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authorLinus Torvalds <torvalds@linux-foundation.org>2020-06-04 14:07:08 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-06-04 14:07:08 -0700
commit15a2bc4dbb9cfed1c661a657fcb10798150b7598 (patch)
treef9ca834dbdd2e6cf1d5a2cef5008f82c72b00261 /arch/alpha/kernel
parent9ff7258575d5fee011649d20cc56de720a395191 (diff)
parent3977e285ee89a94699255dbbf6eeea13889a1083 (diff)
downloadlinux-stericsson-15a2bc4dbb9cfed1c661a657fcb10798150b7598.tar.gz
Merge branch 'exec-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
Pull execve updates from Eric Biederman: "Last cycle for the Nth time I ran into bugs and quality of implementation issues related to exec that could not be easily be fixed because of the way exec is implemented. So I have been digging into exec and cleanup up what I can. I don't think I have exec sorted out enough to fix the issues I started with but I have made some headway this cycle with 4 sets of changes. - promised cleanups after introducing exec_update_mutex - trivial cleanups for exec - control flow simplifications - remove the recomputation of bprm->cred The net result is code that is a bit easier to understand and work with and a decrease in the number of lines of code (if you don't count the added tests)" * 'exec-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: (24 commits) exec: Compute file based creds only once exec: Add a per bprm->file version of per_clear binfmt_elf_fdpic: fix execfd build regression selftests/exec: Add binfmt_script regression test exec: Remove recursion from search_binary_handler exec: Generic execfd support exec/binfmt_script: Don't modify bprm->buf and then return -ENOEXEC exec: Move the call of prepare_binprm into search_binary_handler exec: Allow load_misc_binary to call prepare_binprm unconditionally exec: Convert security_bprm_set_creds into security_bprm_repopulate_creds exec: Factor security_bprm_creds_for_exec out of security_bprm_set_creds exec: Teach prepare_exec_creds how exec treats uids & gids exec: Set the point of no return sooner exec: Move handling of the point of no return to the top level exec: Run sync_mm_rss before taking exec_update_mutex exec: Fix spelling of search_binary_handler in a comment exec: Move the comment from above de_thread to above unshare_sighand exec: Rename flush_old_exec begin_new_exec exec: Move most of setup_new_exec into flush_old_exec exec: In setup_new_exec cache current in the local variable me ...
Diffstat (limited to 'arch/alpha/kernel')
-rw-r--r--arch/alpha/kernel/binfmt_loader.c11
1 files changed, 2 insertions, 9 deletions
diff --git a/arch/alpha/kernel/binfmt_loader.c b/arch/alpha/kernel/binfmt_loader.c
index a8d0d6e06526..e4be7a543ecf 100644
--- a/arch/alpha/kernel/binfmt_loader.c
+++ b/arch/alpha/kernel/binfmt_loader.c
@@ -19,10 +19,6 @@ static int load_binary(struct linux_binprm *bprm)
if (bprm->loader)
return -ENOEXEC;
- allow_write_access(bprm->file);
- fput(bprm->file);
- bprm->file = NULL;
-
loader = bprm->vma->vm_end - sizeof(void *);
file = open_exec("/sbin/loader");
@@ -33,12 +29,9 @@ static int load_binary(struct linux_binprm *bprm)
/* Remember if the application is TASO. */
bprm->taso = eh->ah.entry < 0x100000000UL;
- bprm->file = file;
+ bprm->interpreter = file;
bprm->loader = loader;
- retval = prepare_binprm(bprm);
- if (retval < 0)
- return retval;
- return search_binary_handler(bprm);
+ return 0;
}
static struct linux_binfmt loader_format = {