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linux/fs
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Christian Brauner 9b3e150464 pidfs: handle kernels without namespaces cleanly 
The nsproxy structure contains nearly all of the namespaces associated
with a task. When a given namespace type is not supported by this kernel
the rules whether the corresponding pointer in struct nsproxy is NULL or
always init_<ns_type>_ns differ per namespace. Ideally, that wouldn't be
the case and for all namespace types we'd always set it to
init_<ns_type>_ns when the corresponding namespace type isn't supported.

Make sure we handle all namespaces where the pointer in struct nsproxy
can be NULL when the namespace type isn't supported.

Link: https://lore.kernel.org/r/20240722-work-pidfs-e6a83030f63e@brauner
Fixes: 5b08bd4085 ("pidfs: allow retrieval of namespace file descriptors") # mainline only
Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-07-24 10:53:13 +02:00
..
9p
Merge tag '9p-for-6.10-rc2' of https://github.com/martinetd/linux
2024-05-29 09:25:15 -07:00
adfs
fs/adfs: add MODULE_DESCRIPTION
2024-07-18 09:50:08 +02:00
affs
affs: struct slink_front: Replace 1-element array with flexible array
2024-07-11 16:14:26 +02:00
afs
Merge tag 'mm-stable-2024-07-21-14-50' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2024-07-21 17:15:46 -07:00
autofs
Merge tag 'vfs-6.11.mount.api' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2024-07-15 11:31:32 -07:00
bcachefs
Merge tag 'mm-nonmm-stable-2024-07-21-15-07' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2024-07-21 17:56:22 -07:00
befs
befs: Convert befs_symlink_read_folio() to use folio_end_read()
2024-05-31 12:31:39 +02:00
bfs
…
btrfs
Merge tag 'mm-stable-2024-07-21-14-50' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2024-07-21 17:15:46 -07:00
cachefiles
Merge patch series "cachefiles: random bugfixes"
2024-07-05 18:40:40 +02:00
ceph
ceph: drop usage of page_index
2024-07-03 19:29:55 -07:00
coda
coda: Convert coda_symlink_filler() to use folio_end_read()
2024-05-31 12:31:39 +02:00
configfs
fs/configfs: Add a callback to determine attribute visibility
2024-06-17 20:42:57 +02:00
cramfs
Merge tag 'vfs-6.11.module.description' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2024-07-15 11:14:59 -07:00
crypto
Merge tag 'mm-stable-2024-05-17-19-19' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2024-05-19 09:21:03 -07:00
debugfs
Merge tag 'vfs-6.11.mount.api' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2024-07-15 11:31:32 -07:00
devpts
…
dlm
dlm: add rcu_barrier before destroy kmem cache
2024-06-13 12:48:46 -05:00
ecryptfs
Merge tag 'hardening-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
2024-05-13 14:14:05 -07:00
efivarfs
efivarfs: Convert to new uid/gid option parsing helpers
2024-07-02 06:21:18 +02:00
efs
Merge tag 'vfs-6.11.module.description' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2024-07-15 11:14:59 -07:00
erofs
erofs: silence uninitialized variable warning in z_erofs_scan_folio()
2024-07-13 12:47:34 +08:00
exfat
Merge tag 'exfat-for-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat
2024-07-17 12:53:47 -07:00
exportfs
fhandle: relax open_by_handle_at() permission checks
2024-05-28 15:57:23 +02:00
ext2
ext2: Verify bitmap and itable block numbers before using them
2024-06-26 12:54:11 +02:00
ext4
Merge tag 'ext4_for_linus-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
2024-07-18 17:03:42 -07:00
f2fs
Merge tag 'vfs-6.11.casefold' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2024-07-15 11:18:49 -07:00
fat
Merge tag 'vfs-6.11.mount.api' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2024-07-15 11:31:32 -07:00
freevxfs
…
fuse
Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
2024-07-19 11:57:55 -07:00
gfs2
gfs2: Clean up glock demote logic
2024-07-09 10:40:03 +02:00
hfs
Merge tag 'vfs-6.11.module.description' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2024-07-15 11:14:59 -07:00
hfsplus
Merge tag 'vfs-6.11.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2024-07-15 10:52:51 -07:00
hostfs
Merge tag 'vfs-6.11.mount.api' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2024-07-15 11:31:32 -07:00
hpfs
Merge tag 'vfs-6.11.module.description' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2024-07-15 11:14:59 -07:00
