syz.3.1311: attempt to access beyond end of device loop3: rw=0, sector=34, nr_sectors = 1 limit=0 FAT-fs (loop3): unable to read inode block for updating (i_pos 548) ===================================================== BUG: KMSAN: uninit-value in vfat_rename fs/fat/namei_vfat.c:1038 [inline] BUG: KMSAN: uninit-value in vfat_rename2+0x3dda/0x3de0 fs/fat/namei_vfat.c:1174 vfat_rename fs/fat/namei_vfat.c:1038 [inline] vfat_rename2+0x3dda/0x3de0 fs/fat/namei_vfat.c:1174 vfs_rename+0x1d9d/0x2280 fs/namei.c:5013 do_renameat2+0x18cc/0x1d50 fs/namei.c:5170 __do_sys_rename fs/namei.c:5217 [inline] __se_sys_rename fs/namei.c:5215 [inline] __x64_sys_rename+0xe8/0x140 fs/namei.c:5215 x64_sys_call+0x1e4d/0x3ba0 arch/x86/include/generated/asm/syscalls_64.h:83 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Local variable sinfo.i created at: vfat_rename fs/fat/namei_vfat.c:937 [inline] vfat_rename2+0x124/0x3de0 fs/fat/namei_vfat.c:1174 vfs_rename+0x1d9d/0x2280 fs/namei.c:5013 CPU: 1 UID: 0 PID: 11864 Comm: syz.3.1311 Not tainted 6.11.0-syzkaller-12113-ge7ed34365879 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 =====================================================