From 033182baeab63ce96a6eb8aef1a6cd444fcf9519 Mon Sep 17 00:00:00 2001 From: Paul Moore Date: Fri, 29 May 2026 11:24:37 -0400 Subject: selinux: revert use of __getname() in selinux_genfs_get_sid() Revert commit 54067bacb49c ("selinux: hooks: use __getname() to allocate path buffer") as it improperly assumed that PATH_MAX == PAGE_SIZE everywhere. Moving away from __get_free_page() is still a good thing and will be revisited in the future. Cc: Mike Rapoport (Microsoft) Reported-by: Venkat Rao Bagalkote Signed-off-by: Paul Moore --- security/selinux/hooks.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index 95d0fb20d84e..97801966bf32 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -1336,7 +1336,7 @@ static int selinux_genfs_get_sid(struct dentry *dentry, struct super_block *sb = dentry->d_sb; char *buffer, *path; - buffer = __getname(); + buffer = (char *)__get_free_page(GFP_KERNEL); if (!buffer) return -ENOMEM; @@ -1361,7 +1361,7 @@ static int selinux_genfs_get_sid(struct dentry *dentry, rc = 0; } } - __putname(buffer); + free_page((unsigned long)buffer); return rc; } -- cgit v1.2.3