This is the start of the stable review cycle for the 5.15.52 release. There are 28 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know. Responses should be made by Sat, 02 Jul 2022 13:32:22 +0000. Anything received after that time might be too late. The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.15.52-rc1.gz or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.15.y and the diffstat can be found below. thanks, greg k-h ------------- Pseudo-Shortlog of commits: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Linux 5.15.52-rc1 Pavel Begunkov <asml.silence@xxxxxxxxx> io_uring: fix not locked access to fixed buf table Vladimir Oltean <vladimir.oltean@xxxxxxx> net: mscc: ocelot: allow unregistered IP multicast flooding to CPU Ping-Ke Shih <pkshih@xxxxxxxxxxx> rtw88: rtw8821c: enable rfe 6 devices Guo-Feng Fan <vincent_fann@xxxxxxxxxxx> rtw88: 8821c: support RFE type4 wifi NIC Christian Brauner <brauner@xxxxxxxxxx> fs: account for group membership Christian Brauner <brauner@xxxxxxxxxx> fs: fix acl translation Christian Brauner <christian.brauner@xxxxxxxxxx> fs: support mapped mounts of mapped filesystems Christian Brauner <christian.brauner@xxxxxxxxxx> fs: add i_user_ns() helper Christian Brauner <christian.brauner@xxxxxxxxxx> fs: port higher-level mapping helpers Christian Brauner <christian.brauner@xxxxxxxxxx> fs: remove unused low-level mapping helpers Christian Brauner <christian.brauner@xxxxxxxxxx> fs: use low-level mapping helpers Christian Brauner <christian.brauner@xxxxxxxxxx> docs: update mapping documentation Christian Brauner <christian.brauner@xxxxxxxxxx> fs: account for filesystem mappings Christian Brauner <christian.brauner@xxxxxxxxxx> fs: tweak fsuidgid_has_mapping() Christian Brauner <christian.brauner@xxxxxxxxxx> fs: move mapping helpers Christian Brauner <christian.brauner@xxxxxxxxxx> fs: add is_idmapped_mnt() helper Naveen N. Rao <naveen.n.rao@xxxxxxxxxxxxxxxxxx> powerpc/ftrace: Remove ftrace init tramp once kernel init is complete Darrick J. Wong <djwong@xxxxxxxxxx> xfs: only bother with sync_filesystem during readonly remount Darrick J. Wong <djwong@xxxxxxxxxx> xfs: prevent UAF in xfs_log_item_in_current_chkpt Dave Chinner <dchinner@xxxxxxxxxx> xfs: check sb_meta_uuid for dabuf buffer recovery Darrick J. Wong <djwong@xxxxxxxxxx> xfs: remove all COW fork extents when remounting readonly Yang Xu <xuyang2018.jy@xxxxxxxxxxx> xfs: Fix the free logic of state in xfs_attr_node_hasname Brian Foster <bfoster@xxxxxxxxxx> xfs: punch out data fork delalloc blocks on COW writeback failure Rustam Kovhaev <rkovhaev@xxxxxxxxx> xfs: use kmem_cache_free() for kmem_cache objects Coly Li <colyli@xxxxxxx> bcache: memset on stack variables in bch_btree_check() and bch_sectors_dirty_init() Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> x86, kvm: use proper ASM macros for kvm_vcpu_is_preempted Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> clocksource/drivers/ixp4xx: remove __init from ixp4xx_timer_setup() Masahiro Yamada <masahiroy@xxxxxxxxxx> tick/nohz: unexport __init-annotated tick_nohz_full_setup() ------------- Diffstat: Documentation/filesystems/idmappings.rst | 72 -------- Makefile | 4 +- arch/powerpc/include/asm/ftrace.h | 4 +- arch/powerpc/kernel/trace/ftrace.c | 15 +- arch/powerpc/mm/mem.c | 2 + arch/x86/kernel/kvm.c | 2 +- drivers/clocksource/mmio.c | 2 +- drivers/clocksource/timer-ixp4xx.c | 10 +- drivers/md/bcache/btree.c | 1 + drivers/md/bcache/writeback.c | 1 + drivers/net/ethernet/mscc/ocelot.c | 8 +- drivers/net/wireless/realtek/rtw88/rtw8821c.c | 14 +- fs/attr.c | 26 ++- fs/cachefiles/bind.c | 2 +- fs/ecryptfs/main.c | 2 +- fs/io_uring.c | 28 +-- fs/ksmbd/smbacl.c | 19 +-- fs/ksmbd/smbacl.h | 5 +- fs/namespace.c | 53 ++++-- fs/nfsd/export.c | 2 +- fs/open.c | 8 +- fs/overlayfs/super.c | 2 +- fs/posix_acl.c | 27 ++- fs/proc_namespace.c | 2 +- fs/xattr.c | 6 +- fs/xfs/libxfs/xfs_attr.c | 17 +- fs/xfs/xfs_aops.c | 15 +- fs/xfs/xfs_buf_item_recover.c | 2 +- fs/xfs/xfs_extfree_item.c | 6 +- fs/xfs/xfs_inode.c | 8 +- fs/xfs/xfs_linux.h | 1 + fs/xfs/xfs_log_cil.c | 6 +- fs/xfs/xfs_super.c | 21 ++- fs/xfs/xfs_symlink.c | 4 +- include/linux/fs.h | 141 +++++----------- include/linux/mnt_idmapping.h | 234 ++++++++++++++++++++++++++ include/linux/platform_data/timer-ixp4xx.h | 5 +- include/linux/posix_acl_xattr.h | 4 + kernel/time/tick-sched.c | 1 - security/commoncap.c | 15 +- 40 files changed, 498 insertions(+), 299 deletions(-)