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severity 752872 important
Bug #752872 [libapr1] libapr1: file locking is broken, leading to file
corruption in e.g. libapache2-mod-auth-cas session files
Severity set to 'important' from 'grave'
found 752872 1.4.6-3
Bug #752872 [libapr1]
severity 752872 important
found 752872 1.4.6-3
thanks
On Friday 27 June 2014 11:37:18, Joost van Baal-Ilić wrote:
While libapr1 defaults to fcntl() locking it also supports flock(),
which does not have the problems outlined above. A patch is
attached which makes libapr1 use flock() even if
Package: libapr1
Version: 1.4.6-3+deb7u1
Severity: grave
Tags: patch, upstream
Hi,
libapr1 uses fcntl(F_SETLKW) for locking files, but this is not compatible
with multithreaded programs. fcntl(F_SETLKW) has the strange quirk that if
an open and locked file is opened and then closed a second time
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