linux-kernelorg-stable/fs
Daniel Wagner b6139a6abf lib/group_cpus: Let group_cpu_evenly() return the number of initialized masks
group_cpu_evenly() might have allocated less groups then requested:

group_cpu_evenly()
  __group_cpus_evenly()
    alloc_nodes_groups()
      # allocated total groups may be less than numgrps when
      # active total CPU number is less then numgrps

In this case, the caller will do an out of bound access because the
caller assumes the masks returned has numgrps.

Return the number of groups created so the caller can limit the access
range accordingly.

Acked-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Daniel Wagner <wagi@kernel.org>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20250617-isolcpus-queue-counters-v1-1-13923686b54b@kernel.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-07-01 10:24:11 -06:00
..
9p vfs-6.16-rc1.netfs 2025-06-02 15:04:06 -07:00
adfs
affs
afs vfs-6.16-rc1.netfs 2025-06-02 15:04:06 -07:00
autofs VFS: rename lookup_one_len family to lookup_noperm and remove permission check 2025-04-08 11:24:36 +02:00
bcachefs bcachefs: Plumb correct ip to trans_relock_fail tracepoint 2025-06-26 00:01:16 -04:00
befs
bfs bfs: convert bfs to use the new mount api 2025-04-07 09:36:20 +02:00
btrfs for-6.16-rc3-tag 2025-06-23 11:16:38 -07:00
cachefiles vfs-6.16-rc1.netfs 2025-06-02 15:04:06 -07:00
ceph A one-liner that leads to a startling (but also very much rational) 2025-06-06 17:56:19 -07:00
coda
configfs - The 3 patch series "hung_task: extend blocking task stacktrace dump to 2025-05-31 19:12:53 -07:00
cramfs
crypto fscrypt: add support for hardware-wrapped keys 2025-04-08 19:32:11 -07:00
debugfs VFS: rename lookup_one_len family to lookup_noperm and remove permission check 2025-04-08 11:24:36 +02:00
devpts devpts: Fix type for uid and gid params 2025-04-07 15:22:12 +02:00
dlm treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
ecryptfs VFS: rename lookup_one_len family to lookup_noperm and remove permission check 2025-04-08 11:24:36 +02:00
efivarfs vfs-6.16-rc1.super 2025-05-26 09:33:44 -07:00
efs
erofs erofs: remove a superfluous check for encoded extents 2025-06-20 23:41:12 +08:00
exfat exfat: do not clear volume dirty flag during sync 2025-05-26 20:25:23 +09:00
exportfs readdir: supply dir_context.count as readdir buffer size hint 2025-05-29 12:31:23 +02:00
ext2 ext2: Deprecate DAX 2025-04-29 13:08:20 +02:00
ext4 treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
f2fs f2fs: fix to zero post-eof page 2025-06-18 21:35:29 +00:00
fat
freevxfs
fuse lib/group_cpus: Let group_cpu_evenly() return the number of initialized masks 2025-07-01 10:24:11 -06:00
gfs2 gfs2: Don't clear sb->s_fs_info in gfs2_sys_fs_add 2025-05-30 19:20:20 +02:00
hfs Revert "hfs{plus}: add deprecation warning" 2025-04-19 22:48:59 +02:00
hfsplus hfsplus: use bdev_rw_virt in hfsplus_submit_bio 2025-05-07 07:31:08 -06:00
hostfs Updates for UML for this cycle, notably: 2025-04-02 12:25:03 -07:00
hpfs
hugetlbfs - The 6 patch series "Enable strict percpu address space checks" from 2025-04-01 09:29:18 -07:00
