Hello, syzbot found the following issue on: HEAD commit: 92514ef226f5 Merge tag 'for-6.14-rc1-tag' of git://git.ker.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=14761318580000 kernel config: https://syzkaller.appspot.com/x/.config?x=1909f2f0d8e641ce dashboard link: https://syzkaller.appspot.com/bug?extid=8ae0902c29b15a27a4ee compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=17df01b0580000 Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7feb34a89c2a/non_bootable_disk-92514ef2.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/c4d8b91f8769/vmlinux-92514ef2.xz kernel image: https://storage.googleapis.com/syzbot-assets/c24ec4365966/bzImage-92514ef2.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/2f20c9ca14a0/mount_2.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+8ae0902c29b15a27a4ee@xxxxxxxxxxxxxxxxxxxxxxxxx ------------[ cut here ]------------ UBSAN: shift-out-of-bounds in ./include/linux/xarray.h:1604:27 shift exponent 192 is too large for 64-bit type 'unsigned long' CPU: 0 UID: 0 PID: 5696 Comm: syz.4.33 Not tainted 6.14.0-rc1-syzkaller-00034-g92514ef226f5 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: <TASK> __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 ubsan_epilogue lib/ubsan.c:231 [inline] __ubsan_handle_shift_out_of_bounds+0x3c8/0x420 lib/ubsan.c:468 xas_reload+0x434/0x470 include/linux/xarray.h:1604 find_get_entry mm/filemap.c:2032 [inline] find_lock_entries+0x2d4/0xbb0 mm/filemap.c:2119 shmem_undo_range+0x2d4/0x1820 mm/shmem.c:1094 shmem_truncate_range mm/shmem.c:1224 [inline] shmem_evict_inode+0x29b/0xa80 mm/shmem.c:1352 evict+0x4e8/0x9a0 fs/inode.c:796 __dentry_kill+0x20d/0x630 fs/dcache.c:643 dput+0x19f/0x2b0 fs/dcache.c:885 __fput+0x60b/0x9f0 fs/file_table.c:456 __do_sys_close fs/open.c:1579 [inline] __se_sys_close fs/open.c:1564 [inline] __x64_sys_close+0x7f/0x110 fs/open.c:1564 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f4dd9f8ba4a Code: 48 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c 24 0c e8 43 91 02 00 8b 7c 24 0c 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 36 89 d7 89 44 24 0c e8 a3 91 02 00 8b 44 24 RSP: 002b:00007f4ddae87e00 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 00007f4dd9f8ba4a RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000005939 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000004 R13: 00007f4ddae87ef0 R14: 00007f4ddae87eb0 R15: 00007f4dd0c00000 </TASK> ---[ end trace ]--- --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
