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Vulnerability CVE-2024-26818
Published: 2024-04-17
| 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. |
References: |
https://git.kernel.org/stable/c/8a585914c266dc044f53b5c83c170f79b45fcf9a
https://git.kernel.org/stable/c/6bdd43f62ab3bb5a306af7f0ab857af45777f5a8
https://git.kernel.org/stable/c/30369084ac6e27479a347899e74f523e6ca29b89
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