iomap iomap: don't lose folio dropbehind state for overwrites 2025-05-28 09:26:07 +02:00
isofs isofs: fix Y2038 and Y2156 issues in Rock Ridge TF entry 2025-04-15 11:56:57 +02:00
jbd2 treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
jffs2 jffs2: check jffs2_prealloc_raw_node_refs() result in few other places 2025-05-22 20:54:38 +02:00
jfs - The 11 patch series "Add folio_mk_pte()" from Matthew Wilcox 2025-05-31 15:44:16 -07:00
kernfs Driver core changes for 6.16-rc1 2025-05-29 09:11:39 -07:00
lockd
minix
netfs vfs-6.16-rc1.netfs 2025-06-02 15:04:06 -07:00
nfs NFS Clent Updates for Linux 6.16 2025-06-03 16:13:32 -07:00
nfs_common nfs_localio: change nfsd_file_put_local() to take a pointer to __rcu pointer 2025-05-28 17:17:14 -04:00
nfsd nfsd-6.16 fixes: 2025-06-21 09:20:15 -07:00
nilfs2 treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
nls
notify \n 2025-05-29 10:34:26 -07:00
ntfs3 - The 2 patch series "zram: support algorithm-specific parameters" from 2025-06-02 16:00:26 -07:00
ocfs2 treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
omfs omfs: convert to new mount API 2025-04-28 10:54:39 +02:00
openpromfs
orangefs orangefs: Convert to use the new mount API 2025-05-28 12:05:30 -07:00
overlayfs vfs-6.16-rc3.fixes 2025-06-16 08:18:43 -07:00
proc fs/proc/task_mmu: fix PAGE_IS_PFNZERO detection for the huge zero folio 2025-06-25 15:55:03 -07:00
pstore treewide: Switch/rename to timer_delete[_sync]() 2025-04-05 10:30:12 +02:00
qnx4
qnx6
quota VFS: rename lookup_one_len family to lookup_noperm and remove permission check 2025-04-08 11:24:36 +02:00
ramfs
resctrl x86,fs/resctrl: Remove inappropriate references to cacheinfo in the resctrl subsystem 2025-06-16 21:06:12 +02:00
romfs
smb cifs: Fix reading into an ITER_FOLIOQ from the smbdirect code 2025-06-26 11:13:16 -05:00
squashfs squashfs: add optional full compressed block caching 2025-05-27 19:40:33 -07:00
sysfs sysfs: constify attribute_group::bin_attrs 2025-04-15 18:46:10 +02:00
tests
tracefs VFS: rename lookup_one_len family to lookup_noperm and remove permission check 2025-04-08 11:24:36 +02:00
ubifs This pull request contains the following fixes for JFFS2 and UBIFS: 2025-06-07 07:24:07 -07:00
udf udf: Make sure i_lenExtents is uptodate on inode eviction 2025-05-07 12:04:07 +02:00
ufs ufs: convert ufs to the new mount API 2025-05-14 22:40:55 -04:00
unicode
vboxsf vboxsf: Convert to writepages 2025-04-07 09:36:48 +02:00
verity
xfs vfs-6.16-rc2.fixes 2025-06-02 12:49:16 -07:00
zonefs zonefs: use bdev_rw_virt in zonefs_read_super 2025-05-07 07:31:07 -06:00
Kconfig fs/resctrl: Add boiler plate for external resctrl code 2025-05-16 11:05:40 +02:00
Kconfig.binfmt
Makefile fs/resctrl: Add boiler plate for external resctrl code 2025-05-16 11:05:40 +02:00
aio.c fs: aio: initialize .ki_write_stream of read-write request 2025-05-07 08:00:11 -06:00
anon_inodes.c anon_inode: raise SB_I_NODEV and SB_I_NOEXEC 2025-04-07 16:19:04 +02:00
attr.c
backing-file.c
bad_inode.c
binfmt_elf.c vfs-6.16-rc1.misc 2025-05-26 09:02:39 -07:00
binfmt_elf_fdpic.c
binfmt_flat.c
