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BUG: KASAN: slab-out-of-bounds in udf_write_aext+0x578/0x668 fs/udf/inode.c:2099
Write of size 4 at addr ffff0000ea91d3f8 by task syz.2.2423/11567

CPU: 1 PID: 11567 Comm: syz.2.2423 Not tainted 6.1.106-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
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_store_n_noabort+0x28/0x34 mm/kasan/report_generic.c:367
 udf_write_aext+0x578/0x668 fs/udf/inode.c:2099
 udf_add_entry+0x11e0/0x28b0 fs/udf/namei.c:482
 udf_mkdir+0x158/0x7e0 fs/udf/namei.c:681
 vfs_mkdir+0x334/0x4e4 fs/namei.c:4108
 do_mkdirat+0x220/0x510 fs/namei.c:4133
 __do_sys_mkdirat fs/namei.c:4148 [inline]
 __se_sys_mkdirat fs/namei.c:4146 [inline]
 __arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4146
 __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:140
 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:204
 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 6814:
 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_node_track_caller+0xd0/0x1c0 mm/slab_common.c:975
 kmalloc_reserve net/core/skbuff.c:446 [inline]
 __alloc_skb+0x180/0x580 net/core/skbuff.c:515
 skb_copy+0x10c/0x6c8 net/core/skbuff.c:1732
 mac80211_hwsim_tx_frame_no_nl+0xdf0/0x1638 drivers/net/wireless/mac80211_hwsim.c:1724
 mac80211_hwsim_tx_frame+0x1c4/0x1f8 drivers/net/wireless/mac80211_hwsim.c:2053
 mac80211_hwsim_beacon_tx+0x500/0x94c drivers/net/wireless/mac80211_hwsim.c:2116
 __iterate_interfaces+0x204/0x484 net/mac80211/util.c:788
 ieee80211_iterate_active_interfaces_atomic+0xd4/0x180 net/mac80211/util.c:824
 mac80211_hwsim_beacon+0xcc/0x1c8 drivers/net/wireless/mac80211_hwsim.c:2142
 __run_hrtimer kernel/time/hrtimer.c:1686 [inline]
 __hrtimer_run_queues+0x4b0/0xdc0 kernel/time/hrtimer.c:1750
 hrtimer_run_softirq+0x158/0x21c kernel/time/hrtimer.c:1767
 handle_softirqs+0x318/0xd58 kernel/softirq.c:571
 __do_softirq+0x14/0x20 kernel/softirq.c:605

The buggy address belongs to the object at ffff0000ea91d000
 which belongs to the cache kmalloc-512 of size 512
The buggy address is located 504 bytes to the right of
 512-byte region [ffff0000ea91d000, ffff0000ea91d200)

The buggy address belongs to the physical page:
page:000000000cc84b0d refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x12a91c
head:000000000cc84b0d order:2 compound_mapcount:0 compound_pincount:0
flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000010200 dead000000000100 dead000000000122 ffff0000c0002600
raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff0000ea91d280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff0000ea91d300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff0000ea91d380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                                                                ^
 ffff0000ea91d400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff0000ea91d480: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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