CVE-2022-49072
gpio: Restrict usage of GPIO chip irq members before initialization
- Published
- Updated
- Reserved
- Assigned by
- Linux
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.27% · top 81% of all CVEs (6 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
Affected products
- affected 48057ed1840fde9239b1e000bea1a0a1f07c5e99 – < 7e88a50704b0c49ad3f2d11e8b963341cf68a89f
- affected 48057ed1840fde9239b1e000bea1a0a1f07c5e99 – < 0912cf021fb5749372b3782611d8b1de4986c13a
- affected 48057ed1840fde9239b1e000bea1a0a1f07c5e99 – < 2c1fa3614795e2b24da1ba95de0b27b8f6ea4537
- affected 48057ed1840fde9239b1e000bea1a0a1f07c5e99 – < f8dea54f74cae8c2e4d7b2952e8fed7743a85c87
- affected 48057ed1840fde9239b1e000bea1a0a1f07c5e99 – < 5467801f1fcbdc46bc7298a84dbf3ca1ff2a7320
- affected 44dfa46aaf7cf594ac89bc1a0c0e56c498b31269
- affected 5.2.14 – < 5.3
- affected 5.3
- unaffected < 5.3
- unaffected 5.10.111 – ≤ 5.10.*
- unaffected 5.15.34 – ≤ 5.15.*
- unaffected 5.16.20 – ≤ 5.16.*
- unaffected 5.17.3 – ≤ 5.17.*
- unaffected 5.18 – ≤ *
References (5)
- https://git.kernel.org/stable/c/7e88a50704b0c49ad3f2d11e8b963341cf68a89f (opens in a new tab)
- https://git.kernel.org/stable/c/0912cf021fb5749372b3782611d8b1de4986c13a (opens in a new tab)
- https://git.kernel.org/stable/c/2c1fa3614795e2b24da1ba95de0b27b8f6ea4537 (opens in a new tab)
- https://git.kernel.org/stable/c/f8dea54f74cae8c2e4d7b2952e8fed7743a85c87 (opens in a new tab)
- https://git.kernel.org/stable/c/5467801f1fcbdc46bc7298a84dbf3ca1ff2a7320 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2022-49072)Record last updated .