CVE-2024-26818 Information

Description

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 %d\n\ mount_point type) == 2) | ^

Increase mount_point variable size to MAX_PATH+1 to avoid the overflow.

Reference

https://git.kernel.org/stable/c/8a585914c266dc044f53b5c83c170f79b45fcf9a https://git.kernel.org/stable/c/6bdd43f62ab3bb5a306af7f0ab857af45777f5a8 https://git.kernel.org/stable/c/30369084ac6e27479a347899e74f523e6ca29b89