CVE-2022-49318

MEDIUM

Linux Kernel - Denial of Service via F2FS Block Address Validation

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: f2fs: remove WARN_ON in f2fs_is_valid_blkaddr Syzbot triggers two WARNs in f2fs_is_valid_blkaddr and __is_bitmap_valid. For example, in f2fs_is_valid_blkaddr, if type is DATA_GENERIC_ENHANCE or DATA_GENERIC_ENHANCE_READ, it invokes WARN_ON if blkaddr is not in the right range. The call trace is as follows: f2fs_get_node_info+0x45f/0x1070 read_node_page+0x577/0x1190 __get_node_page.part.0+0x9e/0x10e0 __get_node_page f2fs_get_node_page+0x109/0x180 do_read_inode f2fs_iget+0x2a5/0x58b0 f2fs_fill_super+0x3b39/0x7ca0 Fix these two WARNs by replacing WARN_ON with dump_stack.

References (6)

Core 6

Scores

CVSS v3 5.5
EPSS 0.0026
EPSS Percentile 17.3%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

Status published
Products (20)
linux/Kernel 3.8.0 - 5.4.198linux
linux/Kernel 5.11.0 - 5.15.47linux
linux/Kernel 5.16.0 - 5.17.15linux
linux/Kernel 5.18.0 - 5.18.4linux
linux/Kernel 5.5.0 - 5.10.122linux
Linux/Linux < 3.8
Linux/Linux 3.8
Linux/Linux 5.10.122 - 5.10.*
Linux/Linux 5.15.47 - 5.15.*
Linux/Linux 5.17.15 - 5.17.*
... and 10 more
Published Feb 26, 2025
Tracked Since Feb 18, 2026