loop0: detected capacity change from 0 to 2048 UDF-fs: INFO Mounting volume 'LiuxUDF', timestamp 2022/11/22 14:59 (1000) ================================================================== BUG: KASAN: slab-out-of-bounds in udf_write_aext+0x6a7/0x7a0 fs/udf/inode.c:2099 Write of size 4 at addr ffff888059f67ff8 by task syz.0.638/5649 CPU: 0 PID: 5649 Comm: syz.0.638 Not tainted 6.1.105-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106 print_address_description mm/kasan/report.c:284 [inline] print_report+0x15f/0x4f0 mm/kasan/report.c:395 kasan_report+0x136/0x160 mm/kasan/report.c:495 udf_write_aext+0x6a7/0x7a0 fs/udf/inode.c:2099 udf_add_entry+0x17b7/0x3350 fs/udf/namei.c:482 udf_mkdir+0x1a8/0xaa0 fs/udf/namei.c:681 vfs_mkdir+0x3b6/0x590 fs/namei.c:4108 do_mkdirat+0x225/0x360 fs/namei.c:4133 __do_sys_mkdirat fs/namei.c:4148 [inline] __se_sys_mkdirat fs/namei.c:4146 [inline] __x64_sys_mkdirat+0x85/0x90 fs/namei.c:4146 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7fc786378257 Code: 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 02 01 00 00 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:00007fc78713fe68 EFLAGS: 00000246 ORIG_RAX: 0000000000000102 RAX: ffffffffffffffda RBX: 00007fc78713fef0 RCX: 00007fc786378257 RDX: 00000000000001ff RSI: 0000000020000100 RDI: 00000000ffffff9c RBP: 0000000000000000 R08: 0000000020000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000100 R13: 00007fc78713feb0 R14: 0000000000000000 R15: 0000000000000000 Allocated by task 3639: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:52 ____kasan_kmalloc mm/kasan/common.c:374 [inline] __kasan_kmalloc+0x97/0xb0 mm/kasan/common.c:383 kasan_kmalloc include/linux/kasan.h:211 [inline] __do_kmalloc_node mm/slab_common.c:955 [inline] __kmalloc+0xb2/0x230 mm/slab_common.c:968 kmalloc include/linux/slab.h:561 [inline] kzalloc include/linux/slab.h:692 [inline] tnode_alloc net/ipv4/fib_trie.c:332 [inline] tnode_new+0xcd/0x340 net/ipv4/fib_trie.c:385 inflate net/ipv4/fib_trie.c:545 [inline] resize+0x3f4/0x2730 net/ipv4/fib_trie.c:869 trie_rebalance net/ipv4/fib_trie.c:1106 [inline] fib_insert_node net/ipv4/fib_trie.c:1150 [inline] fib_insert_alias+0xd2b/0x1280 net/ipv4/fib_trie.c:1164 fib_table_insert+0x7fb/0x1f20 net/ipv4/fib_trie.c:1378 fib_magic net/ipv4/fib_frontend.c:1104 [inline] fib_add_ifaddr+0x47f/0x1730 net/ipv4/fib_frontend.c:1126 fib_inetaddr_event+0x12b/0x2b0 net/ipv4/fib_frontend.c:1440 notifier_call_chain kernel/notifier.c:87 [inline] blocking_notifier_call_chain+0x104/0x1b0 kernel/notifier.c:382 __inet_insert_ifa+0x9cb/0xbd0 net/ipv4/devinet.c:554 inet_rtm_newaddr+0x8d3/0x18e0 net/ipv4/devinet.c:960 rtnetlink_rcv_msg+0x818/0xff0 net/core/rtnetlink.c:6121 netlink_rcv_skb+0x1cd/0x410 net/netlink/af_netlink.c:2508 netlink_unicast_kernel net/netlink/af_netlink.c:1326 [inline] netlink_unicast+0x7d8/0x970 net/netlink/af_netlink.c:1352 netlink_sendmsg+0xa26/0xd60 net/netlink/af_netlink.c:1874 sock_sendmsg_nosec net/socket.c:718 [inline] __sock_sendmsg net/socket.c:730 [inline] __sys_sendto+0x480/0x600 net/socket.c:2148 __do_sys_sendto net/socket.c:2160 [inline] __se_sys_sendto net/socket.c:2156 [inline] __x64_sys_sendto+0xda/0xf0 net/socket.c:2156 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 The buggy address belongs to the object at ffff888059f67c00 which belongs to the cache kmalloc-512 of size 512 The buggy address is located 504 bytes to the right of 512-byte region [ffff888059f67c00, ffff888059f67e00) The buggy address belongs to the physical page: page:ffffea000167d900 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x59f64 head:ffffea000167d900 order:2 compound_mapcount:0 compound_pincount:0 flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000010200 ffffea00016aff00 dead000000000002 ffff888012841c80 raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 3686, tgid 3686 (kworker/0:6), ts 64372140876, free_ts 16688390608 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x18d/0x1b0 mm/page_alloc.c:2517 prep_new_page mm/page_alloc.c:2524 [inline] get_page_from_freelist+0x322e/0x33b0 mm/page_alloc.c:4290 __alloc_pages+0x28d/0x770 mm/page_alloc.c:5558 alloc_slab_page+0x6a/0x150 mm/slub.c:1794 allocate_slab mm/slub.c:1939 [inline] new_slab+0x84/0x2d0 mm/slub.c:1992 ___slab_alloc+0xc20/0x1270 mm/slub.c:3180 __slab_alloc mm/slub.c:3279 [inline] slab_alloc_node mm/slub.c:3364 [inline] __kmem_cache_alloc_node+0x19f/0x260 mm/slub.c:3437 kmalloc_trace+0x26/0xe0 mm/slab_common.c:1045 kmalloc include/linux/slab.h:556 [inline] kzalloc include/linux/slab.h:692 [inline] mca_alloc net/ipv6/mcast.c:880 [inline] __ipv6_dev_mc_inc+0x426/0xa80 net/ipv6/mcast.c:936 addrconf_join_solict net/ipv6/addrconf.c:2198 [inline] addrconf_dad_begin net/ipv6/addrconf.c:4023 [inline] addrconf_dad_work+0x420/0x16b0 net/ipv6/addrconf.c:4148 process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292 worker_thread+0xa47/0x1200 kernel/workqueue.c:2439 kthread+0x28d/0x320 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1444 [inline] free_pcp_prepare mm/page_alloc.c:1494 [inline] free_unref_page_prepare+0xf63/0x1120 mm/page_alloc.c:3369 free_unref_page+0x33/0x3e0 mm/page_alloc.c:3464 free_contig_range+0x9a/0x150 mm/page_alloc.c:9518 destroy_args+0xfe/0x997 mm/debug_vm_pgtable.c:1031 debug_vm_pgtable+0x416/0x46b mm/debug_vm_pgtable.c:1354 do_one_initcall+0x265/0x8f0 init/main.c:1298 do_initcall_level+0x157/0x207 init/main.c:1371 do_initcalls+0x49/0x86 init/main.c:1387 kernel_init_freeable+0x45c/0x60f init/main.c:1626 kernel_init+0x19/0x290 init/main.c:1514 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Memory state around the buggy address: ffff888059f67e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff888059f67f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff888059f67f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff888059f68000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff888059f68080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 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