CVE-2024-36010

In the Linux kernel, the following vulnerability has been resolved:

igb: Fix string truncation warnings in igb_set_fw_version

Commit 1978d3ead82c (intel: fix string truncation warnings) fixes -Wformat-truncation= warnings in igb_main.c by using kasprintf.

drivers/net/ethernet/intel/igb/igb_main.c:3092:53: warning：‘%d’ directive output may be truncated writing between 1 and 5 bytes into a region of size between 1 and 13 [-Wformat-truncation=] 3092 | %d.%d, 0x%08x, %d.%d.%d, | ^~ drivers/net/ethernet/intel/igb/igb_main.c:3092:34: note：directive argument in the range [0, 65535] 3092 | %d.%d, 0x%08x, %d.%d.%d, | ^~~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/ethernet/intel/igb/igb_main.c:3092:34: note：directive argument in the range [0, 65535] drivers/net/ethernet/intel/igb/igb_main.c:3090:25: note：‘snprintf’ output between 23 and 43 bytes into a destination of size 32

kasprintf() returns a pointer to dynamically allocated memory which can be NULL upon failure.

Fix this warning by using a larger space for adapter->fw_version, and then fall back and continue to use snprintf.

Affected Software

References

• https://git.kernel.org/stable/c/c56d055893cbe97848611855d1c97d0ab171eccc