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backport patches to fix possible NULL dereference
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#ICL0IV
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zhangyaqi
Opened this issue
2025-07-09 13:36
Static analyzer (Svace) reported a possible null pointer dereference in fec_mode_walk(), where the 'name' pointer is passed to print_string() without checking for NULL. Although some callers check the return value of get_string(), others (e.g., walk_bitset()) do not. This patch adds an early NULL check to avoid dereferencing a null pointer. This resolves: DEREF_OF_NULL.EX.COND: json_print.c:142 via fec.c Found by Svace static analysis tool. Reference：https://git.kernel.org/pub/scm/network/ethtool/ethtool.git/patch/?id=f111e854d99e3284893ef59efcfb6e5a5857d396 Reference：https://git.kernel.org/pub/scm/network/ethtool/ethtool.git/patch/?id=33fffbbdc12d71b3bb23acd04b97ce1b485f3c60
Static analyzer (Svace) reported a possible null pointer dereference in fec_mode_walk(), where the 'name' pointer is passed to print_string() without checking for NULL. Although some callers check the return value of get_string(), others (e.g., walk_bitset()) do not. This patch adds an early NULL check to avoid dereferencing a null pointer. This resolves: DEREF_OF_NULL.EX.COND: json_print.c:142 via fec.c Found by Svace static analysis tool. Reference：https://git.kernel.org/pub/scm/network/ethtool/ethtool.git/patch/?id=f111e854d99e3284893ef59efcfb6e5a5857d396 Reference：https://git.kernel.org/pub/scm/network/ethtool/ethtool.git/patch/?id=33fffbbdc12d71b3bb23acd04b97ce1b485f3c60
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