# CVE-2022-48660: linux: In the Linux kernel, the following vulnerability has been resolved:  gpiolib: cdev: Set lineevent_state::irq after IR...

CVE-2022-48660 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-48660, released April 28, 2024. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2022-48660
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0024
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Apr 28, 2024

## Description

In the Linux kernel, the following vulnerability has been resolved:  gpiolib: cdev: Set lineevent_state::irq after IRQ register successfully  When running gpio test on nxp-ls1028 platform with below command gpiomon --num-events=3 --rising-edge gpiochip1 25 There will be a warning trace as below: Call trace: free_irq+0x204/0x360 lineevent_free+0x64/0x70 gpio_ioctl+0x598/0x6a0 __arm64_sys_ioctl+0xb4/0x100 invoke_syscall+0x5c/0x130 ...... el0t_64_sync+0x1a0/0x1a4 The reason of this issue is that calling request_threaded_irq() function failed, and then lineevent_free() is invoked to release the resource. Since the lineevent_state::irq was already set, so the subsequent invocation of free_irq() would trigger the above warning call trace. To fix this issue, set the lineevent_state::irq after the IRQ register successfully.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 6.0.2-1 | [DEBIAN-CVE-2022-48660](https://patchblox.com/security/data/fix/linux/debian-cve-2022-48660.md) | Apr 28, 2024 |
| Linux | linux Debian 13.5 (trixie) | 6.0.2-1 | [DEBIAN-CVE-2022-48660](https://patchblox.com/security/data/fix/linux/debian-cve-2022-48660.md) | Apr 28, 2024 |
| Linux | linux Debian 14 | 6.0.2-1 | [DEBIAN-CVE-2022-48660](https://patchblox.com/security/data/fix/linux/debian-cve-2022-48660.md) | Apr 28, 2024 |

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