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authorThomas Gleixner <tglx@linutronix.de>2018-08-06 12:45:42 +0200
committerThomas Gleixner <tglx@linutronix.de>2018-08-06 12:45:42 +0200
commit9e90c7985229430428dc9ba0ec7fe422901b456d (patch)
treecae2072feba8cc433a32d96568bbcf36070bd6e5 /fs/inode.c
parentgenirq/irqchip: Remove MULTI_IRQ_HANDLER as it's now obselete (diff)
parentirqchip/gic-v3-its: Make its_lock a raw_spin_lock_t (diff)
downloadwireguard-linux-9e90c7985229430428dc9ba0ec7fe422901b456d.tar.xz
wireguard-linux-9e90c7985229430428dc9ba0ec7fe422901b456d.zip
Merge tag 'irqchip-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/core
Pull irqchip updates from Marc Zyngier: - GICv3 ITS LPI allocation revamp - GICv3 support for hypervisor-enforced LPI range - GICv3 ITS conversion to raw spinlock
Diffstat (limited to 'fs/inode.c')
-rw-r--r--fs/inode.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/inode.c b/fs/inode.c
index 2c300e981796..8c86c809ca17 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -1999,8 +1999,14 @@ void inode_init_owner(struct inode *inode, const struct inode *dir,
inode->i_uid = current_fsuid();
if (dir && dir->i_mode & S_ISGID) {
inode->i_gid = dir->i_gid;
+
+ /* Directories are special, and always inherit S_ISGID */
if (S_ISDIR(mode))
mode |= S_ISGID;
+ else if ((mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP) &&
+ !in_group_p(inode->i_gid) &&
+ !capable_wrt_inode_uidgid(dir, CAP_FSETID))
+ mode &= ~S_ISGID;
} else
inode->i_gid = current_fsgid();
inode->i_mode = mode;