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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-02-04 03:44:12 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-02-04 03:44:12 +0300 |
| commit | 551007a8f10afdc45959ad637d6bee816716769f (patch) | |
| tree | e2042bb808e98fcdd637c92e16523ef35cc80039 | |
| parent | 25b20ae8151b3d5289896f4f200ff790d2cdf4bf (diff) | |
| parent | 186edf7e368c40d06cf727a1ad14698ea67b74ad (diff) | |
| download | linux-551007a8f10afdc45959ad637d6bee816716769f.tar.xz | |
Merge tag 'selinux-pr-20220203' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux
Pull selinux fix from Paul Moore:
"One small SELinux patch to ensure that a policy structure field is
properly reset after freeing so that we don't inadvertently do a
double-free on certain error conditions"
* tag 'selinux-pr-20220203' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
selinux: fix double free of cond_list on error paths
| -rw-r--r-- | security/selinux/ss/conditional.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/security/selinux/ss/conditional.c b/security/selinux/ss/conditional.c index 2ec6e5cd25d9..feb206f3acb4 100644 --- a/security/selinux/ss/conditional.c +++ b/security/selinux/ss/conditional.c @@ -152,6 +152,8 @@ static void cond_list_destroy(struct policydb *p) for (i = 0; i < p->cond_list_len; i++) cond_node_destroy(&p->cond_list[i]); kfree(p->cond_list); + p->cond_list = NULL; + p->cond_list_len = 0; } void cond_policydb_destroy(struct policydb *p) @@ -441,7 +443,6 @@ int cond_read_list(struct policydb *p, void *fp) return 0; err: cond_list_destroy(p); - p->cond_list = NULL; return rc; } |