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Filename Latest commit message Latest commit date
Kalesh Singh 2f1e2df209 ANDROID: 16K: Don't copy data vma for maps/smaps output 
Remove get_data_vma() which made a copy of the original VMA containing
padding and modified vm_end to exclude the trailing padding (if any).

Avoid this copy to avoid races due to stale data relating to
vma->vm_file.

Instead use VMA_PAD_START(vma) directly to get the correct end excluding
padding if any.

Add additional check to verify the padding VMA is as expected and also
check for allocation failure of the pad VMA.

ELFs with padding can be loaded from tmpfs. For simplicity swapped out
shmem accounting in smaps, skips the fast path for read only files and
walks the page table with the range adjusted for padding.

Example output:

===== Maps =====

7ff6306c2000-7ff6306c3000 r--p 00000000 fe:09 1912                       /system/lib64/bootstrap/libdl.so
7ff6306c3000-7ff6306c6000 ---p 00000000 00:00 0                          [page size compat]
7ff6306c6000-7ff6306c7000 r-xp 00004000 fe:09 1912                       /system/lib64/bootstrap/libdl.so
7ff6306c7000-7ff6306ca000 ---p 00000000 00:00 0                          [page size compat]
7ff6306ca000-7ff6306cb000 r--p 00008000 fe:09 1912                       /system/lib64/bootstrap/libdl.so

===== Smaps =====

7ff6306c2000-7ff6306c3000 r--p 00000000 fe:09 1912                       /system/lib64/bootstrap/libdl.so
Size:                  4 kB
KernelPageSize:        4 kB
MMUPageSize:           4 kB
Rss:                   4 kB
Pss:                   0 kB
Pss_Dirty:             0 kB
Shared_Clean:          4 kB
Shared_Dirty:          0 kB
Private_Clean:         0 kB
Private_Dirty:         0 kB
Referenced:            4 kB
Anonymous:             0 kB
KSM:                   0 kB
LazyFree:              0 kB
AnonHugePages:         0 kB
ShmemPmdMapped:        0 kB
FilePmdMapped:         0 kB
Shared_Hugetlb:        0 kB
Private_Hugetlb:       0 kB
Swap:                  0 kB
SwapPss:               0 kB
Locked:                0 kB
THPeligible:           0
VmFlags: rd mr mw me ??
7ff6306c3000-7ff6306c6000 ---p 00000000 00:00 0                          [page size compat]
Size:                 12 kB
KernelPageSize:        4 kB
MMUPageSize:           4 kB
Rss:                   0 kB
Pss:                   0 kB
Pss_Dirty:             0 kB
Shared_Clean:          0 kB
Shared_Dirty:          0 kB
Private_Clean:         0 kB
Private_Dirty:         0 kB
Referenced:            0 kB
Anonymous:             0 kB
KSM:                   0 kB
LazyFree:              0 kB
AnonHugePages:         0 kB
ShmemPmdMapped:        0 kB
FilePmdMapped:         0 kB
Shared_Hugetlb:        0 kB
Private_Hugetlb:       0 kB
Swap:                  0 kB
SwapPss:               0 kB
Locked:                0 kB
THPeligible:           0
VmFlags: mr mw me
7ff6306c6000-7ff6306c7000 r-xp 00004000 fe:09 1912                       /system/lib64/bootstrap/libdl.so
Size:                  4 kB
KernelPageSize:        4 kB
MMUPageSize:           4 kB
Rss:                   4 kB
Pss:                   0 kB
Pss_Dirty:             0 kB
Shared_Clean:          4 kB
Shared_Dirty:          0 kB
Private_Clean:         0 kB
Private_Dirty:         0 kB
Referenced:            4 kB
Anonymous:             0 kB
KSM:                   0 kB
LazyFree:              0 kB
AnonHugePages:         0 kB
ShmemPmdMapped:        0 kB
FilePmdMapped:         0 kB
Shared_Hugetlb:        0 kB
Private_Hugetlb:       0 kB
Swap:                  0 kB
SwapPss:               0 kB
Locked:                0 kB
THPeligible:           0
VmFlags: rd ex mr mw me ??
7ff6306c7000-7ff6306ca000 ---p 00000000 00:00 0                          [page size compat]
Size:                 12 kB
KernelPageSize:        4 kB
MMUPageSize:           4 kB
Rss:                   0 kB
Pss:                   0 kB
Pss_Dirty:             0 kB
Shared_Clean:          0 kB
Shared_Dirty:          0 kB
Private_Clean:         0 kB
Private_Dirty:         0 kB
Referenced:            0 kB
Anonymous:             0 kB
KSM:                   0 kB
LazyFree:              0 kB
AnonHugePages:         0 kB
ShmemPmdMapped:        0 kB
FilePmdMapped:         0 kB
Shared_Hugetlb:        0 kB
Private_Hugetlb:       0 kB
Swap:                  0 kB
SwapPss:               0 kB
Locked:                0 kB
THPeligible:           0
VmFlags: mr mw me
7ff6306ca000-7ff6306cb000 r--p 00008000 fe:09 1912                       /system/lib64/bootstrap/libdl.so
Size:                  4 kB
KernelPageSize:        4 kB
MMUPageSize:           4 kB
Rss:                   4 kB
Pss:                   4 kB
Pss_Dirty:             4 kB
Shared_Clean:          0 kB
Shared_Dirty:          0 kB
Private_Clean:         0 kB
Private_Dirty:         4 kB
Referenced:            4 kB
Anonymous:             4 kB
KSM:                   0 kB
LazyFree:              0 kB
AnonHugePages:         0 kB
ShmemPmdMapped:        0 kB
FilePmdMapped:         0 kB
Shared_Hugetlb:        0 kB
Private_Hugetlb:       0 kB
Swap:                  0 kB
SwapPss:               0 kB
Locked:                0 kB
THPeligible:           0
VmFlags: rd mr mw me ac

