CVE-2023-52682: linux kernel Out-of-bounds Read — Fix

Description

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

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CVSS v3.1 Score

7.1

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Weakness Type (CWE)

CWE-125 Out-of-bounds Read

Affected Products

Vendor	Product	Versions
linux	linux_kernel	5.6 — 6.1.75
linux	linux_kernel	6.2 — 6.6.14
linux	linux_kernel	6.7 — 6.7.2

References

Advisories & Patches

https://git.kernel.org/stable/c/4535be48780431753505e74e1b1ad4836a189bc2 https://git.kernel.org/stable/c/55fdc1c24a1d6229fe0ecf31335fb9a2eceaaa00 https://git.kernel.org/stable/c/9bfd5ea71521d0e522ba581c6ccc5db93759c0c3 https://git.kernel.org/stable/c/f904c156d8011d8291ffd5b6b398f3747e294986 https://git.kernel.org/stable/c/4535be48780431753505e74e1b1ad4836a189bc2 https://git.kernel.org/stable/c/55fdc1c24a1d6229fe0ecf31335fb9a2eceaaa00 https://git.kernel.org/stable/c/9bfd5ea71521d0e522ba581c6ccc5db93759c0c3 https://git.kernel.org/stable/c/f904c156d8011d8291ffd5b6b398f3747e294986

Frequently Asked Questions

What is CVE-2023-52682? +

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 It has a CVSS v3.1 base score of 7.1 (HIGH).

How severe is CVE-2023-52682? +

CVE-2023-52682 has a CVSS v3.1 score of 7.1 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2023-52682? +

CVE-2023-52682 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2023-52682? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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