Control: tags -1 + upstream Hi,
thanks for your bug report. Would you mind raising this upstream at https://github.com/sctp/lksctp-tools/issues Thanks, Michael Am 28.11.25 um 15:51 schrieb Yves Legrandgérard:
Package: libsctp1 Version: 1.0.19+dfsg-2 Severity: normal File: /usr/lib/x86_64-linux-gnu/libsctp.so.1.0.19 X-Debbugs-Cc: [email protected] Dear Maintainer, -- Description: Problem concerns sctp_sendv() function when using SCTP_SENDV_SPA infotype. More precisely, let's consider the following program: +++++ #include <stddef.h> #include <string.h> #include <netinet/in.h> #include <netinet/sctp.h> #include <arpa/inet.h> int main(void) { int sock; struct sockaddr_in addr; struct sctp_sendv_spa spa; struct iovec iov = { .iov_base = "data", .iov_len = 4 };sock = socket(AF_INET, SOCK_STREAM, IPPROTO_SCTP);addr.sin_family = AF_INET; addr.sin_port = htons(20000); addr.sin_addr.s_addr = inet_addr("127.0.0.1"); connect(sock, (struct sockaddr *) &addr, sizeof(addr)); memset(&spa, 0, sizeof(spa)); spa.sendv_flags = SCTP_SEND_SNDINFO_VALID | SCTP_SEND_PRINFO_VALID | SCTP_SEND_AUTHINFO_VALID; sctp_sendv(sock, &iov, 1, NULL, 0, &spa, sizeof(spa), SCTP_SENDV_SPA, 0); return 0; } +++++ Compile this program: $ gcc -Wall e.c -o e -lsctp If you execute the program, a fatal error is raised: $ ./e ** stack smashing detected ***: terminated Important note: this error occurs ONLY if the 3 flags are present in field sendv_flags. If only one or two (no matter which flag(s)) are present in field sendv_flags, execution produces no error. Best regards, Yves Legrandgérard -- System Information: Debian Release: 12.12 APT prefers oldstable-security APT policy: (500, 'oldstable-security'), (500, 'oldstable') Architecture: amd64 (x86_64) Kernel: Linux 6.1.0-41-amd64 (SMP w/1 CPU thread; PREEMPT) Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8), LANGUAGE not set Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages libsctp1:amd64 depends on: ii libc6 2.36-9+deb12u13 libsctp1:amd64 recommends no packages. Versions of packages libsctp1:amd64 suggests: ii lksctp-tools 1.0.19+dfsg-2 -- no debconf information
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