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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-07-18 10:01:04 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-07-18 10:01:04 -0700 |
| commit | 3a26a5b1513cddfc018c8e264979bc6e28f8ec1f (patch) | |
| tree | 56356f468ed5c3e62f30d6d5c075ddb3e627a4f9 /fs/proc/base.c | |
| parent | 8be5701342790eb42c67f4f8609e203d6a461a4a (diff) | |
| parent | 5a09e6ce90e1bf26f0915e7e31329402766ffead (diff) | |
Merge branch 'akpm' (patches from Andrew)
Merge fixes from Andrew Morton:
"25 fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (25 commits)
lib/decompress: set the compressor name to NULL on error
mm/cma_debug: correct size input to bitmap function
mm/cma_debug: fix debugging alloc/free interface
mm/page_owner: set correct gfp_mask on page_owner
mm/page_owner: fix possible access violation
fsnotify: fix oops in fsnotify_clear_marks_by_group_flags()
/proc/$PID/cmdline: fixup empty ARGV case
dma-debug: skip debug_dma_assert_idle() when disabled
hexdump: fix for non-aligned buffers
checkpatch: fix long line messages about patch context
mm: clean up per architecture MM hook header files
MAINTAINERS: uclinux-h8-devel is moderated for non-subscribers
mailmap: update Sudeep Holla's email id
Update Viresh Kumar's email address
mm, meminit: suppress unused memory variable warning
configfs: fix kernel infoleak through user-controlled format string
include, lib: add __printf attributes to several function prototypes
s390/hugetlb: add hugepages_supported define
mm: hugetlb: allow hugepages_supported to be architecture specific
revert "s390/mm: make hugepages_supported a boot time decision"
...
Diffstat (limited to 'fs/proc/base.c')
| -rw-r--r-- | fs/proc/base.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/proc/base.c b/fs/proc/base.c index 87782e874b6a..aa50d1ac28fc 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -243,6 +243,11 @@ static ssize_t proc_pid_cmdline_read(struct file *file, char __user *buf, len1 = arg_end - arg_start; len2 = env_end - env_start; + /* Empty ARGV. */ + if (len1 == 0) { + rv = 0; + goto out_free_page; + } /* * Inherently racy -- command line shares address space * with code and data. |