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gh-95041: Fix several minor issues in syslog.openlog()#95058
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serhiy-storchaka merged 3 commits intoJul 26, 2022
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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
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type-bug
An unexpected behavior, bug, or error
needs backport to 3.10
only security fixes
needs backport to 3.11
only security fixes
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Jul 20, 2022
* Possible use of freed memory if syslog.openlog() is called while the GIL is released in syslog.syslog().
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Thanks @serhiy-storchaka for the PR 🌮🎉.. I'm working now to backport this PR to: 3.10, 3.11. |
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miss-islington
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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>
miss-islington
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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>
miss-islington
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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. * 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
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…-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.