UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000)
==================================================================
BUG: KASAN: slab-out-of-bounds in udf_write_aext+0x6e3/0x7d0 fs/udf/inode.c:2076
netlink: 68 bytes leftover after parsing attributes in process `syz-executor.4'.
Write of size 4 at addr ffff888093f71c70 by task syz-executor.2/10164

CPU: 1 PID: 10164 Comm: syz-executor.2 Not tainted 4.14.302-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x1b2/0x281 lib/dump_stack.c:58
 print_address_description.cold+0x54/0x1d3 mm/kasan/report.c:252
 kasan_report_error.cold+0x8a/0x191 mm/kasan/report.c:351
 kasan_report mm/kasan/report.c:409 [inline]
 __asan_report_store_n_noabort+0x6b/0x80 mm/kasan/report.c:446
 udf_write_aext+0x6e3/0x7d0 fs/udf/inode.c:2076
 udf_add_entry+0xc54/0x2710 fs/udf/namei.c:501
 udf_mkdir+0x122/0x620 fs/udf/namei.c:699
 vfs_mkdir+0x463/0x6e0 fs/namei.c:3851
 SYSC_mkdirat fs/namei.c:3874 [inline]
 SyS_mkdirat+0x1fd/0x270 fs/namei.c:3858
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7fd8e85720a9
RSP: 002b:00007fd8e6ae4168 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007fd8e8691f80 RCX: 00007fd8e85720a9
RDX: 0000000000000000 RSI: 0000000020000200 RDI: 0000000000000005
RBP: 00007fd8e85cdae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff1a94633f R14: 00007fd8e6ae4300 R15: 0000000000022000

Allocated by task 0:
 save_stack mm/kasan/kasan.c:447 [inline]
 set_track mm/kasan/kasan.c:459 [inline]
 kasan_kmalloc+0xeb/0x160 mm/kasan/kasan.c:551
 __do_kmalloc_node mm/slab.c:3682 [inline]
 __kmalloc_node_track_caller+0x4c/0x70 mm/slab.c:3696
 __kmalloc_reserve net/core/skbuff.c:137 [inline]
 __alloc_skb+0x96/0x510 net/core/skbuff.c:205
 __napi_alloc_skb+0x57/0x2d0 net/core/skbuff.c:478
 napi_alloc_skb include/linux/skbuff.h:2721 [inline]
 page_to_skb+0x7b/0x820 drivers/net/virtio_net.c:323
 receive_mergeable drivers/net/virtio_net.c:723 [inline]
 receive_buf+0x1f71/0x4d70 drivers/net/virtio_net.c:828
 virtnet_receive drivers/net/virtio_net.c:1102 [inline]
 virtnet_poll+0x4b7/0x960 drivers/net/virtio_net.c:1193
 napi_poll net/core/dev.c:5604 [inline]
 net_rx_action+0x466/0xfd0 net/core/dev.c:5670
 __do_softirq+0x24d/0x9ff kernel/softirq.c:288

Freed by task 7974:
 save_stack mm/kasan/kasan.c:447 [inline]
 set_track mm/kasan/kasan.c:459 [inline]
 kasan_slab_free+0xc3/0x1a0 mm/kasan/kasan.c:524
 __cache_free mm/slab.c:3496 [inline]
 kfree+0xc9/0x250 mm/slab.c:3815
 skb_free_head net/core/skbuff.c:563 [inline]
 skb_release_data+0x5f6/0x820 net/core/skbuff.c:583
 skb_release_all net/core/skbuff.c:640 [inline]
 __kfree_skb net/core/skbuff.c:654 [inline]
 kfree_skb_partial+0x75/0x90 net/core/skbuff.c:4832
 tcp_rcv_established+0x1650/0x1a50 net/ipv4/tcp_input.c:5576
 tcp_v4_do_rcv+0x675/0x800 net/ipv4/tcp_ipv4.c:1492
 sk_backlog_rcv include/net/sock.h:923 [inline]
 __release_sock+0x12a/0x350 net/core/sock.c:2284
 release_sock+0x54/0x1b0 net/core/sock.c:2822
 tcp_recvmsg+0x66d/0x1d50 net/ipv4/tcp.c:2015
 inet_recvmsg+0xef/0x4d0 net/ipv4/af_inet.c:793
 sock_recvmsg_nosec net/socket.c:819 [inline]
 sock_recvmsg net/socket.c:826 [inline]
 sock_recvmsg net/socket.c:822 [inline]
 sock_read_iter+0x2be/0x3f0 net/socket.c:903
 call_read_iter include/linux/fs.h:1774 [inline]
 new_sync_read fs/read_write.c:401 [inline]
 __vfs_read+0x449/0x620 fs/read_write.c:413
 vfs_read+0x139/0x340 fs/read_write.c:447
 SYSC_read fs/read_write.c:574 [inline]
 SyS_read+0xf2/0x210 fs/read_write.c:567
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3

The buggy address belongs to the object at ffff888093f71a00
 which belongs to the cache kmalloc-512 of size 512
The buggy address is located 112 bytes to the right of
 512-byte region [ffff888093f71a00, ffff888093f71c00)
The buggy address belongs to the page:
page:ffffea00024fdc40 count:1 mapcount:0 mapping:ffff888093f71000 index:0xffff888093f71780
flags: 0xfff00000000100(slab)
raw: 00fff00000000100 ffff888093f71000 ffff888093f71780 0000000100000001
raw: ffffea0002bff4a0 ffffea0002bda360 ffff88813fe74940 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff888093f71b00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888093f71b80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff888093f71c00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                                                             ^
 ffff888093f71c80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff888093f71d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================
ntfs: volume version 3.1.