==================================================================
BUG: KASAN: slab-out-of-bounds in cfg80211_wext_freq+0x170/0x1ac net/wireless/wext-compat.c:235
Read of size 2 at addr ffff0000ecf34940 by task syz.2.460/5978

CPU: 0 PID: 5978 Comm: syz.2.460 Not tainted 6.1.94-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Call trace:
 dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:284 [inline]
 print_report+0x174/0x4c0 mm/kasan/report.c:395
 kasan_report+0xd4/0x130 mm/kasan/report.c:495
 __asan_report_load2_noabort+0x2c/0x38 mm/kasan/report_generic.c:349
 cfg80211_wext_freq+0x170/0x1ac net/wireless/wext-compat.c:235
 cfg80211_wext_siwscan+0x430/0xee8 net/wireless/scan.c:2751
 ioctl_standard_iw_point+0x7f0/0xdc4 net/wireless/wext-core.c:848
 ioctl_standard_call+0xcc/0x264 net/wireless/wext-core.c:1033
 wext_ioctl_dispatch+0x16c/0x3ec net/wireless/wext-core.c:997
 wext_handle_ioctl+0x1f8/0x3f4 net/wireless/wext-core.c:1058
 sock_ioctl+0x140/0x858 net/socket.c:1255
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl fs/ioctl.c:856 [inline]
 __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:856
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206
 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585

Allocated by task 5978:
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4c/0x80 mm/kasan/common.c:52
 kasan_save_alloc_info+0x24/0x30 mm/kasan/generic.c:505
 ____kasan_kmalloc mm/kasan/common.c:374 [inline]
 __kasan_kmalloc+0xac/0xc4 mm/kasan/common.c:383
 kasan_kmalloc include/linux/kasan.h:211 [inline]
 __do_kmalloc_node mm/slab_common.c:955 [inline]
 __kmalloc+0xd8/0x1c4 mm/slab_common.c:968
 kmalloc include/linux/slab.h:561 [inline]
 kzalloc include/linux/slab.h:692 [inline]
 ioctl_standard_iw_point+0x3b8/0xdc4 net/wireless/wext-core.c:809
 ioctl_standard_call+0xcc/0x264 net/wireless/wext-core.c:1033
 wext_ioctl_dispatch+0x16c/0x3ec net/wireless/wext-core.c:997
 wext_handle_ioctl+0x1f8/0x3f4 net/wireless/wext-core.c:1058
 sock_ioctl+0x140/0x858 net/socket.c:1255
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl fs/ioctl.c:856 [inline]
 __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:856
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206
 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585

Last potentially related work creation:
 kasan_save_stack+0x40/0x70 mm/kasan/common.c:45
 __kasan_record_aux_stack+0xcc/0xe8 mm/kasan/generic.c:486
 kasan_record_aux_stack_noalloc+0x14/0x20 mm/kasan/generic.c:496
 call_rcu+0xfc/0xa40 kernel/rcu/tree.c:2844
 fib6_info_release include/net/ip6_fib.h:340 [inline]
 fixup_permanent_addr net/ipv6/addrconf.c:3522 [inline]
 addrconf_permanent_addr+0x308/0xa8c net/ipv6/addrconf.c:3550
 addrconf_notify+0x7ac/0xc94 net/ipv6/addrconf.c:3622
 notifier_call_chain kernel/notifier.c:87 [inline]
 raw_notifier_call_chain+0xd4/0x164 kernel/notifier.c:455
 __dev_notify_flags+0x2ac/0x534
 dev_change_flags+0xc8/0x154 net/core/dev.c:8661
 do_setlink+0xacc/0x3318 net/core/rtnetlink.c:2801
 __rtnl_newlink net/core/rtnetlink.c:3576 [inline]
 rtnl_newlink+0x1424/0x1b74 net/core/rtnetlink.c:3623
 rtnetlink_rcv_msg+0x72c/0xd94 net/core/rtnetlink.c:6121
 netlink_rcv_skb+0x20c/0x3b8 net/netlink/af_netlink.c:2508
 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:6139
 netlink_unicast_kernel net/netlink/af_netlink.c:1326 [inline]
 netlink_unicast+0x65c/0x898 net/netlink/af_netlink.c:1352
 netlink_sendmsg+0x834/0xb18 net/netlink/af_netlink.c:1874
 sock_sendmsg_nosec net/socket.c:718 [inline]
 __sock_sendmsg net/socket.c:730 [inline]
 __sys_sendto+0x3b8/0x508 net/socket.c:2148
 __do_sys_sendto net/socket.c:2160 [inline]
 __se_sys_sendto net/socket.c:2156 [inline]
 __arm64_sys_sendto+0xd8/0xf8 net/socket.c:2156
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206
 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585

