=====================================================
BUG: KMSAN: uninit-value in check_pointer lib/vsprintf.c:705 [inline]
BUG: KMSAN: uninit-value in hex_string+0x4fd/0xa40 lib/vsprintf.c:1156
 check_pointer lib/vsprintf.c:705 [inline]
 hex_string+0x4fd/0xa40 lib/vsprintf.c:1156
 pointer+0x3ae/0x2060 lib/vsprintf.c:2407
 vsnprintf+0x1a9b/0x3650 lib/vsprintf.c:2809
 seq_vprintf fs/seq_file.c:391 [inline]
 seq_printf+0x314/0x4f0 fs/seq_file.c:406
 dev_mc_seq_show+0x2f5/0x450 net/core/net-procfs.c:335
 seq_read_iter+0xaac/0x2150 fs/seq_file.c:230
 seq_read+0x7a6/0x990 fs/seq_file.c:162
 pde_read fs/proc/inode.c:311 [inline]
 proc_reg_read+0x39d/0x560 fs/proc/inode.c:323
 do_iter_read+0xeb9/0x14c0 fs/read_write.c:788
 vfs_readv fs/read_write.c:906 [inline]
 do_preadv+0x45e/0x6c0 fs/read_write.c:998
 __do_sys_preadv fs/read_write.c:1048 [inline]
 __se_sys_preadv fs/read_write.c:1043 [inline]
 __x64_sys_preadv+0x120/0x170 fs/read_write.c:1043
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x54/0xd0 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x44/0xae

Local variable filename created at:
 process_measurement+0x1c5/0x38a0 security/integrity/ima/ima_main.c:209
 ima_file_check+0x131/0x170 security/integrity/ima/ima_main.c:516

CPU: 1 PID: 7668 Comm: syz-executor.2 Not tainted 5.16.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
=====================================================