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revision 5792 by kumaneko, Fri Jan 20 06:24:35 2012 UTC revision 6010 by kumaneko, Sun Apr 22 11:46:48 2012 UTC
# Line 3061  Fix 2012/01/20 Line 3061  Fix 2012/01/20
3061    
3062        Use umode_t rather than mode_t.        Use umode_t rather than mode_t.
3063        Remove ipv6_addr_copy() usage.        Remove ipv6_addr_copy() usage.
3064    
3065    Fix 2012/02/25
3066    
3067        @ Follow changes in linux-next.
3068    
3069          UMH_WAIT_PROC constant (currently 1) is scheduled for renumbering in 3.4.
3070    
3071          Use UMH_WAIT_PROC constant instead of hardcoded constant in preparation
3072          for backporting call_usermodehelper() related changes. If renumbering was
3073          backported, you will start experiencing the kernel panic upon execution
3074          of external policy loader (i.e. /sbin/ccs-init), for the kernel will no
3075          longer wait for completion of external policy loader process.
3076    
3077          Although I changed to use UMH_WAIT_PROC constant, this change could fail
3078          to detect renumbering in 2.6.22 and earlier kernels, for UMH_WAIT_PROC
3079          constant is currently available to only 2.6.23 and later kernels. If you
3080          started to experience the kernel panic, please check whether renumbering
3081          was backported or not.
3082    
3083    Fix 2012/02/29
3084    
3085        @ Fix mount flags checking order.
3086    
3087          Userspace can pass in arbitrary combinations of MS_* flags to mount().
3088    
3089          If both MS_BIND and one of MS_SHARED/MS_PRIVATE/MS_SLAVE/MS_UNBINDABLE
3090          are passed, device name which should be checked for MS_BIND was not
3091          checked because MS_SHARED/MS_PRIVATE/MS_SLAVE/MS_UNBINDABLE had higher
3092          priority than MS_BIND.
3093    
3094          If both one of MS_BIND/MS_MOVE and MS_REMOUNT are passed, device name
3095          which should not be checked for MS_REMOUNT was checked because MS_BIND/
3096          MS_MOVE had higher priority than MS_REMOUNT.
3097    
3098          Fix these bugs by changing priority to MS_REMOUNT -> MS_BIND ->
3099          MS_SHARED/MS_PRIVATE/MS_SLAVE/MS_UNBINDABLE -> MS_MOVE as with do_mount()
3100          does. Also, I changed to unconditionally return -EINVAL if more than one
3101          of MS_SHARED/MS_PRIVATE/MS_SLAVE/MS_UNBINDABLE is passed so that TOMOYO
3102          will not generate inaccurate audit logs, for commit 7a2e8a8f "VFS: Sanity
3103          check mount flags passed to change_mnt_propagation()" clarified that
3104          these flags must be exclusively passed.
3105    
3106    Fix 2012/03/08
3107    
3108        @ Allow returning other errors when ptrace permission cannot be checked.
3109    
3110          Currently -EPERM is returned when ccs_ptrace_permission() returned an
3111          error code. I changed to return return value from ccs_ptrace_permission()
3112          so that we can return -ESRCH when target process was not found.
3113    
3114    Fix 2012/03/16
3115    
3116        @ Return appropriate value to poll().
3117    
3118          Return POLLIN | POLLRDNORM | POLLOUT | POLLWRNORM if ready to read/write,
3119          POLLOUT | POLLWRNORM otherwise.
3120    
3121    Fix 2012/04/22
3122    
3123        @ Readd RHEL_MINOR/AX_MINOR checks.
3124    
3125          This check was added in revision 3741 and was removed in revision 4084.
3126    
3127          Add it back in order to support RHEL 5.0, 5.1, 5.2 kernels.
3128    
3129        @ Fix skb_kill_datagram() for kernels 2.6.0 - 2.6.11.
3130    
3131          Commit 208d8984 "[IPV4]: Fix BUG() in 2.6.x, udp_poll(), fragments +
3132          CONFIG_HIGHMEM" clarified that skb_kill_datagram() should use
3133          spin_lock_bh()/spin_unlock_bh() rather than
3134          spin_lock_irq()/spin_unlock_irq().
3135    
3136          RHEL 4.9 (2.6.9) kernel has that patch backported. So do I.

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