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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2021-09-27 16:07:08 -0300 |
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| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2022-01-12 10:30:10 -0300 |
| commit | 21e0f45c7d73df6fe30c77ffcc9f81410e2ee369 (patch) | |
| tree | 32f861c62693a518a37113b2023543705cdc029d /string | |
| parent | a4cf12360fb7a8eae4fa4923763309b7f10797c3 (diff) | |
| download | glibc-21e0f45c7d73df6fe30c77ffcc9f81410e2ee369.tar.gz glibc-21e0f45c7d73df6fe30c77ffcc9f81410e2ee369.tar.xz glibc-21e0f45c7d73df6fe30c77ffcc9f81410e2ee369.zip | |
linux: Fix ancillary 64-bit time timestamp conversion (BZ #28349, BZ #28350)
The __convert_scm_timestamps() only updates the control message last pointer for SOL_SOCKET type, so if the message control buffer contains multiple ancillary message types the converted timestamp one might overwrite a valid message. The test check if the extra ancillary space is correctly handled by recvmsg/recvmmsg, where if there is no extra space for the 64-bit time_t converted message the control buffer should be marked with MSG_TRUNC. It also check if recvmsg/recvmmsg handle correctly multiple ancillary data. Checked on x86_64-linux and on i686-linux-gnu on both 5.11 and 4.15 kernel. Co-authored-by: Fabian Vogt <fvogt@suse.de>
Diffstat (limited to 'string')
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