Bug: 427145188
Bug: 409239984
Change-Id: Ic54e89571276db62ffc01681e7ca8986bb1ca7c4
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
2025-08-22 07:06:50 -07:00
..
9p This is the 5.4.276 stable release 2024-05-17 15:29:56 +00:00
adfs
affs affs: don't write overlarge OFS data block size fields 2025-04-10 14:29:42 +02:00
afs This is the 5.4.291 stable release 2025-03-13 14:53:52 +00:00
autofs autofs: fix memory leak of waitqueues in autofs_catatonic_mode 2023-09-23 11:00:02 +02:00
befs
bfs
btrfs This is the 5.4.294 stable release 2025-06-05 07:11:21 +00:00
cachefiles cachefiles: fix memory leak in cachefiles_add_cache() 2024-03-06 14:36:10 +00:00
ceph This is the 5.4.285 stable release 2024-11-09 11:29:17 +00:00
cifs This is the 5.4.294 stable release 2025-06-05 07:11:21 +00:00
coda coda: Avoid partial allocation of sig_inputArgs 2023-03-11 16:43:56 +01:00
configfs configfs: Do not override creating attribute file failure in populate_attrs() 2025-06-27 11:02:50 +01:00
cramfs
crypto UPSTREAM: fscrypt: fix derivation of SipHash keys on big endian CPUs 2022-11-22 07:58:42 +00:00
debugfs new helper: lookup_positive_unlocked() 2023-09-23 10:59:40 +02:00
devpts
dlm dlm: fix plock lookup when using multiple lockspaces 2023-09-23 10:59:55 +02:00
ecryptfs This is the 5.4.278 stable release 2024-06-18 14:18:49 +00:00
efivarfs efivarfs: Fix error on non-existent file 2025-01-09 13:23:28 +01:00
efs
erofs This is the 5.4.289 stable release 2025-01-10 07:30:07 +00:00
exportfs
ext2 This is the 5.4.257 stable release 2023-09-30 11:33:27 +00:00
ext4 This is the 5.4.295 stable release 2025-06-30 08:05:33 +00:00
f2fs This is the 5.4.295 stable release 2025-06-30 08:05:33 +00:00
fat fat: fix uninitialized variable 2024-11-08 16:20:47 +01:00
freevxfs
fscache
fuse Merge tag 'android11-5.4.293_r00' into android11-5.4 2025-05-26 03:40:18 -07:00
gfs2 This is the 5.4.295 stable release 2025-06-30 08:05:33 +00:00
hfs Merge tag 'android11-5.4.293_r00' into android11-5.4 2025-05-26 03:40:18 -07:00
hfsplus Merge tag 'android11-5.4.293_r00' into android11-5.4 2025-05-26 03:40:18 -07:00
hostfs
hpfs
hugetlbfs fs,hugetlb: fix NULL pointer dereference in hugetlbs_fill_super 2024-03-06 14:36:10 +00:00
incfs ANDROID: incremental fs: Evict inodes before freeing mount data 2023-04-05 13:07:49 -07:00
iomap This is the 5.4.270 stable release 2024-03-05 14:53:04 +00:00
isofs isofs: Prevent the use of too small fid 2025-05-02 07:39:20 +02:00
jbd2 jbd2: fix data-race and null-ptr-deref in jbd2_journal_dirty_metadata() 2025-06-27 11:02:58 +01:00
jffs2 This is the 5.4.295 stable release 2025-06-30 08:05:33 +00:00
jfs This is the 5.4.295 stable release 2025-06-30 08:05:33 +00:00
kernfs This is the 5.4.269 stable release 2024-02-24 15:47:08 +00:00
lockd fs: lockd: avoid possible wrong NULL parameter 2023-09-23 10:59:48 +02:00
minix
nfs This is the 5.4.294 stable release 2025-06-05 07:11:21 +00:00
