FAT-fs (loop2): Unrecognized mount option "ÿÿÿÿ" or missing value audit: type=1800 audit(1673212835.521:200): pid=23538 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.2" name="bus" dev="sda1" ino=14644 res=0 ================================================================== BUG: KASAN: slab-out-of-bounds in udf_write_aext+0x780/0x860 fs/udf/inode.c:2065 Write of size 4 at addr ffff88809e4fa0b0 by task syz-executor.4/23536 CPU: 1 PID: 23536 Comm: syz-executor.4 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 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 audit: type=1800 audit(1673212835.531:201): pid=23538 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.2" name="bus" dev="sda1" ino=14644 res=0 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 audit: type=1800 audit(1673212835.531:202): pid=23538 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.2" name="bus" dev="sda1" ino=14644 res=0 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: 0033:0x7fa0589480c9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 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:00007fa056eba168 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 RAX: ffffffffffffffda RBX: 00007fa058a67f80 RCX: 00007fa0589480c9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000180 RBP: 00007fa0589a3ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcec368a4f R14: 00007fa056eba300 R15: 0000000000022000 Allocated by task 23536: __do_kmalloc mm/slab.c:3727 [inline] __kmalloc+0x15a/0x3c0 mm/slab.c:3736 kmalloc include/linux/slab.h:520 [inline] kzalloc include/linux/slab.h:709 [inline] udf_new_inode+0x220/0xf30 fs/udf/ialloc.c:75 udf_mkdir+0xa8/0x650 fs/udf/namei.c:686 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 Freed by task 8144: __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] consume_skb+0x113/0x3d0 net/core/skbuff.c:714 mac80211_hwsim_tx_frame+0x133/0x210 drivers/net/wireless/mac80211_hwsim.c:1557 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 The buggy address belongs to the object at ffff88809e4fa0c0 which belongs to the cache kmalloc-512 of size 512 The buggy address is located 16 bytes to the left of 512-byte region [ffff88809e4fa0c0, ffff88809e4fa2c0) The buggy address belongs to the page: page:ffffea0002793e80 count:1 mapcount:0 mapping:ffff88813bff0940 index:0xffff88809e4fad40 flags: 0xfff00000000100(slab) raw: 00fff00000000100 ffffea00027d8808 ffffea0002a60488 ffff88813bff0940 raw: ffff88809e4fad40 ffff88809e4fa0c0 0000000100000003 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff88809e4f9f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff88809e4fa000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff88809e4fa080: fc fc fc fc fc fc fc fc 00 00 00 00 00 00 00 00 ^ ffff88809e4fa100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff88809e4fa180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ================================================================== UDF-fs: warning (device loop1): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 512 failed REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal UDF-fs: warning (device loop1): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 1024 failed UDF-fs: warning (device loop1): udf_load_vrs: No VRS found REISERFS (device loop5): using ordered data mode UDF-fs: Scanning with blocksize 2048 failed reiserfs: using flush barriers