binfmt_misc.c VFS: rename lookup_one_len family to lookup_noperm and remove permission check 2025-04-08 11:24:36 +02:00
binfmt_script.c
bpf_fs_kfuncs.c
buffer.c vfs-6.16-rc1.writepage 2025-05-26 08:23:09 -07:00
char_dev.c
compat_binfmt_elf.c
coredump.c coredump: validate socket name as it is written 2025-05-21 13:59:12 +02:00
d_path.c
dax.c vfs-6.16-rc2.fixes 2025-06-02 12:49:16 -07:00
dcache.c vfs-6.16-rc1.misc 2025-05-26 09:02:39 -07:00
direct-io.c
drop_caches.c
eventfd.c
eventpoll.c fs/eventpoll: fix endless busy loop after timeout has expired 2025-05-02 14:21:26 +02:00
exec.c - The 11 patch series "Add folio_mk_pte()" from Matthew Wilcox 2025-05-31 15:44:16 -07:00
fcntl.c
fhandle.c
file.c fs: drop assert in file_seek_cur_needs_f_lock 2025-06-16 09:59:24 +02:00
file_table.c fs: Make file-nr output the total allocated file handles 2025-04-21 10:27:58 +02:00
filesystems.c fs/filesystems: Fix potential unsigned integer underflow in fs_name() 2025-04-14 13:05:59 +02:00
fs-writeback.c
fs_context.c fs/fs_context: Mark an unlikely if condition with unlikely() in vfs_parse_monolithic_sep() 2025-04-14 13:05:59 +02:00
fs_parser.c fs/fs_parse: Remove unused and problematic validate_constant_table() 2025-04-21 10:27:59 +02:00
fs_pin.c
fs_struct.c
fs_types.c
fsopen.c
init.c
inode.c
internal.h vfs-6.16-rc1.super 2025-05-26 09:33:44 -07:00
ioctl.c vfs-6.16-rc1.super 2025-05-26 09:33:44 -07:00
kernel_read_file.c
libfs.c vfs-6.16-rc1.super 2025-05-26 09:33:44 -07:00
locks.c
mbcache.c
mnt_idmapping.c
mount.h Don't propagate mounts into detached trees 2025-05-26 17:35:32 -04:00
mpage.c fs: use writeback_iter directly in mpage_writepages 2025-05-09 12:37:48 +02:00
namei.c VFS: change try_lookup_noperm() to skip revalidation 2025-06-11 12:03:42 +02:00
namespace.c userns and mnt_idmap leak in open_tree_attr(2) 2025-06-24 10:25:04 -04:00
nsfs.c
open.c fs/open: make do_truncate() killable 2025-05-15 12:03:12 +02:00
pidfs.c pidfs: never refuse ppid == 0 in PIDFD_GET_INFO 2025-06-04 22:48:32 +02:00
pipe.c sort.h: hoist cmp_int() into generic header file 2025-05-11 17:54:12 -07:00
pnode.c Don't propagate mounts into detached trees 2025-05-26 17:35:32 -04:00
pnode.h replace collect_mounts()/drop_collected_mounts() with a safer variant 2025-06-23 14:01:49 -04:00
posix_acl.c
proc_namespace.c ->mnt_devname is never NULL 2025-05-23 14:20:44 +02:00
read_write.c fs/read_write: make default_llseek() killable 2025-05-15 12:03:12 +02:00
readdir.c readdir: supply dir_context.count as readdir buffer size hint 2025-05-29 12:31:23 +02:00
remap_range.c
select.c select: core_sys_select add unlikely branch hint on return path 2025-04-21 10:27:58 +02:00
seq_file.c
signalfd.c
splice.c splice: remove duplicate noinline from pipe_clear_nowait 2025-04-25 12:11:56 +02:00
stack.c
stat.c xfs: New code for 6.16 2025-05-26 12:56:01 -07:00
statfs.c
super.c fs: unlock the superblock during iterate_supers_type 2025-06-12 14:27:39 +02:00
sync.c
sysctls.c
timerfd.c
userfaultfd.c mm/userfaultfd: fix uninitialized output field for -EAGAIN race 2025-05-07 23:39:39 -07:00
utimes.c
xattr.c fs/xattr.c: fix simple_xattr_list() 2025-06-06 10:00:17 +02:00