nfs_common
nfsd nfsd: nfsd4_spo_must_allow() must check this is a v4 compound request 2025-06-27 11:02:51 +01:00
nilfs2 nilfs2: do not propagate ENOENT error from nilfs_btree_propagate() 2025-06-27 11:02:47 +01:00
nls Revert "fs/nls: make load_nls() take a const parameter" 2023-09-30 15:41:35 +00:00
notify This is the 5.4.251 stable release 2023-08-03 10:56:28 +00:00
ntfs ntfs: check overflow when iterating ATTR_RECORDs 2022-11-25 17:42:22 +01:00
ocfs2 This is the 5.4.294 stable release 2025-06-05 07:11:21 +00:00
omfs treewide: Remove uninitialized_var() usage 2023-06-09 10:29:01 +02:00
openpromfs openpromfs: finish conversion to the new mount API 2024-06-16 13:28:32 +02:00
orangefs This is the 5.4.294 stable release 2025-06-05 07:11:21 +00:00
overlayfs Merge 5.4.287 into android11-5.4-lts 2024-12-16 10:50:16 +00:00
proc ANDROID: 16K: Don't copy data vma for maps/smaps output 2025-08-22 07:06:50 -07:00
pstore pstore/ram: Fix crash when setting number of cpus to an odd number 2024-02-23 08:24:55 +01:00
qnx4
qnx6
quota quota: flush quota_release_work upon quota writeback 2024-12-14 19:44:42 +01:00
ramfs
reiserfs This is the 5.4.257 stable release 2023-09-30 11:33:27 +00:00
romfs
squashfs This is the 5.4.295 stable release 2025-06-30 08:05:33 +00:00
sysfs This is the 5.4.275 stable release 2024-05-15 16:00:38 +00:00
sysv sysv: don't call sb_bread() with pointers_lock held 2024-04-13 12:51:38 +02:00
tracefs This is the 5.4.257 stable release 2023-09-30 11:33:27 +00:00
ubifs This is the 5.4.291 stable release 2025-03-13 14:53:52 +00:00
udf udf: Fix use of check_add_overflow() with mixed type arguments 2025-03-13 12:42:51 +01:00
ufs
unicode Revert "unicode: Don't special case ignorable code points" 2024-12-14 19:44:55 +01:00
verity This is the 5.4.257 stable release 2023-09-30 11:33:27 +00:00
xfs This is the 5.4.288 stable release 2024-12-27 16:16:36 +00:00
aio.c fs/aio: Check IOCB_AIO_RW before the struct aio_kiocb conversion 2024-04-13 12:51:29 +02:00
anon_inodes.c
attr.c attr: block mode changes of symlinks 2023-09-23 11:00:06 +02:00
bad_inode.c
binfmt_aout.c binfmt: Move install_exec_creds after setup_new_exec to match binfmt_elf 2023-01-18 11:41:46 +01:00
binfmt_elf.c
binfmt_elf_fdpic.c fs: binfmt_elf_efpic: don't use missing interpreter's properties 2024-09-04 13:14:54 +02:00
binfmt_em86.c
binfmt_flat.c binfmt_flat: Fix integer overflow bug on 32 bit systems 2025-03-13 12:43:07 +01:00
binfmt_misc.c binfmt_misc: cleanup on filesystem umount 2024-09-04 13:14:53 +02:00
binfmt_script.c
block_dev.c block: Don't invalidate pagecache for invalid falloc modes 2024-01-08 11:29:48 +01:00
buffer.c This is the 5.4.225 stable release 2022-11-29 16:39:04 +00:00
char_dev.c chardev: fix error handling in cdev_device_add() 2023-01-18 11:41:25 +01:00
compat.c
compat_binfmt_elf.c
compat_ioctl.c lsm: new security_file_ioctl_compat() hook 2024-02-23 08:25:15 +01:00
