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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-20 20:00:43 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-20 20:00:43 -0800 |
| commit | 4c9a44aebeaef35570a67aed17b72a2cf8d0b219 (patch) | |
| tree | abb874fe7f50671627b282f6c7fb58db5e75a2e3 /fs/exec.c | |
| parent | 1f0377ff088ed2971c57debc9b0c3b846ec431fd (diff) | |
| parent | cfde819088422503b5c69e03ab7bb90f87121d4d (diff) | |
| download | lwn-4c9a44aebeaef35570a67aed17b72a2cf8d0b219.tar.gz lwn-4c9a44aebeaef35570a67aed17b72a2cf8d0b219.zip | |
Merge branch 'akpm' (Andrew's patch-bomb)
Merge the rest of Andrew's patches for -rc1:
"A bunch of fixes and misc missed-out-on things.
That'll do for -rc1. I still have a batch of IPC patches which still
have a possible bug report which I'm chasing down."
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (25 commits)
keys: use keyring_alloc() to create module signing keyring
keys: fix unreachable code
sendfile: allows bypassing of notifier events
SGI-XP: handle non-fatal traps
fat: fix incorrect function comment
Documentation: ABI: remove testing/sysfs-devices-node
proc: fix inconsistent lock state
linux/kernel.h: fix DIV_ROUND_CLOSEST with unsigned divisors
memcg: don't register hotcpu notifier from ->css_alloc()
checkpatch: warn on uapi #includes that #include <uapi/...
revert "rtc: recycle id when unloading a rtc driver"
mm: clean up transparent hugepage sysfs error messages
hfsplus: add error message for the case of failure of sync fs in delayed_sync_fs() method
hfsplus: rework processing of hfs_btree_write() returned error
hfsplus: rework processing errors in hfsplus_free_extents()
hfsplus: avoid crash on failed block map free
kcmp: include linux/ptrace.h
drivers/rtc/rtc-imxdi.c: must include <linux/spinlock.h>
mm: cma: WARN if freed memory is still in use
exec: do not leave bprm->interp on stack
...
Diffstat (limited to 'fs/exec.c')
| -rw-r--r-- | fs/exec.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/fs/exec.c b/fs/exec.c index af8ec80f816d..18c45cac368f 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -1175,9 +1175,24 @@ void free_bprm(struct linux_binprm *bprm) mutex_unlock(¤t->signal->cred_guard_mutex); abort_creds(bprm->cred); } + /* If a binfmt changed the interp, free it. */ + if (bprm->interp != bprm->filename) + kfree(bprm->interp); kfree(bprm); } +int bprm_change_interp(char *interp, struct linux_binprm *bprm) +{ + /* If a binfmt changed the interp, free it first. */ + if (bprm->interp != bprm->filename) + kfree(bprm->interp); + bprm->interp = kstrdup(interp, GFP_KERNEL); + if (!bprm->interp) + return -ENOMEM; + return 0; +} +EXPORT_SYMBOL(bprm_change_interp); + /* * install the new credentials for this executable */ |