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UBSAN: array-index-out-of-bounds in fs/jfs/jfs_xtree.c:622:15
index 19 is out of range for type 'xad_t [18]'
CPU: 1 PID: 5038 Comm: syz-executor147 Not tainted 6.5.0-rc3-next-20230727-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x125/0x1b0 lib/dump_stack.c:106
 ubsan_epilogue lib/ubsan.c:217 [inline]
 __ubsan_handle_out_of_bounds+0x111/0x150 lib/ubsan.c:348
 xtInsert+0xe82/0xef0 fs/jfs/jfs_xtree.c:622
 extAlloc+0x817/0xed0 fs/jfs/jfs_extent.c:145
 jfs_get_block+0x428/0xb20 fs/jfs/inode.c:248
 __block_write_begin_int+0x3c0/0x1470 fs/buffer.c:2113
 __block_write_begin fs/buffer.c:2163 [inline]
 block_write_begin+0xb1/0x490 fs/buffer.c:2222
 jfs_write_begin+0x31/0xd0 fs/jfs/inode.c:299
 generic_perform_write+0x278/0x600 mm/filemap.c:3930
 __generic_file_write_iter+0x1f9/0x240 mm/filemap.c:4025
 generic_file_write_iter+0xe3/0x350 mm/filemap.c:4051
 call_write_iter include/linux/fs.h:1948 [inline]
 do_iter_readv_writev+0x21e/0x3c0 fs/read_write.c:735
 do_iter_write+0x17f/0x830 fs/read_write.c:860
 vfs_iter_write+0x7a/0xb0 fs/read_write.c:901
 iter_file_splice_write+0x698/0xbf0 fs/splice.c:738
 do_splice_from fs/splice.c:933 [inline]
 direct_splice_actor+0x118/0x180 fs/splice.c:1142
 splice_direct_to_actor+0x347/0xa30 fs/splice.c:1088
 do_splice_direct+0x1af/0x280 fs/splice.c:1194
 do_sendfile+0xb88/0x1390 fs/read_write.c:1254
 __do_sys_sendfile64 fs/read_write.c:1322 [inline]
 __se_sys_sendfile64 fs/read_write.c:1308 [inline]
 __x64_sys_sendfile64+0x1d6/0x220 fs/read_write.c:1308
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fa25a68c3e9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 17 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa253229218 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007fa25a719718 RCX: 00007fa25a68c3e9
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000007
RBP: 00007fa25a719710 R08: 0000000000000000 R09: 0000000000000000
R10: 0001000000201005 R11: 0000000000000246 R12: 00007fa25a6e5fcc
R13: 00007fa25a6e0060 R14: 00007fa25a6e0047 R15: 0031656c69662f2e
 </TASK>
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