coredump.c Revert "coredump: hand a pidfd to the usermode coredump helper" 2025-06-05 07:57:32 +00:00
d_path.c
dax.c
dcache.c fs: better handle deep ancestor chains in is_subdir() 2024-07-27 10:38:32 +02:00
dcookies.c
direct-io.c
drop_caches.c
eventfd.c eventfd: prevent underflow for eventfd semaphores 2023-09-23 10:59:40 +02:00
eventpoll.c This is the 5.4.289 stable release 2025-01-10 07:30:07 +00:00
exec.c This is the 5.4.285 stable release 2024-11-09 11:29:17 +00:00
fcntl.c fs: Fix file_set_fowner LSM hook inconsistencies 2024-11-08 16:20:34 +01:00
fhandle.c do_sys_name_to_handle(): use kzalloc() to fix kernel-infoleak 2024-03-26 18:22:13 -04:00
file.c fix bitmap corruption on close_range() with CLOSE_RANGE_UNSHARE 2024-09-04 13:14:50 +02:00
file_table.c
filesystems.c fs/filesystems: Fix potential unsigned integer underflow in fs_name() 2025-06-27 11:02:50 +01:00
fs-writeback.c writeback: fix call of incorrect macro 2023-05-17 11:35:58 +02:00
fs_context.c fs: avoid empty option when generating legacy mount string 2023-07-27 08:37:25 +02:00
fs_parser.c
fs_pin.c
fs_struct.c
fs_types.c
fsopen.c
inode.c This is the 5.4.285 stable release 2024-11-09 11:29:17 +00:00
internal.h fs: Establish locking order for unrelated directories 2023-07-27 08:37:26 +02:00
io_uring.c This is the 5.4.278 stable release 2024-06-18 14:18:49 +00:00
ioctl.c
Kconfig Merge tag 'android11-5.4.293_r00' into android11-5.4 2025-05-26 03:40:18 -07:00
Kconfig.binfmt
libfs.c This is the 5.4.229 stable release 2023-01-18 12:21:41 +00:00
locks.c filelock: Correct the filelock owner in fcntl_setlk/fcntl_setlk64 2024-09-04 13:15:02 +02:00
Makefile
mbcache.c mbcache: Avoid nesting of cache->c_list_lock under bit locks 2023-01-18 11:41:59 +01:00
mount.h
mpage.c
namei.c This is the 5.4.292 stable release 2025-04-11 08:16:05 +00:00
namespace.c This is the 5.4.295 stable release 2025-06-30 08:05:33 +00:00
no-block.c
nsfs.c
open.c This is the 5.4.279 stable release 2024-07-08 13:55:50 +00:00
OWNERS
pipe.c
pnode.c This is the 5.4.229 stable release 2023-01-18 12:21:41 +00:00
pnode.h
posix_acl.c
proc_namespace.c
read_write.c
readdir.c
select.c fs/select: rework stack allocation hack for clang 2024-03-26 18:22:13 -04:00
seq_file.c
signalfd.c Revert "io_uring: disable polling pollfree files" 2022-09-21 15:47:16 +02:00
splice.c Revert "fs: check FMODE_LSEEK to control internal pipe splicing" 2022-10-17 17:24:32 +02:00
stack.c
stat.c
statfs.c statfs: enforce statfs[64] structure initialization 2023-05-30 12:44:07 +01:00
super.c fs: explicitly unregister per-superblock BDIs 2024-11-08 16:20:26 +01:00
sync.c This is the 5.4.263 stable release 2023-12-11 12:08:17 +00:00
timerfd.c
userfaultfd.c ANDROID: 16K: Fixup padding vm_flags bits on VMA splits 2024-10-10 16:13:35 -07:00
utimes.c
xattr.c This is the 5.4.229 stable release 2023-01-18 12:21:41 +00:00