forked from luck/tmp_suning_uos_patched
9f6e963f06
1. proc_task_readdir()->first_tid() path truncates f_pos to int, this is wrong even on 64bit. We could check that f_pos < PID_MAX or even INT_MAX in proc_task_readdir(), but this patch simply checks the potential overflow in first_tid(), this check is nop on 64bit. We do not care if it was negative and the new unsigned value is huge, all we need to ensure is that we never wrongly return !NULL. 2. Remove the 2nd "nr != 0" check before get_nr_threads(), nr_threads == 0 is not distinguishable from !pid_task() above. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Michal Hocko <mhocko@suse.cz> Cc: Sameer Nanda <snanda@chromium.org> Cc: Sergey Dyasly <dserrg@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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| .. | ||
| array.c | ||
| base.c | ||
| cmdline.c | ||
| consoles.c | ||
| cpuinfo.c | ||
| devices.c | ||
| fd.c | ||
| fd.h | ||
| generic.c | ||
| inode.c | ||
| internal.h | ||
| interrupts.c | ||
| Kconfig | ||
| kcore.c | ||
| kmsg.c | ||
| loadavg.c | ||
| Makefile | ||
| meminfo.c | ||
| namespaces.c | ||
| nommu.c | ||
| page.c | ||
| proc_devtree.c | ||
| proc_net.c | ||
| proc_sysctl.c | ||
| proc_tty.c | ||
| root.c | ||
| self.c | ||
| softirqs.c | ||
| stat.c | ||
| task_mmu.c | ||
| task_nommu.c | ||
| uptime.c | ||
| version.c | ||
| vmcore.c | ||