gh-95041: Fix several minor issues in syslog.openlog()#95058
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* syslog_get_argv() swallows exceptions, but not in all cases. * if ident is non UTF-8 encodable, syslog.openlog() fails after setting the global reference to ident. Now the C string saved internally in the previous call to openlog() points to the freed memory. * PySys_Audit() can crash if ident is NULL. * There may be a race condition with syslog.syslog(), because the global reference to ident is decrefed before setting the new value.
serhiy-storchaka added type-bug 
* Possible use of freed memory if syslog.openlog() is called while the GIL is released in syslog.syslog().
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miss-islington commented Jul 26, 2022
Thanks @serhiy-storchaka for the PR 🌮🎉.. I'm working now to backport this PR to: 3.10, 3.11. |
miss-islington pushed a commit to miss-islington/cpython that referenced this pull request Jul 26, 2022
…H-95058) * syslog_get_argv() swallows exceptions, but not in all cases. * if ident is non UTF-8 encodable, syslog.openlog() fails after setting the global reference to ident. Now the C string saved internally in the previous call to openlog() points to the freed memory. * PySys_Audit() can crash if ident is NULL. * There may be a race condition with syslog.syslog(), because the global reference to ident is decrefed before setting the new value. * Possible use of freed memory if syslog.openlog() is called while the GIL is released in syslog.syslog(). (cherry picked from commit 68c555a) Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
bedevere-bot commented Jul 26, 2022
GH-95261 is a backport of this pull request to the 3.11 branch. |
miss-islington pushed a commit to miss-islington/cpython that referenced this pull request Jul 26, 2022
…H-95058) * syslog_get_argv() swallows exceptions, but not in all cases. * if ident is non UTF-8 encodable, syslog.openlog() fails after setting the global reference to ident. Now the C string saved internally in the previous call to openlog() points to the freed memory. * PySys_Audit() can crash if ident is NULL. * There may be a race condition with syslog.syslog(), because the global reference to ident is decrefed before setting the new value. * Possible use of freed memory if syslog.openlog() is called while the GIL is released in syslog.syslog(). (cherry picked from commit 68c555a) Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
bedevere-bot commented Jul 26, 2022
GH-95262 is a backport of this pull request to the 3.10 branch. |
miss-islington added a commit that referenced this pull request Jul 26, 2022
* syslog_get_argv() swallows exceptions, but not in all cases. * if ident is non UTF-8 encodable, syslog.openlog() fails after setting the global reference to ident. Now the C string saved internally in the previous call to openlog() points to the freed memory. * PySys_Audit() can crash if ident is NULL. * There may be a race condition with syslog.syslog(), because the global reference to ident is decrefed before setting the new value. * Possible use of freed memory if syslog.openlog() is called while the GIL is released in syslog.syslog(). (cherry picked from commit 68c555a) Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
ambv pushed a commit that referenced this pull request Jul 26, 2022
…-95261) * syslog_get_argv() swallows exceptions, but not in all cases. * if ident is non UTF-8 encodable, syslog.openlog() fails after setting the global reference to ident. Now the C string saved internally in the previous call to openlog() points to the freed memory. * PySys_Audit() can crash if ident is NULL. * There may be a race condition with syslog.syslog(), because the global reference to ident is decrefed before setting the new value. * Possible use of freed memory if syslog.openlog() is called while the GIL is released in syslog.syslog(). (cherry picked from commit 68c555a) Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
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global reference to ident. Now the C string saved internally in the previous
call to openlog() points to the freed memory.
reference to ident is decrefed before setting the new value.