syz-executor.0 (pid 4890) is setting deprecated v1 encryption policy; recommend upgrading to v2. ================================================================== BUG: KASAN: use-after-free in ext4_xattr_set_entry+0x172/0x1ed6 fs/ext4/xattr.c:1593 Read of size 4 at addr ffffffe007fd2004 by task syz-executor.0/4890 CPU: 1 PID: 4890 Comm: syz-executor.0 Not tainted 5.15.0-rc1-syzkaller-00001-g64a19591a293 #0 Hardware name: riscv-virtio,qemu (DT) Call Trace: [] dump_backtrace+0x2e/0x3c arch/riscv/kernel/stacktrace.c:112 Allocated by task 2006: (stack is not available) The buggy address belongs to the object at ffffffe007fd2000 which belongs to the cache bio-200 of size 200 The buggy address is located 4 bytes inside of 200-byte region [ffffffe007fd2000, ffffffe007fd20c8) The buggy address belongs to the page: page:ffffffcf02207480 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffffffe007fd2780 pfn:0x881d2 flags: 0xffe000000000200(slab|node=0|zone=0|lastcpupid=0x7ff) raw: 0ffe000000000200 ffffffcf02364480 0000000500000005 ffffffe00570b640 raw: ffffffe007fd2780 00000000800c0000 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x92800(GFP_NOWAIT|__GFP_NOWARN|__GFP_NORETRY|__GFP_NOMEMALLOC), pid 1, ts 79117389900, free_ts 67060243300 page_owner allocation stack trace missing page_owner free stack trace missing Memory state around the buggy address: ffffffe007fd1f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffffffe007fd1f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffffffe007fd2000: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffffffe007fd2080: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc ffffffe007fd2100: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb ================================================================== EXT4-fs error (device vda): ext4_xattr_set_entry:1596: inode #640: comm syz-executor.0: corrupted xattr entries