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(parent: 2514e48) | patch
ovl: fix uninitialized pointer read in ovl_lookup_real_one()
authorMiklos Szeredi <mszeredi@redhat.com>
Fri, 6 Aug 2021 08:03:12 +0000 (10:03 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 3 Sep 2021 08:22:46 +0000 (10:22 +0200)
commit60c1ed05cba1134c4aa7f5f8ec4782e5141b2593
tree4fea00884de167ecc2931a3d584760bd2538166atree
parent2514e486faf7a0d995c5e0932935de4029f7e23bcommit | diff
ovl: fix uninitialized pointer read in ovl_lookup_real_one()

[ Upstream commit 580c610429b3994e8db24418927747cf28443cde ]

One error path can result in release_dentry_name_snapshot() being called
before "name" was initialized by take_dentry_name_snapshot().

Fix by moving the release_dentry_name_snapshot() to immediately after the
only use.

Reported-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
fs/overlayfs/export.c diff | blob | blame | history
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git