm/page_alloc.c:1718
 prep_new_page mm/page_alloc.c:1726 [inline]
 get_page_from_freelist+0x135c/0x3920 mm/page_alloc.c:3688
 __alloc_frozen_pages_noprof+0x263/0x23a0 mm/page_alloc.c:4970
 alloc_pages_mpol+0x1fb/0x550 mm/mempolicy.c:2301
 alloc_slab_page mm/slub.c:2450 [inline]
 allocate_slab mm/slub.c:2618 [inline]
 new_slab+0x244/0x340 mm/slub.c:2672
 ___slab_alloc+0xd9c/0x1940 mm/slub.c:3858
 __slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3948
 __slab_alloc_node mm/slub.c:4023 [inline]
 slab_alloc_node mm/slub.c:4184 [inline]
 kmem_cache_alloc_noprof+0xef/0x3b0 mm/slub.c:4203
 qd_alloc+0x4e/0x2f0 fs/gfs2/quota.c:234
 gfs2_quota_init+0x66d/0x13f0 fs/gfs2/quota.c:1448
 gfs2_make_fs_rw+0x39d/0x5c0 fs/gfs2/super.c:159
 gfs2_fill_super+0x2afa/0x2d70 fs/gfs2/ops_fstype.c:1274
 get_tree_bdev_flags+0x38c/0x620 fs/super.c:1636
 gfs2_get_tree+0x4e/0x280 fs/gfs2/ops_fstype.c:1330
 vfs_get_tree+0x8e/0x340 fs/super.c:1759
 do_new_mount fs/namespace.c:3881 [inline]
 path_mount+0x14d4/0x1f20 fs/namespace.c:4208
page last free pid 5947 tgid 5947 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1262 [inline]
 __free_frozen_pages+0x69d/0xff0 mm/page_alloc.c:2725
 discard_slab mm/slub.c:2716 [inline]
 __put_partials+0x16d/0x1c0 mm/slub.c:3185
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x4e/0x120 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:329
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4147 [inline]
 slab_alloc_node mm/slub.c:4196 [inline]
 kmem_cache_alloc_lru_noprof+0x1d0/0x3b0 mm/slub.c:4215
 sock_alloc_inode+0x25/0x1c0 net/socket.c:309
 alloc_inode+0x64/0x240 fs/inode.c:346
 new_inode_pseudo include/linux/fs.h:3309 [inline]
 sock_alloc+0x40/0x280 net/socket.c:622
 __sock_create+0xc1/0x8d0 net/socket.c:1505
 rds_tcp_conn_path_connect+0x2d0/0x7f0 net/rds/tcp_connect.c:115
 rds_connect_worker+0x1af/0x2c0 net/rds/threads.c:176
 process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3238
 process_scheduled_works kernel/workqueue.c:3319 [inline]
 worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400
 kthread+0x3c5/0x780 kernel/kthread.c:464
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:153

Memory state around the buggy address:
 ffff888057c7e300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff888057c7e380: 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fa fb
>ffff888057c7e400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                                          ^
 ffff888057c7e480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888057c7e500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================