CVE-2023-52682

2024-05-1700:00:00

ubuntu.com

linux kernel

f2fs vulnerability

post_read

block writeback

compressed inode

encrypted inode

wait

gced page writeback

ipu write path

6.6 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

15.6%

JSON

In the Linux kernel, the following vulnerability has been resolved: f2fs:
fix to wait on block writeback for post_read case If inode is compressed,
but not encrypted, it missed to call f2fs_wait_on_block_writeback() to wait
for GCed page writeback in IPU write path. Thread A GC-Thread - f2fs_gc -
do_garbage_collect - gc_data_segment - move_data_block -
f2fs_submit_page_write migrate normal cluster’s block via meta_inode’s page
cache - f2fs_write_single_data_page - f2fs_do_write_data_page -
f2fs_inplace_write_data - f2fs_submit_page_bio IRQ - f2fs_read_end_io IRQ
old data overrides new data due to out-of-order GC and common IO. -
f2fs_read_end_io

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux< anyUNKNOWN
ubuntu20.04noarchlinux< anyUNKNOWN
ubuntu22.04noarchlinux< anyUNKNOWN
ubuntu23.10noarchlinux< 6.5.0-41.41UNKNOWN
ubuntu24.04noarchlinux< anyUNKNOWN
ubuntu14.04noarchlinux< anyUNKNOWN
ubuntu16.04noarchlinux< anyUNKNOWN
ubuntu18.04noarchlinux-aws< anyUNKNOWN
ubuntu20.04noarchlinux-aws< anyUNKNOWN
ubuntu22.04noarchlinux-aws< anyUNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	linux	< any	UNKNOWN
ubuntu	20.04	noarch	linux	< any	UNKNOWN
ubuntu	22.04	noarch	linux	< any	UNKNOWN
ubuntu	23.10	noarch	linux	< 6.5.0-41.41	UNKNOWN
ubuntu	24.04	noarch	linux	< any	UNKNOWN
ubuntu	14.04	noarch	linux	< any	UNKNOWN
ubuntu	16.04	noarch	linux	< any	UNKNOWN
ubuntu	18.04	noarch	linux-aws	< any	UNKNOWN
ubuntu	20.04	noarch	linux-aws	< any	UNKNOWN
ubuntu	22.04	noarch	linux-aws	< any	UNKNOWN