hugetlbfs
Merge tag 'mm-stable-2024-07-21-14-50' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2024-07-21 17:15:46 -07:00
iomap
Merge tag 'vfs-6.11.iomap' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2024-07-15 13:28:14 -07:00
isofs
Merge tag 'fs_for_v6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
2024-07-17 13:11:42 -07:00
jbd2
jbd2: increase maximum transaction size
2024-07-08 23:59:37 -04:00
jffs2
jffs2: Remove calls to set/clear the folio error flag
2024-05-31 12:31:41 +02:00
jfs
jfs: xattr: fix buffer overflow for invalid xattr
2024-06-04 18:09:03 +02:00
kernfs
kernfs: mount: Remove unnecessary ‘NULL’ values from knparent
2024-05-04 19:02:39 +02:00
lockd
lockd: Use *-y instead of *-objs in Makefile
2024-07-08 14:10:03 -04:00
minix
Merge tag 'vfs-6.11.module.description' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2024-07-15 11:14:59 -07:00
netfs
netfs: Rename CONFIG_FSCACHE_DEBUG to CONFIG_NETFS_DEBUG
2024-07-24 10:15:38 +02:00
nfs
Merge tag 'mm-stable-2024-07-21-14-50' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2024-07-21 17:15:46 -07:00
nfs_common
fs: nfs: add missing MODULE_DESCRIPTION() macros
2024-07-08 13:47:24 -04:00
nfsd
Merge tag 'nfsd-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux
2024-07-17 12:00:49 -07:00
nilfs2
Merge tag 'mm-nonmm-stable-2024-07-21-15-07' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2024-07-21 17:56:22 -07:00
nls
fs: nls: add missing MODULE_DESCRIPTION() macros
2024-06-03 16:37:07 +02:00
notify
fsnotify: clear PARENT_WATCHED flags lazily
2024-06-05 09:52:38 +02:00
ntfs3
ntfs3: Convert to new uid/gid option parsing helpers
2024-07-02 06:21:19 +02:00
ocfs2
Merge tag 'mm-nonmm-stable-2024-07-21-15-07' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2024-07-21 17:56:22 -07:00
omfs
…
openpromfs
openpromfs: add missing MODULE_DESCRIPTION() macro
2024-06-20 09:46:01 +02:00
orangefs
orangefs: Remove calls to set/clear the error flag
2024-05-31 12:31:41 +02:00
overlayfs
ovl: fix encoding fid for lower only root
2024-06-14 10:30:40 +02:00
proc
Merge tag 'mm-stable-2024-07-21-14-50' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2024-07-21 17:15:46 -07:00
pstore
Merge tag 'memblock-v6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock
2024-07-18 14:48:11 -07:00
qnx4
qnx4: add MODULE_DESCRIPTION()
2024-05-28 11:52:53 +02:00
qnx6
qnx6: add MODULE_DESCRIPTION()
2024-05-28 11:52:49 +02:00
quota
vfs: replace WARN(down_read_trylock, ...) abuse with proper asserts
2024-06-03 15:45:47 +02:00
ramfs
mm: switch mm->get_unmapped_area() to a flag
2024-04-25 20:56:25 -07:00
reiserfs
reiserfs: Remove call to folio_set_error()
2024-05-31 12:31:41 +02:00
romfs
romfs: Convert romfs_read_folio() to use a folio
2024-05-31 12:31:42 +02:00
smb
Merge tag '6.11-rc-smb3-server-fixes' of git://git.samba.org/ksmbd
2024-07-21 20:50:39 -07:00
squashfs
Merge tag 'mm-nonmm-stable-2024-05-19-11-56' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2024-05-19 14:02:03 -07:00
sysfs
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sysv
fs: sysv: add MODULE_DESCRIPTION()
2024-05-28 11:52:45 +02:00
tracefs
tracefs: Convert to new uid/gid option parsing helpers
2024-07-02 06:21:20 +02:00
ubifs
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udf
udf: prevent integer overflow in udf_bitmap_free_blocks()
2024-06-26 12:54:11 +02:00
ufs
Merge tag 'mm-nonmm-stable-2024-07-21-15-07' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2024-07-21 17:56:22 -07:00
unicode
kbuild: use $(src) instead of $(srctree)/$(src) for source directory
2024-05-10 04:34:52 +09:00
vboxsf
Merge tag 'vfs-6.11.mount.api' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2024-07-15 11:31:32 -07:00
verity
bpf: treewide: Align kfunc signatures to prog point-of-view
2024-06-12 11:01:31 -07:00
xfs
Merge tag 'xfs-6.11-merge-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
2024-07-17 12:57:48 -07:00
zonefs
zonefs: enable support for large folios
2024-06-11 11:22:57 +09:00
aio.c
Merge tag 'mm-stable-2024-07-21-14-50' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2024-07-21 17:15:46 -07:00
anon_inodes.c
fs: Create anon_inode_getfile_fmode()
2024-04-26 10:33:05 +02:00
attr.c
fs: Export in_group_or_capable()
2024-06-25 11:15:48 +02:00
