Repository files (latest commit first)

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
..
acpi	ACPICA: Avoid sequence overread in call to strncmp()	2025-06-27 11:02:52 +01:00
asm-generic
clocksource
crypto
drm	This is the 5.4.294 stable release	2025-06-05 07:11:21 +00:00
dt-bindings
keys
kvm
linux	ANDROID: 16K: Don't copy data vma for maps/smaps output	2025-08-22 07:06:50 -07:00
math-emu
media
misc
net	netfilter: nf_tables: do not defer rule destruction via call_rcu	2025-06-04 14:32:36 +02:00
pcmcia
ras
rdma
scsi
soc
sound	This is the 5.4.294 stable release	2025-06-05 07:11:21 +00:00
target
trace	This is the 5.4.295 stable release	2025-06-30 08:05:33 +00:00
uapi	This is the 5.4.295 stable release	2025-06-30 08:05:33 +00:00
vdso
video
xen	xen/mcelog: Add __nonstring annotations for unterminated strings	2025-05-02 07:39:09 +02:00
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