bridge0: port 3(gretap0) entered disabled state
device gretap0 left promiscuous mode
bridge0: port 3(gretap0) entered disabled state
=====================================================
BUG: KMSAN: uninit-value in kernfs_remove_by_name include/linux/kernfs.h:618 [inline]
BUG: KMSAN: uninit-value in remove_files fs/sysfs/group.c:28 [inline]
BUG: KMSAN: uninit-value in sysfs_remove_group+0x20f/0x540 fs/sysfs/group.c:288
 kernfs_remove_by_name include/linux/kernfs.h:618 [inline]
 remove_files fs/sysfs/group.c:28 [inline]
 sysfs_remove_group+0x20f/0x540 fs/sysfs/group.c:288
 sysfs_remove_groups+0x64/0xf0 fs/sysfs/group.c:312
 destroy_gid_attrs drivers/infiniband/core/sysfs.c:1189 [inline]
 ib_free_port_attrs+0x105/0x740 drivers/infiniband/core/sysfs.c:1409
 remove_one_compat_dev drivers/infiniband/core/device.c:1002 [inline]
 rdma_dev_exit_net+0x3cd/0x660 drivers/infiniband/core/device.c:1140
 ops_exit_list net/core/net_namespace.c:162 [inline]
 cleanup_net+0xd0f/0x18c0 net/core/net_namespace.c:594
 process_one_work+0xb27/0x13e0 kernel/workqueue.c:2289
 worker_thread+0x1076/0x1d60 kernel/workqueue.c:2436
 kthread+0x31b/0x430 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306

Uninit was created at:
 __kmalloc_large_node+0x1bc/0x290 mm/slab_common.c:1108
 __do_kmalloc_node mm/slab_common.c:943 [inline]
 __kmalloc_node+0x1d2/0x3c0 mm/slab_common.c:962
 kmalloc_node include/linux/slab.h:602 [inline]
 kvmalloc_node+0xbc/0x2d0 mm/util.c:581
 kvmalloc include/linux/slab.h:729 [inline]
 zlib_alloc_workspace+0x111/0x5e0 fs/btrfs/zlib.c:66
 alloc_workspace+0x329/0x5a0 fs/btrfs/compression.c:937
 btrfs_init_workspace_manager+0x11f/0x4d0 fs/btrfs/compression.c:980
 btrfs_init_compress+0x1f/0x30 fs/btrfs/compression.c:1247
 init_btrfs_fs+0x94/0x5f2 fs/btrfs/super.c:2720
 do_one_initcall+0x221/0x860 init/main.c:1303
 do_initcall_level+0x146/0x322 init/main.c:1376
 do_initcalls+0x11a/0x201 init/main.c:1392
 do_basic_setup+0x22/0x24 init/main.c:1411
 kernel_init_freeable+0x308/0x4d0 init/main.c:1631
 kernel_init+0x2b/0x7d0 init/main.c:1519
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306

CPU: 1 PID: 3879 Comm: kworker/u4:35 Tainted: G        W          6.1.0-rc2-syzkaller-61959-gbe8b0d020631 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022
Workqueue: netns cleanup_net
=====================================================