[Bugme-new] [Bug 10596] New: read, readv, write and writev system calls are not atomic
bugme-daemon at bugzilla.kernel.org
bugme-daemon at bugzilla.kernel.org
Sat May 3 00:33:27 PDT 2008
http://bugzilla.kernel.org/show_bug.cgi?id=10596
Summary: read, readv, write and writev system calls are not
atomic
Product: File System
Version: 2.5
KernelVersion: 2.6.25-git19
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Other
AssignedTo: fs_other at kernel-bugs.osdl.org
ReportedBy: mattilinnanvuori at yahoo.com
Problem Description: read, readv, write and writev system calls are not atomic
even though standards require them to. They are not atomic because the sys_
functions in fs/read_write.c copy the value of variable f_pos to and from a
local variable without locking.
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