In the Linux kernel, the following vulnerability has been resolved:
tools/rtla: Fix clang warning about mount_point var size
clang is reporting this warning:
$ make HOSTCC=clang CC=clang LLVM_IAS=1 […] clang -O -g -DVERSION=6.8.0-rc3 -flto=auto -fexceptions -fstack-protector-strong -fasynchronous-unwind-tables -fstack-clash-protection -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS $(pkg-config –cflags libtracefs) -c -o src/utils.o src/utils.c
src/utils.c:548:66: warning: fscanf may overflow; destination buffer in argument 3 has size 1024, but the corresponding specifier may require size 1025 [-Wfortify-source] 548 | while (fscanf(fp, %*s % STR(MAX_PATH) s %99s %*s %*d %*dn, mount_point, type) == 2) { | ^
Increase mount_point variable size to MAX_PATH+1 to avoid the overflow.