Linus Torvalds d3d90cc289 Provide stable parent and name to ->d_revalidate() instances ... Most of the filesystem methods where we care about dentry name and parent have their stability guaranteed by the callers; ->d_revalidate() is the major exception. It's easy enough for callers to supply stable values for expected name and expected parent of the dentry being validated. That kills quite a bit of boilerplate in ->d_revalidate() instances, along with a bunch of races where they used to access ->d_name without sufficient precautions. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQQqUNBr3gm4hGXdBJlZ7Krx/gZQ6wUCZ5gkoQAKCRBZ7Krx/gZQ 6w9FAP4nyxNNWMjE1TwuWR/DNDMYYuw/qn/miZ88B5BUM8hzqgD/W2SjRvcbSaIm xSIYpbtKgtqNU34P1PU+dBvL8Utz2AE= =TWY8 -----END PGP SIGNATURE----- Merge tag 'pull-revalidate' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull vfs d_revalidate updates from Al Viro: "Provide stable parent and name to ->d_revalidate() instances Most of the filesystem methods where we care about dentry name and parent have their stability guaranteed by the callers; ->d_revalidate() is the major exception. It's easy enough for callers to supply stable values for expected name and expected parent of the dentry being validated. That kills quite a bit of boilerplate in ->d_revalidate() instances, along with a bunch of races where they used to access ->d_name without sufficient precautions" * tag 'pull-revalidate' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: 9p: fix ->rename_sem exclusion orangefs_d_revalidate(): use stable parent inode and name passed by caller ocfs2_dentry_revalidate(): use stable parent inode and name passed by caller nfs: fix ->d_revalidate() UAF on ->d_name accesses nfs{,4}_lookup_validate(): use stable parent inode passed by caller gfs2_drevalidate(): use stable parent inode and name passed by caller fuse_dentry_revalidate(): use stable parent inode and name passed by caller vfat_revalidate{,_ci}(): use stable parent inode passed by caller exfat_d_revalidate(): use stable parent inode passed by caller fscrypt_d_revalidate(): use stable parent inode passed by caller ceph_d_revalidate(): propagate stable name down into request encoding ceph_d_revalidate(): use stable parent inode passed by caller afs_d_revalidate(): use stable name and parent inode passed by caller Pass parent directory inode and expected name to ->d_revalidate() generic_ci_d_compare(): use shortname_storage ext4 fast_commit: make use of name_snapshot primitives dissolve external_name.u into separate members make take_dentry_name_snapshot() lockless dcache: back inline names with a struct-wrapped array of unsigned long make sure that DNAME_INLINE_LEN is a multiple of word size		2025-01-30 09:13:35 -08:00
..
array.c	fs/proc: do_task_stat: Fix ESP not readable during coredump	2025-01-04 10:12:18 +01:00
base.c	Provide stable parent and name to ->d_revalidate() instances	2025-01-30 09:13:35 -08:00
bootconfig.c
cmdline.c
consoles.c
cpuinfo.c
devices.c
fd.c	Pass parent directory inode and expected name to ->d_revalidate()	2025-01-27 19:25:23 -05:00
fd.h
generic.c	Pass parent directory inode and expected name to ->d_revalidate()	2025-01-27 19:25:23 -05:00
inode.c
internal.h
interrupts.c
Kconfig	virtio-mem: support CONFIG_PROC_VMCORE_DEVICE_RAM	2025-01-27 09:39:25 -05:00
kcore.c	proc/kcore: use percpu_rw_semaphore for kclist_lock	2024-12-02 11:21:07 +01:00
kmsg.c
loadavg.c
Makefile
meminfo.c	mm: zswap: modify zswap_stored_pages to be atomic_long_t	2024-11-11 00:26:42 -08:00
namespaces.c	vfs: support caching symlink lengths in inodes	2024-12-22 11:29:50 +01:00
nommu.c
page.c
proc_net.c
proc_sysctl.c	Pass parent directory inode and expected name to ->d_revalidate()	2025-01-27 19:25:23 -05:00
proc_tty.c
root.c
self.c
softirqs.c
stat.c
task_mmu.c	fs/proc/task_mmu: fix pagemap flags with PMD THP entries on 32bit	2024-12-30 17:59:08 -08:00
task_nommu.c
thread_self.c
uptime.c
util.c
version.c
vmcore.c	virtio: features, fixes, cleanups	2025-01-27 15:26:06 -08:00