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BUG: KASAN: slab-out-of-bounds in udf_write_aext+0x780/0x860 fs/udf/inode.c:2065
Write of size 4 at addr ffff8880a65267f0 by task syz-executor.3/28041

CPU: 0 PID: 28041 Comm: syz-executor.3 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 print_address_description.cold+0x54/0x219 mm/kasan/report.c:256
 kasan_report_error.cold+0x8a/0x1b9 mm/kasan/report.c:354
 kasan_report mm/kasan/report.c:412 [inline]
 __asan_report_store_n_noabort+0x8b/0xa0 mm/kasan/report.c:449
 udf_write_aext+0x780/0x860 fs/udf/inode.c:2065
 udf_add_entry+0xdab/0x2a20 fs/udf/namei.c:496
 udf_mkdir+0x145/0x650 fs/udf/namei.c:693
 vfs_mkdir+0x508/0x7a0 fs/namei.c:3819
 do_mkdirat+0x262/0x2d0 fs/namei.c:3842
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f9f7f74c5a9
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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f9f7e0bf168 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
RAX: ffffffffffffffda RBX: 00007f9f7f86cf80 RCX: 00007f9f7f74c5a9
RDX: 0000000000000000 RSI: 000000000000011a RDI: 0000000020000a40
RBP: 00007f9f7f7a7580 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe88b46fbf R14: 00007f9f7e0bf300 R15: 0000000000022000

Allocated by task 26653:
 __do_kmalloc_node mm/slab.c:3689 [inline]
 __kmalloc_node_track_caller+0x4c/0x70 mm/slab.c:3703
 __kmalloc_reserve net/core/skbuff.c:137 [inline]
 __alloc_skb+0xae/0x560 net/core/skbuff.c:205
 skb_copy+0x139/0x2f0 net/core/skbuff.c:1358
 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb8a/0x1330 drivers/net/wireless/mac80211_hwsim.c:1353
 mac80211_hwsim_tx_frame+0x12b/0x210 drivers/net/wireless/mac80211_hwsim.c:1556
 mac80211_hwsim_beacon_tx+0x3f8/0x680 drivers/net/wireless/mac80211_hwsim.c:1595
 __iterate_interfaces+0x2e1/0x4a0 net/mac80211/util.c:614
 ieee80211_iterate_active_interfaces_atomic+0x8d/0x170 net/mac80211/util.c:650
 mac80211_hwsim_beacon+0xc9/0x190 drivers/net/wireless/mac80211_hwsim.c:1615
 __tasklet_hrtimer_trampoline+0x29/0xa0 kernel/softirq.c:601
 tasklet_action_common.constprop.0+0x265/0x360 kernel/softirq.c:522
 __do_softirq+0x265/0x980 kernel/softirq.c:292

Freed by task 10374:
 __cache_free mm/slab.c:3503 [inline]
 kfree+0xcc/0x210 mm/slab.c:3822
 skb_free_head net/core/skbuff.c:563 [inline]
 skb_release_data+0x6de/0x920 net/core/skbuff.c:583
 skb_release_all net/core/skbuff.c:640 [inline]
 __kfree_skb net/core/skbuff.c:654 [inline]
 kfree_skb+0x11a/0x3d0 net/core/skbuff.c:672
 ieee80211_iface_work+0x289/0x8a0 net/mac80211/iface.c:1353
audit: type=1804 audit(1666251583.378:20698): pid=28053 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.3" name=2F726F6F742F73797A6B616C6C65722D74657374646972323835383930393936322F73797A6B616C6C65722E5859626B334A2F3533372F66696C65302FEE9FFF4778500CFFE3 dev="loop3" ino=1817 res=1
 process_one_work+0x864/0x1570 kernel/workqueue.c:2153
 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296
 kthread+0x33f/0x460 kernel/kthread.c:259
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415

The buggy address belongs to the object at ffff8880a6526580
 which belongs to the cache kmalloc-512 of size 512
The buggy address is located 112 bytes to the right of
 512-byte region [ffff8880a6526580, ffff8880a6526780)
The buggy address belongs to the page:
page:ffffea0002994980 count:1 mapcount:0 mapping:ffff88813bff0940 index:0xffff8880a6526d00
flags: 0xfff00000000100(slab)
raw: 00fff00000000100 ffffea0002920048 ffffea0002cc4848 ffff88813bff0940
raw: ffff8880a6526d00 ffff8880a6526080 0000000100000005 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8880a6526680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8880a6526700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff8880a6526780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                                                             ^
 ffff8880a6526800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff8880a6526880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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