tipc: Resetting bearer tipc: Resetting bearer tipc: Resetting bearer ================================================================== BUG: KASAN: slab-out-of-bounds in ieee80211_add_virtual_monitor+0xa52/0xd00 net/mac80211/iface.c:1247 Read of size 1 at addr ffff88806a8ffd50 by task syz.5.4816/24030 CPU: 1 UID: 0 PID: 24030 Comm: syz.5.4816 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:378 [inline] print_report+0xca/0x240 mm/kasan/report.c:482 kasan_report+0x118/0x150 mm/kasan/report.c:595 ieee80211_add_virtual_monitor+0xa52/0xd00 net/mac80211/iface.c:1247 ieee80211_do_stop+0x1786/0x1f60 net/mac80211/iface.c:738 ieee80211_stop+0x1b1/0x240 net/mac80211/iface.c:820 __dev_close_many+0x364/0x6f0 net/core/dev.c:1756 netif_close_many+0x225/0x410 net/core/dev.c:1781 netif_close+0x158/0x210 net/core/dev.c:1798 dev_close+0x10a/0x220 net/core/dev_api.c:220 cfg80211_shutdown_all_interfaces+0xd4/0x220 net/wireless/core.c:280 cfg80211_rfkill_set_block+0x2d/0x50 net/wireless/core.c:310 rfkill_set_block+0x1d2/0x440 net/rfkill/core.c:346 rfkill_fop_write+0x44b/0x570 net/rfkill/core.c:1301 vfs_write+0x27e/0xb30 fs/read_write.c:684 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f2fd418f6c9 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:00007f2fd4f6e038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f2fd43e5fa0 RCX: 00007f2fd418f6c9 RDX: 0000000000000008 RSI: 0000200000000080 RDI: 000000000000000c RBP: 00007f2fd4211f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f2fd43e6038 R14: 00007f2fd43e5fa0 R15: 00007ffc099963f8 The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88806a8ffa80 pfn:0x6a8fc head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff) page_type: f8(unknown) raw: 00fff00000000040 0000000000000000 dead000000000122 0000000000000000 raw: ffff88806a8ffa80 0000000000000000 00000000f8000000 0000000000000000 head: 00fff00000000040 0000000000000000 dead000000000122 0000000000000000 head: ffff88806a8ffa80 0000000000000000 00000000f8000000 0000000000000000 head: 00fff00000000002 ffffea0001aa3f01 00000000ffffffff 00000000ffffffff head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 2, migratetype Unmovable, gfp_mask 0x446dc0(GFP_KERNEL_ACCOUNT|__GFP_ZERO|__GFP_NOWARN|__GFP_RETRY_MAYFAIL|__GFP_COMP), pid 18201, tgid 18201 (syz-executor), ts 402634827290, free_ts 402591961976 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x240/0x2a0 mm/page_alloc.c:1850 prep_new_page mm/page_alloc.c:1858 [inline] get_page_from_freelist+0x2365/0x2440 mm/page_alloc.c:3884 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:5183 alloc_pages_mpol+0x232/0x4a0 mm/mempolicy.c:2416 ___kmalloc_large_node+0x5f/0x1b0 mm/slub.c:5583 __kmalloc_large_node_noprof+0x18/0x90 mm/slub.c:5614 __do_kmalloc_node mm/slub.c:5630 [inline] __kvmalloc_node_noprof+0x6e/0x910 mm/slub.c:7100 alloc_netdev_mqs+0xa6/0x11b0 net/core/dev.c:11989 ieee80211_if_add+0x46c/0x1390 net/mac80211/iface.c:2219 ieee80211_register_hw+0x35a5/0x40d0 net/mac80211/main.c:1607 mac80211_hwsim_new_radio+0x2f9a/0x5260 drivers/net/wireless/virtual/mac80211_hwsim.c:5804 hwsim_new_radio_nl+0xf5b/0x1bd0 drivers/net/wireless/virtual/mac80211_hwsim.c:6498 genl_family_rcv_msg_doit+0x215/0x300 net/netlink/genetlink.c:1115 genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline] genl_rcv_msg+0x60e/0x790 net/netlink/genetlink.c:1210 netlink_rcv_skb+0x208/0x470 net/netlink/af_netlink.c:2550 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219 page last free pid 18426 tgid 18425 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1394 [inline] __free_frozen_pages+0xbc4/0xd30 mm/page_alloc.c:2906 discard_slab mm/slub.c:3326 [inline] __put_partials+0x146/0x170 mm/slub.c:3872 put_cpu_partial+0x1f2/0x2e0 mm/slub.c:3947 __slab_free+0x2b9/0x390 mm/slub.c:5921 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x97/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:352 kasan_slab_alloc include/linux/kasan.h:252 [inline] slab_post_alloc_hook mm/slub.c:4970 [inline] slab_alloc_node mm/slub.c:5280 [inline] kmem_cache_alloc_node_noprof+0x433/0x710 mm/slub.c:5332 __alloc_skb+0x112/0x2d0 net/core/skbuff.c:664 alloc_skb include/linux/skbuff.h:1383 [inline] nlmsg_new include/net/netlink.h:1055 [inline] netlink_ack+0x146/0xa50 net/netlink/af_netlink.c:2487 netlink_rcv_skb+0x28c/0x470 net/netlink/af_netlink.c:2556 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x82f/0x9e0 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1894 sock_sendmsg_nosec net/socket.c:727 [inline] __sock_sendmsg+0x21c/0x270 net/socket.c:742 ____sys_sendmsg+0x505/0x830 net/socket.c:2630 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2684 Memory state around the buggy address: ffff88806a8ffc00: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe ffff88806a8ffc80: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe >ffff88806a8ffd00: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe ^ ffff88806a8ffd80: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe ffff88806a8ffe00: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe ==================================================================