CVE-2022-49270 Vulnerability Analysis & Exploit Details

CVE-2022-49270
Vulnerability Scoring

7.8
/10
Very High Risk

Highly exploitable, CVE-2022-49270 poses a critical security risk that could lead to severe breaches.

Attack Complexity Details

  • Attack Complexity: Low
    Exploits can be performed without significant complexity or special conditions.
  • Attack Vector: Local
    Vulnerability requires local system access.
  • Privileges Required: Low
    Some privileges are necessary to exploit the vulnerability.
  • Scope: Unchanged
    Exploit remains within the originally vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2022-49270 Details

Status: Analyzed

Last updated: 🕒 25 Mar 2025, 15:23 UTC
Originally published on: 🕖 26 Feb 2025, 07:01 UTC

Time between publication and last update: 27 days

CVSS Release: version 3

CVSS3 Source

134c704f-9b21-4f2e-91b3-4a467353bcc0

CVSS3 Type

Secondary

CVSS3 Vector

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

CVE-2022-49270 Vulnerability Summary

CVE-2022-49270: In the Linux kernel, the following vulnerability has been resolved: dm: fix use-after-free in dm_cleanup_zoned_dev() dm_cleanup_zoned_dev() uses queue, so it must be called before blk_cleanup_disk() starts its killing: blk_cleanup_disk->blk_cleanup_queue()->kobject_put()->blk_release_queue()-> ->...RCU...->blk_free_queue_rcu()->kmem_cache_free() Otherwise, RCU callback may be executed first and dm_cleanup_zoned_dev() will touch free'd memory: BUG: KASAN: use-after-free in dm_cleanup_zoned_dev+0x33/0xd0 Read of size 8 at addr ffff88805ac6e430 by task dmsetup/681 CPU: 4 PID: 681 Comm: dmsetup Not tainted 5.17.0-rc2+ #6 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-2 04/01/2014 Call Trace: <TASK> dump_stack_lvl+0x57/0x7d print_address_description.constprop.0+0x1f/0x150 ? dm_cleanup_zoned_dev+0x33/0xd0 kasan_report.cold+0x7f/0x11b ? dm_cleanup_zoned_dev+0x33/0xd0 dm_cleanup_zoned_dev+0x33/0xd0 __dm_destroy+0x26a/0x400 ? dm_blk_ioctl+0x230/0x230 ? up_write+0xd8/0x270 dev_remove+0x156/0x1d0 ctl_ioctl+0x269/0x530 ? table_clear+0x140/0x140 ? lock_release+0xb2/0x750 ? remove_all+0x40/0x40 ? rcu_read_lock_sched_held+0x12/0x70 ? lock_downgrade+0x3c0/0x3c0 ? rcu_read_lock_sched_held+0x12/0x70 dm_ctl_ioctl+0xa/0x10 __x64_sys_ioctl+0xb9/0xf0 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fb6dfa95c27

Assessing the Risk of CVE-2022-49270

Access Complexity Graph

The exploitability of CVE-2022-49270 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2022-49270

CVE-2022-49270 presents an accessible attack vector with minimal effort required. Restricting access controls and implementing security updates are critical to reducing exploitation risks.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2022-49270, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2022-49270, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: High
    Exploiting CVE-2022-49270 can result in unauthorized access to sensitive data, severely compromising data privacy.
  • Integrity: High
    CVE-2022-49270 could allow unauthorized modifications to data, potentially affecting system reliability and trust.
  • Availability: High
    CVE-2022-49270 can disrupt system operations, potentially causing complete denial of service (DoS).

Exploit Prediction Scoring System (EPSS)

The EPSS score estimates the probability that this vulnerability will be exploited in the near future.

EPSS Score: 0.045% (probability of exploit)

EPSS Percentile: 18.4% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 81.6% of others.

CVE-2022-49270 References

External References

CWE Common Weakness Enumeration

CWE-416

Vulnerable Configurations

  • cpe:2.3:o:linux:linux_kernel:5.14:-:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.14:-:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.14.1:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.14.1:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.14.2:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.14.2:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.14.3:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.14.3:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.14.4:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.14.4:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.14.5:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.14.5:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.14.6:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.14.6:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.14.7:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.14.7:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.14.8:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.14.8:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.14.9:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.14.9:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.14.10:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.14.10:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.14.11:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.14.11:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.14.12:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.14.12:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.14.13:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.14.13:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.14.14:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.14.14:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.14.15:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.14.15:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.14.16:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.14.16:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.14.17:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.14.17:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.14.18:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.14.18:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.14.19:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.14.19:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.14.20:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.14.20:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.14.21:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.14.21:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.14:rc1:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.14:rc1:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.14:rc2:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.14:rc2:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.14:rc3:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.14:rc3:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.14:rc4:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.14:rc4:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.14:rc5:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.14:rc5:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.14:rc6:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.14:rc6:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.15:-:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.15:-:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.15.0:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.15.0:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.15.0-58:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.15.0-58:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.15.1:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.15.1:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.15.2:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.15.2:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.15.3:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.15.3:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.15.3:-:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.15.3:-:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.15.4:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.15.4:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.15.5:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.15.5:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.15.6:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.15.6:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.15.7:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.15.7:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.15.8:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.15.8:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.15.9:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.15.9:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.15.10:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.15.10:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.15.11:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.15.11:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.15.12:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.15.12:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.15.13:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.15.13:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.15.14:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.15.14:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.15.15:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.15.15:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.15.16:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.15.16:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.15.17:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.15.17:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.15.18:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.15.18:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.15.19:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.15.19:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.15.20:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.15.20:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.15.21:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.15.21:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.15.22:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.15.22:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.15.23:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.15.23:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.15.24:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.15.24:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.15.25:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.15.25:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.15.26:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.15.26:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.15.27:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.15.27:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.15.28:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.15.28:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.15.29:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.15.29:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.15.30:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.15.30:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.15.31:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.15.31:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.15.32:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.15.32:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.16:-:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.16:-:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.16.1:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.16.1:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.16.2:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.16.2:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.16.3:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.16.3:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.16.4:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.16.4:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.16.5:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.16.5:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.16.6:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.16.6:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.16.7:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.16.7:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.16.8:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.16.8:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.16.9:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.16.9:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.16.10:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.16.10:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.16.11:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.16.11:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.16.12:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.16.12:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.16.13:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.16.13:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.16.14:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.16.14:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.16.15:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.16.15:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.16.16:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.16.16:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.16.17:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.16.17:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.16.18:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.16.18:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.17:-:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.17:-:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.17.1:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.17.1:*:*:*:*:*:*:*

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