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Jan 18 2023

zhengxiaoxiaoGithub added a comment to T6349: need to add the judgment of invalid handles in _gcry_md_ctl？.

core.txt2 KBDownload

Jan 18 2023, 11:10 AM · libgcrypt
zhengxiaoxiaoGithub created T6349: need to add the judgment of invalid handles in _gcry_md_ctl？.
Jan 18 2023, 11:09 AM · libgcrypt

Dec 16 2022

zhengxiaoxiaoGithub added a comment to T6311: A core dump occurs in the _gcry_mpi_normalize function.

Thank you for your reply! I'll modify my testcase

Dec 16 2022, 7:55 AM · libgcrypt

Dec 15 2022

zhengxiaoxiaoGithub added a comment to T6311: A core dump occurs in the _gcry_mpi_normalize function.

When I look at the stack information, I find that because E->p is not assigned in the function mpi_ec_get_elliptic_curve(), this produces a null pointer，but it didn't get to the branch : if (errc) goto leave;

Dec 15 2022, 10:21 AM · libgcrypt
zhengxiaoxiaoGithub added a comment to T6311: A core dump occurs in the _gcry_mpi_normalize function.

I tried to fix the segmentation fault, so I added a null pointer check at the end to protect it.

0001-add-the-null-pointer-judgment.patch665 BDownload

Dec 15 2022, 8:46 AM · libgcrypt

Dec 14 2022

zhengxiaoxiaoGithub created T6311: A core dump occurs in the _gcry_mpi_normalize function.
Dec 14 2022, 2:11 PM · libgcrypt