exFAT-fs (loop5): failed to load upcase table (idx : 0x00010000, chksum : 0x4f9d53fa, utbl_chksum : 0xe619d30d) ===================================================== BUG: KMSAN: uninit-value in exfat_set_entry_time+0x2dc/0x320 fs/exfat/misc.c:99 exfat_set_entry_time+0x2dc/0x320 fs/exfat/misc.c:99 __exfat_write_inode+0x7ca/0xdd0 fs/exfat/inode.c:59 exfat_write_inode+0xd9/0x180 fs/exfat/inode.c:97 write_inode fs/fs-writeback.c:1473 [inline] __writeback_single_inode+0x843/0x12b0 fs/fs-writeback.c:1690 writeback_single_inode+0x57b/0xb30 fs/fs-writeback.c:1746 write_inode_now+0x1f0/0x220 fs/fs-writeback.c:2788 exfat_cont_expand fs/exfat/file.c:38 [inline] exfat_setattr+0x1307/0x19f0 fs/exfat/file.c:257 notify_change+0x19fd/0x1af0 fs/attr.c:499 do_truncate+0x22a/0x2a0 fs/open.c:66 do_sys_ftruncate+0x81c/0xb30 fs/open.c:194 __do_compat_sys_ftruncate fs/open.c:211 [inline] __se_compat_sys_ftruncate fs/open.c:209 [inline] __ia32_compat_sys_ftruncate+0x70/0xa0 fs/open.c:209 do_syscall_32_irqs_on arch/x86/entry/common.c:164 [inline] __do_fast_syscall_32+0xa2/0x100 arch/x86/entry/common.c:230 do_fast_syscall_32+0x37/0x70 arch/x86/entry/common.c:255 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:293 entry_SYSENTER_compat_after_hwframe+0x70/0x7a Local variable ts created at: __exfat_write_inode+0x105/0xdd0 fs/exfat/inode.c:29 exfat_write_inode+0xd9/0x180 fs/exfat/inode.c:97 CPU: 1 PID: 6026 Comm: syz-executor.5 Not tainted 6.6.0-syzkaller-15365-g305230142ae0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 =====================================================