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8948e11f45
/proc/$PID/fd has r-x------ permissions, so if process does setuid(), it will not be able to access /proc/*/fd/. This breaks fstatat() emulation in glibc. open("foo", O_RDONLY|O_DIRECTORY) = 4 setuid32(65534) = 0 stat64("/proc/self/fd/4/bar", 0xbfafb298) = -1 EACCES (Permission denied) Signed-off-by: Alexey Dobriyan <adobriyan@openvz.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: James Morris <jmorris@namei.org> Cc: Chris Wright <chrisw@sous-sol.org> Cc: Ulrich Drepper <drepper@redhat.com> Cc: Oleg Nesterov <oleg@tv-sign.ru> Acked-By: Kirill Korotaev <dev@openvz.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christoph Hellwig <hch@lst.de> 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 | ||
generic.c | ||
inode-alloc.txt | ||
inode.c | ||
internal.h | ||
kcore.c | ||
kmsg.c | ||
Makefile | ||
mmu.c | ||
nommu.c | ||
proc_devtree.c | ||
proc_misc.c | ||
proc_sysctl.c | ||
proc_tty.c | ||
root.c | ||
task_mmu.c | ||
task_nommu.c | ||
vmcore.c |