5.5

CVE-2022-49072: gpio: Restrict usage of GPIO chip irq members before initialization

Analyzed
AliasesUBUNTU-CVE-2022-49072DEBIAN-CVE-2022-49072
Published 26-02-2025Last modified 23-05-2026

Vulnerability summary

CVE-2022-49072 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.27% chance of exploitation in the next 30 days, higher than 19% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.27%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 13 · Related 12
RHSA-2023:2458USN-8098-1USN-8098-10USN-8098-2USN-8098-3USN-8098-4

Timeline

  1. 26-02-2025
    PublishedVulnerability first disclosed.
  2. 23-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: gpio: Restrict usage of GPIO chip irq members before initialization GPIO chip irq members are exposed before they could be completely initialized and this leads to race conditions. One such issue was observed for the gc->irq.domain variable which was accessed through the I2C interface in gpiochip_to_irq() before it could be initialized by gpiochip_add_irqchip(). This resulted in Kernel NULL pointer dereference. Following are the logs for reference :- kernel: Call Trace: kernel: gpiod_to_irq+0x53/0x70 kernel: acpi_dev_gpio_irq_get_by+0x113/0x1f0 kernel: i2c_acpi_get_irq+0xc0/0xd0 kernel: i2c_device_probe+0x28a/0x2a0 kernel: really_probe+0xf2/0x460 kernel: RIP: 0010:gpiochip_to_irq+0x47/0xc0 To avoid such scenarios, restrict usage of GPIO chip irq members before they are completely initialized.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.27%

Chance of exploitation in the next 30 days

Percentile

19%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.27% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu103 products
  • linux< 5.4.0-227.247 | < 5.15.0-37.39
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.4.0-1156.166 | < 5.15.0-1011.14
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 48057ed1840fde9239b1e000bea1a0a1f07c5e99, < 7e88a50704b0c49ad3f2d11e8b963341cf68a89f | ≥ 48057ed1840fde9239b1e000bea1a0a1f07c5e99, < 0912cf021fb5749372b3782611d8b1de4986c13a | ≥ 48057ed1840fde9239b1e000bea1a0a1f07c5e99, < 2c1fa3614795e2b24da1ba95de0b27b8f6ea4537 | ≥ 48057ed1840fde9239b1e000bea1a0a1f07c5e99, < f8dea54f74cae8c2e4d7b2952e8fed7743a85c87 | ≥ 48057ed1840fde9239b1e000bea1a0a1f07c5e99, < 5467801f1fcbdc46bc7298a84dbf3ca1ff2a7320 | 44dfa46aaf7cf594ac89bc1a0c0e56c498b31269 | ≥ 5.2.14, < 5.3 | 5.3
  • linux_kernel< 5.10.111 | ≥ 5.11, < 5.15.34 | ≥ 5.16, < 5.16.20 | ≥ 5.17, < 5.17.3 | 5.18:rc1
Debian1 product
  • linux< 5.17.3-1

3 vendors · 106 products

References

21 links
Show all 21 references