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Fixed hanging of OpenSSL due to nested xioclose()

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This commit is contained in:
Gerhard Rieger 2024-06-23 20:47:12 +02:00
parent d16f1fe125
commit fdddba24b8
2 changed files with 12 additions and 2 deletions
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3
CHANGES
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@ -4,6 +4,9 @@ Corrections:
Thanks to Kush Upadhyay from Amazon Bottlerocket team for providing the Thanks to Kush Upadhyay from Amazon Bottlerocket team for providing the
patch. patch.
In some situations xioclose() was called nested what could cause hanging
of OpenSSL in pthread_rwlock_wrlock()
Features: Features:
Total inactivity timeout option -T 0 now means 0.0 seconds; up to Total inactivity timeout option -T 0 now means 0.0 seconds; up to
version 1.8.0.0 it meant no total inactivity timeout. version 1.8.0.0 it meant no total inactivity timeout.

11
xioclose.c
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@ -23,6 +23,11 @@ int xioclose1(struct single *pipe) {
return -1; return -1;
} }
if (pipe->tag == XIO_TAG_CLOSED) {
return 0;
}
pipe->tag |= XIO_TAG_CLOSED;
#if WITH_READLINE #if WITH_READLINE
if ((pipe->dtype & XIODATA_MASK) == XIODATA_READLINE) { if ((pipe->dtype & XIODATA_MASK) == XIODATA_READLINE) {
Write_history(pipe->para.readline.history_file); Write_history(pipe->para.readline.history_file);
@ -112,7 +117,6 @@ int xioclose1(struct single *pipe) {
free(pipe->unlink_close); free(pipe->unlink_close);
} }
pipe->tag |= XIO_TAG_CLOSED;
return 0; /*! */ return 0; /*! */
} }
@ -126,11 +130,14 @@ int xioclose(xiofile_t *file) {
errno = EINVAL; errno = EINVAL;
return -1; return -1;
} }
if (file->tag == XIO_TAG_CLOSED) {
return 0;
}
if (file->tag == XIO_TAG_DUAL) { if (file->tag == XIO_TAG_DUAL) {
file->tag |= XIO_TAG_CLOSED;
result = xioclose1(file->dual.stream[0]); result = xioclose1(file->dual.stream[0]);
result |= xioclose1(file->dual.stream[1]); result |= xioclose1(file->dual.stream[1]);
file->tag |= XIO_TAG_CLOSED;
} else { } else {
result = xioclose1(&file->stream); result = xioclose1(&file->stream);
} }