backing-file.c
ovl: implement tmpfile
2024-05-02 20:35:57 +02:00
bad_inode.c
…
binfmt_elf_fdpic.c
fs: don't block i_writecount during exec
2024-06-03 15:52:10 +02:00
binfmt_elf_test.c
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binfmt_elf.c
Merge tag 'execve-v6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
2024-07-16 12:59:20 -07:00
binfmt_flat.c
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binfmt_misc.c
Merge tag 'vfs-6.11.module.description' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2024-07-15 11:14:59 -07:00
binfmt_script.c
fs: binfmt: add missing MODULE_DESCRIPTION() macros
2024-05-28 12:06:51 +02:00
buffer.c
Merge tag 'ext4_for_linus-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
2024-07-18 17:03:42 -07:00
char_dev.c
…
compat_binfmt_elf.c
…
coredump.c
coredump: simplify zap_process()
2024-07-04 23:43:09 -07:00
d_path.c
…
dax.c
dax: use huge_zero_folio
2024-04-25 20:56:20 -07:00
dcache.c
Merge tag 'vfs-6.11.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2024-07-15 10:52:51 -07:00
direct-io.c
…
drop_caches.c
…
eventfd.c
…
eventpoll.c
epoll: be better about file lifetimes
2024-05-05 14:00:48 -07:00
exec_test.c
exec: Avoid pathological argc, envc, and bprm->p values
2024-07-13 21:31:58 -07:00
exec.c
Merge tag 'execve-v6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
2024-07-16 12:59:20 -07:00
fcntl.c
fcntl: add F_DUPFD_QUERY fcntl()
2024-05-10 08:26:31 +02:00
fhandle.c
fhandle: relax open_by_handle_at() permission checks
2024-05-28 15:57:23 +02:00
file_table.c
…
file.c
fs/file: fix the check in find_next_fd()
2024-05-30 09:11:47 +02:00
filesystems.c
…
fs_context.c
…
fs_parser.c
fs_parse: add uid & gid option option parsing helpers
2024-07-02 06:20:49 +02:00
fs_pin.c
…
fs_struct.c
…
fs_types.c
…
fs-writeback.c
…
fsopen.c
vfs: retire user_path_at_empty and drop empty arg from getname_flags
2024-06-05 17:03:57 +02:00
init.c
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inode.c
vfs: handle __wait_on_freeing_inode() and evict() race
2024-07-24 10:52:58 +02:00
internal.h
Merge tag 'vfs-6.11.pidfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2024-07-15 12:34:01 -07:00
ioctl.c
fs/ioctl: Add a comment to keep the logic in sync with LSM policies
2024-05-13 06:58:35 +02:00
Kconfig
…
Kconfig.binfmt
exec: Add KUnit test for bprm_stack_limits()
2024-06-19 13:13:55 -07:00
kernel_read_file.c
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libfs.c
libfs: Introduce case-insensitive string comparison helper
2024-06-07 17:00:44 +02:00
locks.c
Merge tag 'vfs-6.10-rc8.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2024-07-11 09:03:28 -07:00
Makefile
…
mbcache.c
…
mnt_idmapping.c
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mount.h
Merge tag 'vfs-6.11.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2024-07-15 11:54:04 -07:00
mpage.c
buffer: Remove calls to set and clear the folio error flag
2024-05-31 12:31:43 +02:00
namei.c
vfs: correct the comments of vfs_*() helpers
2024-07-24 10:53:12 +02:00
namespace.c
Merge tag 'vfs-6.11.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2024-07-15 11:54:04 -07:00
nsfs.c
nsfs: use cleanup guard
2024-07-18 09:50:08 +02:00
open.c
Merge tag 'vfs-6.11.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2024-07-15 10:52:51 -07:00
pidfs.c
pidfs: handle kernels without namespaces cleanly
2024-07-24 10:53:13 +02:00
pipe.c
…
pnode.c
…
pnode.h
…
posix_acl.c
…
proc_namespace.c
fs: rename show_mnt_opts -> show_vfsmnt_opts
2024-06-28 14:36:43 +02:00
read_write.c
fs: Initial atomic write support
2024-06-20 15:19:17 -06:00
readdir.c
readdir: Add missing quote in macro comment
2024-06-03 15:49:26 +02:00
remap_range.c
…
select.c
…
seq_file.c
seq_file: Simplify __seq_puts()
2024-05-02 16:28:20 +02:00
signalfd.c
signalfd: drop an obsolete comment
2024-05-24 13:34:07 +02:00
splice.c
…
stack.c
…
stat.c
Merge tag 'for-6.11/block-20240710' of git://git.kernel.dk/linux
2024-07-15 14:20:22 -07:00
statfs.c
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super.c
fs: don't misleadingly warn during thaw operations
2024-06-18 16:20:47 +02:00
sync.c
…
sysctls.c
…
timerfd.c
…
userfaultfd.c
mm: provide mm_struct and address to huge_ptep_get()
2024-07-12 15:52:15 -07:00
utimes.c
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xattr.c
…