Second to last potentially related work creation:
 kasan_save_stack+0x40/0x70 mm/kasan/common.c:45
 __kasan_record_aux_stack+0xcc/0xe8 mm/kasan/generic.c:486
 kasan_record_aux_stack_noalloc+0x14/0x20 mm/kasan/generic.c:496
 call_rcu+0xfc/0xa40 kernel/rcu/tree.c:2844
 fib6_info_release include/net/ip6_fib.h:340 [inline]
 __ip6_del_rt+0xf8/0x178 net/ipv6/route.c:3872
 ip6_del_rt+0xdc/0x13c net/ipv6/route.c:3883
 __ipv6_ifa_notify+0x86c/0xf54 net/ipv6/addrconf.c:6213
 addrconf_ifdown+0xdc0/0x17a8 net/ipv6/addrconf.c:3905
 addrconf_notify+0x324/0xc94
 notifier_call_chain kernel/notifier.c:87 [inline]
 raw_notifier_call_chain+0xd4/0x164 kernel/notifier.c:455
 call_netdevice_notifiers_info net/core/dev.c:1970 [inline]
 call_netdevice_notifiers_extack net/core/dev.c:2008 [inline]
 call_netdevice_notifiers net/core/dev.c:2022 [inline]
 dev_close_many+0x2fc/0x468 net/core/dev.c:1570
 unregister_netdevice_many+0x3fc/0x175c net/core/dev.c:10856
 default_device_exit_batch+0x9f4/0xa70 net/core/dev.c:11395
 ops_exit_list net/core/net_namespace.c:177 [inline]
 cleanup_net+0x5dc/0x994 net/core/net_namespace.c:604
 process_one_work+0x7ac/0x1404 kernel/workqueue.c:2292
 worker_thread+0x8e4/0xfec kernel/workqueue.c:2439
 kthread+0x250/0x2d8 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:864

The buggy address belongs to the object at ffff0000ecf34800
 which belongs to the cache kmalloc-512 of size 512
The buggy address is located 320 bytes inside of
 512-byte region [ffff0000ecf34800, ffff0000ecf34a00)

The buggy address belongs to the physical page:
page:00000000a7dfd233 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x12cf34
head:00000000a7dfd233 order:2 compound_mapcount:0 compound_pincount:0
flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000010200 fffffc000343f800 dead000000000002 ffff0000c0002600
raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff0000ecf34800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff0000ecf34880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff0000ecf34900: 00 00 00 00 00 00 00 04 fc fc fc fc fc fc fc fc
                                           ^
 ffff0000ecf34980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff0000ecf34a00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================
================================================================================
UBSAN: array-index-out-of-bounds in net/wireless/scan.c:2749:8
index 33 is out of range for type 'struct iw_freq[32]'
CPU: 1 PID: 5978 Comm: syz.2.460 Tainted: G    B              6.1.94-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Call trace:
 dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106
 dump_stack+0x1c/0x5c lib/dump_stack.c:113
 ubsan_epilogue lib/ubsan.c:151 [inline]
 __ubsan_handle_out_of_bounds+0xfc/0x148 lib/ubsan.c:282
 cfg80211_wext_siwscan+0x4a0/0xee8 net/wireless/scan.c:2749
 ioctl_standard_iw_point+0x7f0/0xdc4 net/wireless/wext-core.c:848
 ioctl_standard_call+0xcc/0x264 net/wireless/wext-core.c:1033
 wext_ioctl_dispatch+0x16c/0x3ec net/wireless/wext-core.c:997
 wext_handle_ioctl+0x1f8/0x3f4 net/wireless/wext-core.c:1058
 sock_ioctl+0x140/0x858 net/socket.c:1255
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl fs/ioctl.c:856 [inline]
 __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:856
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206
 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585